Among the best L-methylfolate supplements in this lineup, I name Thorne 5-MTHF 1 mg the best overall for its straightforward, moderate-dose capsule, while Jarrow Formulas Extra Strength Methyl Folate stands out for a lower-dose option and Nutricost L-Methylfolate 15 mg for shoppers seeking a high-dose product. The main choice is not simply brand or capsule count: these formulas span 400 mcg to 15 mg and include capsules, tablets, liquid, and products with added B vitamins. A higher dose is not automatically a better fit, and combined formulas can make it harder to adjust nutrients separately. I compare the products by dose clarity, format, added ingredients, and practical serving details. Read on for the full breakdown and guidance on matching a product to your needs with professional advice.
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Key Takeaways
- Thorne 5-MTHF 1 mg takes the overall spot because its single-ingredient, moderate-dose capsule offers a simpler starting point than the lineup’s many 7.5 mg and 15 mg formulas.
- The dose spread is unusually wide: Jarrow’s 400 mcg option is at the low end, while several products provide 15 mg, so buyers should compare the amount per serving before comparing capsule counts.
- Added B vitamins change the buying decision. The liquid, 7.5 mg, and softgel combinations pair methylfolate with B12, with one also listing B6; these suit people seeking a combined formula but offer less ingredient-by-ingredient control.
- High capsule counts do not settle value. NatureBell lists 240 capsules, while other options have smaller counts; the dose per serving and directions matter as much as the bottle total.
- Format is a meaningful differentiator. The lineup includes a cherry-flavored sublingual liquid, tablets, capsules, veggie capsules, and softgels, so swallowing preference and supplement routine may narrow the shortlist quickly.
| NOW Supplements Methyl Folate 1,000 mcg, 90 Tablets |  | Best for a Clearly Specified Daily Dose | Form: Tablets | Serving strength: 1,000 mcg | Quantity: 90 tablets | VIEW LATEST PRICE | See Our Full Breakdown |
| Organic Methylfolate 1000 mcg with Methyl B12, Cherry-Flavored Sublingual Liquid |  | Best Liquid Option with Methyl B12 | Active folate form: L-methylfolate (5-MTHF) | Folate dose: 1 mg (1,000 mcg) | B12 form: Methylcobalamin | VIEW LATEST PRICE | See Our Full Breakdown |
| Thorne 5-MTHF 1 mg Methylfolate Vitamin B9 Supplement, 60 Capsules |  | Best for Buyers Prioritizing Testing Details | Active ingredient: 5-MTHF (methylfolate) | Vitamin: B9 | Strength: 1 mg | VIEW LATEST PRICE | See Our Full Breakdown |
| Nutricost L-Methylfolate 15 mg, 120 Capsules |  | Best High-Strength Vegan Option | Ingredient: L-methylfolate (5-MTHF) | Serving amount: 15 mg | Capsules per bottle: 120 | VIEW LATEST PRICE | See Our Full Breakdown |
| MethylPro L-Methylfolate 15 mg, 5-MTHF Supplement, 90 Capsules |  | Best for Extensive Allergen Exclusions | Active ingredient: L-methylfolate (5-MTHF) | Amount per serving: 15 mg | Servings: 90 | VIEW LATEST PRICE | See Our Full Breakdown |
| Jarrow Formulas Extra Strength Methyl Folate, 400 mcg, 60 Veggie Capsules |  | Best Lower-Dose Pick | Brand: Jarrow Formulas | Folate form: Methylfolate (5-MTHF) | Amount per capsule: 400 mcg | VIEW LATEST PRICE | See Our Full Breakdown |
| L-Methylfolate 7.5 mg with Methyl B12 Supplement |  | Best Mid-High-Dose Folate-and-B12 Combo | L-methylfolate: 7.5 mg | Folate form: 5-MTHF calcium salt | Vitamin B12 form: Methylcobalamin | VIEW LATEST PRICE | See Our Full Breakdown |
| NatureBell Methyl Folate 15 mg, 240 Capsules |  | Best High-Count 15 mg Option | Supplement: L-methylfolate | L-methylfolate per capsule: 15 mg | Vitamin B12: Included; amount and form not specified | VIEW LATEST PRICE | See Our Full Breakdown |
| L-Methylfolate 15 mg with Vitamin B6 and Methyl B12, 240 Softgels |  | Best Multi-Nutrient Softgel | Form: Softgels | Count: 240 softgels | Serving size: 2 softgels | VIEW LATEST PRICE | See Our Full Breakdown |
| Nutricost Methylfolate 1,000 mcg, 120 Vegetarian Capsules |  | Best Mid-Range Dose Value | Serving size: 1 capsule | Methylfolate per serving: 1,000 mcg | Servings per container: 120 | VIEW LATEST PRICE | See Our Full Breakdown |
| Carlyle L-Methylfolate 15 mg, 120 Vegetarian Capsules |  | Best High-Strength Pick | L-methylfolate per serving: 15 mg | Folate amount: 25,000 mcg | Form: Vegetarian capsules | VIEW LATEST PRICE | See Our Full Breakdown |
| L-Methylfolate 15 mg with Methyl B12 Cofactor |  | Best High-Strength Combination | L-methylfolate: 15 mg | Folate form: 5-MTHF calcium salt | Vitamin B12 form: Methylcobalamin | VIEW LATEST PRICE | See Our Full Breakdown |
| Carlyle L-Methylfolate 7.5 mg, 60 Capsules |  | Best Mid-Strength Option | L-methylfolate per serving: 7.5 mg | Folate amount: 12,500 mcg | Form: Quick-release capsules | VIEW LATEST PRICE | See Our Full Breakdown |
| Methylfolate 1,000 mcg Active L-5-MTHF, 120 Servings |  | Best for Lower-Dose Buyers | Active ingredient: Methylfolate (L-5-MTHF) | Serving strength: 1,000 mcg | Servings: 120 | VIEW LATEST PRICE | See Our Full Breakdown |
| Carlyle L-Methylfolate 1000 mcg, 200 Capsules |  | Best Large-Bottle Value | Serving amount: 1,000 mcg per capsule | Form: Capsules | Quantity: 200 capsules | VIEW LATEST PRICE | See Our Full Breakdown |
| L-methylfolate supplement | Form |
|---|---|
| NOW Supplements Methyl Folate | Tablets |
| Organic Methylfolate 1000 mcg | — |
| Thorne 5-MTHF 1 mg Methylfolat | Capsules |
| Nutricost L-Methylfolate 15 mg | — |
| MethylPro L-Methylfolate 15 mg | Capsules |
| Jarrow Formulas Extra Strength | Veggie capsules |
| L-Methylfolate 7.5 mg with Met | — |
| NatureBell Methyl Folate 15 mg | — |
| L-Methylfolate 15 mg with Vita | Softgels |
| Nutricost Methylfolate 1,000 m | — |
| Carlyle L-Methylfolate 15 mg | Vegetarian capsules |
| L-Methylfolate 15 mg with Meth | — |
| Carlyle L-Methylfolate 7.5 mg | Quick-release capsules |
| Methylfolate 1,000 mcg Active | — |
| Carlyle L-Methylfolate 1000 mc | Capsules |
More Details on Our Top Picks
NOW Supplements Methyl Folate 1,000 mcg, 90 Tablets
NOW pairs a 1,000 mcg dose with patented Quatrefolic methylfolate, making this a straightforward option for shoppers who want the folate form and amount stated plainly. Its vegan, non-GMO tablet also gives it a more defined dietary profile than Thorne 5-MTHF, whose supplied details do not identify capsule ingredients. The NPA A-rated GMP certification adds a stated manufacturing standard, though it does not tell me how this tablet will fit an individual’s clinical needs. The tradeoff is format: it is a tablet, not a liquid or capsule, and the bottle has 90 tablets. This makes the most sense for buyers seeking a moderate, clearly labeled strength, rather than the 15 mg formulas from Nutricost or MethylPro.
Pros:- Uses patented Quatrefolic methylfolate
- Provides a clearly stated 1,000 mcg serving
- Vegan, vegetarian, and non-GMO classifications
- NPA A-rated GMP-certified manufacturing
Cons:- Tablet format may not suit people who have difficulty swallowing tablets
- Lower serving strength than the 15 mg Nutricost and MethylPro options
- Product details do not specify additional nutrients or capsule-free alternatives
Best for: Adults seeking a 1,000 mcg Quatrefolic tablet with vegan and non-GMO classifications and a stated GMP certification.
Not ideal for: People who prefer capsules or sublingual liquids, or shoppers specifically seeking a 15 mg serving.
- Form:Tablets
- Serving strength:1,000 mcg
- Quantity:90 tablets
- Folate form:Quatrefolic methylfolate
- Dietary classifications:Vegan, vegetarian, non-GMO
- Manufacturing quality:NPA A-rated GMP certified
Our verdict“Choose NOW if you want a 1,000 mcg Quatrefolic tablet with stated dietary classifications and manufacturing credentials.”
Organic Methylfolate 1000 mcg with Methyl B12, Cherry-Flavored Sublingual Liquid
This is the format outlier in the group: a cherry-flavored sublingual liquid that combines 1 mg of L-methylfolate with methylcobalamin B12. That pairing may appeal to buyers who want both nutrients in one product, while NOW Supplements Methyl Folate provides a tablet containing methylfolate alone. The main drawback is a missing detail: the supplied product information does not state the amount of B12, which makes it harder to compare the combined formula with a separately selected B12 supplement. Its liquid delivery also suits a different routine than Thorne’s capsules, but may be less convenient for people who favor a familiar solid dose. Product claims mention pregnancy, but this description alone does not establish suitability for pregnancy; buyers should seek clinician guidance.
Pros:- Combines L-methylfolate with methylcobalamin B12
- Sublingual liquid format offers an alternative to capsules and tablets
- Cherry flavor is specified
- Provides a stated 1 mg folate dose
Cons:- The amount of B12 is not specified in the supplied product details
- Liquid format may be less convenient for people who prefer solid supplements
- Combined formula makes it harder to adjust folate and B12 separately
Best for: Adults who prefer a flavored sublingual liquid and want methylfolate combined with methylcobalamin B12.
Not ideal for: Buyers who need a clearly stated B12 amount, prefer tablets or capsules, or want a single-ingredient methylfolate product.
- Active folate form:L-methylfolate (5-MTHF)
- Folate dose:1 mg (1,000 mcg)
- B12 form:Methylcobalamin
- B12 amount:Not specified in the supplied product details
- Delivery form:Sublingual liquid
- Flavor:Cherry
Our verdict“Pick this liquid if you want methylfolate and methyl B12 together, but skip it if you need the B12 amount clearly disclosed.”
Thorne 5-MTHF 1 mg Methylfolate Vitamin B9 Supplement, 60 Capsules
Thorne’s strongest distinction here is its stated four rounds of testing, covering raw-material purity through finished-formula shelf-life confirmation. That gives quality-focused shoppers more testing detail than the NOW product listing, which instead names NPA A-rated GMP certification. Both provide a 1 mg methylfolate serving, so the choice comes down less to dose and more to the quality information and format each buyer prefers. Thorne uses capsules and supplies 60 per bottle, fewer than NOW’s 90 tablets. The key limitation is that the supplied details do not identify capsule ingredients or common-allergen status, so buyers with dietary restrictions may have unanswered questions. This is a focused B9 formula, not a combined methylfolate-and-B12 option like the cherry liquid.
Pros:- Provides bioactive 5-MTHF at a 1 mg strength
- Four rounds of testing are described
- Testing includes raw-material purity and finished-formula shelf-life checks
- Capsule format differs from the tablet and liquid choices in this group
Cons:- Bottle contains 60 capsules, fewer than NOW’s 90 tablets
- Capsule ingredients and common-allergen information are not specified
- Does not include the methyl B12 found in the cherry-flavored liquid
Best for: Shoppers who want a 1 mg 5-MTHF capsule and value stated testing at multiple production stages.
Not ideal for: People who need allergen or capsule-ingredient details before buying, want a larger bottle, or prefer a liquid format.
- Active ingredient:5-MTHF (methylfolate)
- Vitamin:B9
- Strength:1 mg
- Form:Capsules
- Quantity:60 capsules
- Testing:Four rounds, from raw-material purity checks through finished-formula shelf-life confirmation
Our verdict“Choose Thorne if multi-stage testing information matters more to you than a larger bottle or an added B12 ingredient.”
Nutricost L-Methylfolate 15 mg, 120 Capsules
Nutricost is the highest-strength choice among the products with a specified dose here, at 15 mg per serving—a substantial step up from the 1 mg servings in NOW and Thorne. That makes it relevant to shoppers whose clinician has recommended this strength, not a default pick for someone simply seeking a routine folate supplement. Its vegan, gluten-free capsules and 120-count bottle add practical appeal, while third-party testing by ISO-accredited laboratories offers a distinct quality detail compared with Thorne’s stated four testing rounds. Those descriptions are not directly interchangeable measures, however. The supplied product information does not state capsule ingredients or the number of servings, and the high dose limits its fit for buyers seeking a lower-strength starting point.
Pros:- Provides a clearly stated 15 mg serving
- 120 capsules per bottle
- Vegan and gluten-free
- Third-party tested by ISO-accredited laboratories
Cons:- 15 mg is much higher than the 1 mg servings from NOW and Thorne
- Supplied details do not state capsule ingredients or servings per bottle
- High-strength format may not suit buyers seeking a lower-dose option
Best for: Adults whose clinician has recommended a 15 mg L-methylfolate serving and who want a vegan, gluten-free capsule.
Not ideal for: People seeking a 1 mg option, those who have not established a need for a high-strength serving, or shoppers needing ingredient details beyond the stated dietary features.
- Ingredient:L-methylfolate (5-MTHF)
- Serving amount:15 mg
- Capsules per bottle:120
- Dietary features:Gluten-free, vegan
- Manufacturing:NSF-certified GMP-compliant facility
- Quality testing:Third-party testing by ISO-accredited laboratories
Our verdict“Consider Nutricost when a clinician has recommended 15 mg and its vegan, gluten-free capsule format suits your needs.”
MethylPro L-Methylfolate 15 mg, 5-MTHF Supplement, 90 Capsules
MethylPro matches Nutricost’s 15 mg 5-MTHF strength, but its clearest point of difference is the long list of excluded ingredients: gluten, dairy, soy, corn, nuts, egg, shellfish, fish, sesame, and yeast. That makes it the more informative choice for buyers screening for those specific allergens, while Nutricost supplies details about vegan and gluten-free status plus third-party testing. MethylPro’s supplied data do not include comparable testing or manufacturing information, so quality-focused buyers may prefer Nutricost’s more explicit disclosures. The 15 mg serving is described as professional-strength; it is not the natural fit for someone looking for a modest 1 mg dose like NOW or Thorne. With 90 capsules, its bottle count also falls below Nutricost’s 120.
Pros:- Provides 15 mg of active methylated folate (5-MTHF) per serving
- Free from a broad set of listed allergens and ingredients
- Capsule format
- Product description identifies methylfolate as supporting methylation and nervous system health
Cons:- Professional-strength 15 mg dose is far above the 1 mg NOW and Thorne options
- 90 capsules, compared with Nutricost’s 120
- Supplied product details do not state third-party testing or manufacturing certifications
Best for: Adults advised to use 15 mg 5-MTHF who need a formula explicitly free from several listed allergens.
Not ideal for: People seeking a lower-strength serving, shoppers who want stated third-party testing details, or buyers who do not need allergen exclusions.
- Active ingredient:L-methylfolate (5-MTHF)
- Amount per serving:15 mg
- Servings:90
- Form:Capsules
- Free from:Gluten, dairy, soy, corn, nuts, egg, shellfish, fish, sesame, and yeast
Our verdict“Choose MethylPro over Nutricost if you need a 15 mg serving and its extensive allergen exclusions address your specific dietary needs.”
Jarrow Formulas Extra Strength Methyl Folate, 400 mcg, 60 Veggie Capsules
Jarrow Formulas stands out for shoppers who want 400 mcg of active 5-MTHF in a simple once-daily capsule. Its dose is lower than Nutricost Methylfolate 1,000 mcg, making it a more conservative option for people whose clinician recommends a smaller amount or who prefer not to start with a milligram-level serving. The vegan, gluten-free capsule and listed exclusions for common allergens also help narrow ingredient concerns. The tradeoff is that 400 mcg may not match an individual care plan, and the bottle contains 60 capsules rather than the larger counts offered by several other picks. I’d choose it for its modest dose and clear dietary details, not for dose flexibility or high capacity.
Pros:- Provides 400 mcg of folate in active 5-MTHF form
- Vegan veggie capsules
- Gluten-free and non-GMO
- Lists exclusions for several common allergens
Cons:- The 400 mcg amount may not match an individual’s needs
- The 60-capsule bottle is smaller than several 120- or 240-count options
- Does not include vitamin B12
Best for: Adults seeking a lower-dose 5-MTHF capsule with vegan ingredients and listed exclusions for common allergens, when the amount fits their clinician’s guidance.
Not ideal for: Shoppers whose clinician has recommended a higher dose, or anyone wanting a larger bottle or a folate-and-B12 combination.
- Brand:Jarrow Formulas
- Folate form:Methylfolate (5-MTHF)
- Amount per capsule:400 mcg
- Form:Veggie capsules
- Quantity:60 capsules
- Suggested use:Adults: one capsule daily, with or without food, or as directed by a healthcare professional
- Dietary attributes:Vegan, non-GMO, gluten-free
- Allergen information:No wheat, soybeans, dairy, egg, fish, shellfish, peanuts, tree nuts, or sesame
Our verdict“Choose Jarrow Formulas if you want a straightforward, lower-dose 5-MTHF capsule and 400 mcg suits your care plan.”
L-Methylfolate 7.5 mg with Methyl B12 Supplement
This formula pairs 7.5 mg of 5-MTHF calcium salt with methylcobalamin, so it suits buyers whose care plan calls for both nutrients in one product. That combination sets it apart from Jarrow Formulas Extra Strength Methyl Folate, which provides 400 mcg and no B12; the two options serve very different dose preferences rather than being interchangeable. Third-party lab testing, Clean Label Project certification, and cGMP manufacturing in the USA offer useful production details. The main drawback is the substantial 7.5 mg folate amount, which may be more than some shoppers want or need. Product information here also does not specify capsule count or serving directions, making it harder to compare day-to-day convenience with options that state those details.
Pros:- Combines 5-MTHF calcium salt with methylcobalamin B12
- Third-party lab tested
- Clean Label Project certified
- Made in the USA in cGMP facilities
Cons:- The 7.5 mg folate dose may not suit every user
- Capsule count and serving directions are not provided in the supplied product data
- Combines B12 with folate, which may not fit buyers seeking folate alone
Best for: Adults whose healthcare professional has recommended a 7.5 mg L-methylfolate dose alongside methylcobalamin B12 and who value stated testing and certification.
Not ideal for: People seeking a low-dose starting point, a folate-only supplement, or clearly stated capsule count and daily directions.
- L-methylfolate:7.5 mg
- Folate form:5-MTHF calcium salt
- Vitamin B12 form:Methylcobalamin
- Testing:Third-party lab tested
- Certification:Clean Label Project certified
- Manufacturing:Made in the USA in cGMP facilities
Our verdict“Pick this combination only if a 7.5 mg 5-MTHF dose plus methylcobalamin matches your clinician’s recommendation.”
NatureBell Methyl Folate 15 mg, 240 Capsules
NatureBell combines a 15 mg L-methylfolate serving with vitamin B12 and supplies 240 vegetarian capsules, making it a high-capacity option for shoppers whose established regimen calls for this dose. Compared with the 15 mg softgel formula with B6 and methyl B12, NatureBell is the simpler capsule-based pairing: its listed ingredients include B12, but the product data does not specify the B12 form or amount, and it does not list B6. Third-party testing and exclusions for gluten, dairy, soy, and eggs add useful selection details. The key tradeoff is the high folate amount, which makes this a poor fit for casual experimentation or anyone seeking a lower-dose product. The supplied details also omit serving directions and B12 specifics.
Pros:- Provides 15 mg of L-methylfolate per capsule
- Includes vitamin B12
- 240 vegetarian capsules per bottle
- Third-party tested and free from gluten, dairy, soy, and eggs
Cons:- The 15 mg dose may be unsuitable for people without a matching care plan
- B12 amount and form are not specified in the supplied data
- Serving directions are not provided
Best for: Adults with a clinician-directed 15 mg L-methylfolate regimen who want a vegetarian capsule, included B12, and a 240-capsule supply.
Not ideal for: Beginners, shoppers seeking a lower dose, or buyers who need the B12 amount and form stated before choosing a combination.
- Supplement:L-methylfolate
- L-methylfolate per capsule:15 mg
- Vitamin B12:Included; amount and form not specified
- Capsule count:240
- Capsule type:Vegetarian
- Testing:Third-party tested
- Dietary attributes:Non-GMO, gluten-free, dairy-free, soy-free, egg-free
Our verdict“Choose NatureBell for a high-count 15 mg capsule with B12 when that dose is already part of your care plan.”
L-Methylfolate 15 mg with Vitamin B6 and Methyl B12, 240 Softgels
This pick is for buyers who want more than folate: each two-softgel serving supplies 15 mg L-methylfolate, 1,000 mcg methylcobalamin, and vitamin B6 as pyridoxine HCl. That makes it a broader formula than NatureBell Methyl Folate 15 mg, which lists B12 but not B6 or the B12 amount and form. The 240-count pouch gives 120 servings, so the serving size matters: this is not a one-softgel-a-day format. Coconut oil is included in the softgels, and the product is made without soy, dairy, or gluten, with ingredients undergoing third-party lab testing. Its tradeoffs are the high folate dose, the two-softgel serving, and the use of pyridoxine HCl rather than another B6 form.
Pros:- Combines 15 mg active L-methylfolate with methylcobalamin B12 and vitamin B6
- Provides 1,000 mcg methylcobalamin per serving
- 240 softgels provide 120 two-softgel servings
- Non-GMO and made without soy, dairy, or gluten; ingredients undergo third-party testing
Cons:- Requires two softgels per serving
- The 15 mg folate dose may not suit every user
- Uses pyridoxine HCl as its vitamin B6 form
Best for: Adults whose clinician recommends 15 mg L-methylfolate with methyl B12 and B6, and who prefer a combined softgel formula.
Not ideal for: People who need a lower folate dose, want a one-capsule serving, or prefer to avoid pyridoxine HCl.
- Form:Softgels
- Count:240 softgels
- Serving size:2 softgels
- Servings per pouch:120
- L-methylfolate per serving:15 mg (25 mg DFE)
- Vitamin B12 per serving:1,000 mcg as methylcobalamin
- Vitamin B6 form:Pyridoxine HCl
- Other ingredient:Coconut oil
- Dietary attributes and testing:Non-GMO; made without soy, dairy, or gluten; ingredients undergo third-party lab testing
Our verdict“Choose this softgel if your care plan calls for 15 mg L-methylfolate plus specified amounts of methyl B12 and B6.”
Nutricost Methylfolate 1,000 mcg, 120 Vegetarian Capsules
Nutricost hits a useful middle ground with 1,000 mcg of methylfolate in one vegetarian capsule and 120 servings per bottle. It offers more folate per capsule than Jarrow Formulas Extra Strength Methyl Folate at 400 mcg, while stopping well below the 7.5 mg and 15 mg options in this lineup. That makes the dose easier to compare for shoppers seeking a milligram-level, folate-only product, though it still needs to match individual guidance. Third-party testing, a GMO-free and gluten-free formulation, and an NSF-certified, GMP-compliant, FDA-registered manufacturing facility provide more production detail than the supplied Jarrow data. The formula does not include B12, and the product information does not specify the exact methylfolate salt or other ingredient exclusions.
Pros:- Provides 1,000 mcg methylfolate per capsule
- 120 vegetarian capsules per bottle
- GMO-free and gluten-free
- Third-party tested and made in an NSF-certified, GMP-compliant, FDA-registered facility
Cons:- Does not include vitamin B12
- The 1,000 mcg amount may not match every individual’s needs
- The supplied data does not specify the exact folate form or broader allergen exclusions
Best for: Adults looking for a 1,000 mcg folate-only capsule in a 120-count vegetarian bottle, when that amount fits their healthcare guidance.
Not ideal for: Shoppers who need B12 included, prefer a lower amount like Jarrow’s 400 mcg capsule, or want the precise folate form and broader allergen details stated.
- Serving size:1 capsule
- Methylfolate per serving:1,000 mcg
- Servings per container:120
- Capsule type:Vegetarian
- Dietary features:GMO-free, gluten-free
- Testing:Third-party tested
- Manufacturing facility:NSF certified, GMP compliant, FDA registered
Our verdict“Choose Nutricost for a 120-count, 1,000 mcg vegetarian capsule if you want folate alone and that amount suits your care plan.”
Carlyle L-Methylfolate 15 mg, 120 Vegetarian Capsules
15 mg per serving makes this Carlyle option a fit for buyers specifically seeking a high-strength formula, rather than someone looking for a modest daily amount. Its vegetarian capsules and stated exclusions for gluten, wheat, yeast, lactose, and soy give it a clearer dietary profile than the less-detailed L-Methylfolate 15 mg with Methyl B12 Cofactor, whose description does not list capsule or allergen details. Carlyle also reports laboratory testing and a non-GMO formula, though the supplied information does not explain the testing methods or results. The tradeoff is that this is a single-ingredient product: unlike the B12 combination, it does not provide a methylcobalamin cofactor. Its 15 mg strength is also not the most flexible choice for shoppers seeking a lower-dose product.
Pros:- Provides 15 mg of L-methylfolate per serving
- Vegetarian capsule format
- Listed free of gluten, wheat, yeast, lactose, soy, artificial flavors, and preservatives
- Non-GMO and described as laboratory tested
Cons:- High 15 mg strength may not suit buyers seeking a lower-dose supplement
- Does not include B12 or another listed cofactor
- Testing methods and results are not detailed in the supplied information
Best for: Adults whose clinician has recommended a 15 mg L-methylfolate supplement and who want vegetarian capsules with several listed allergen exclusions.
Not ideal for: Shoppers seeking a lower-strength starting option or a formula that includes methylcobalamin B12.
- L-methylfolate per serving:15 mg
- Folate amount:25,000 mcg
- Form:Vegetarian capsules
- Quantity:120 capsules
- Dietary exclusions:Gluten, wheat, yeast, lactose, soy, artificial flavors, and preservatives
- GMO status:Non-GMO
- Testing:Laboratory tested
Our verdict“Choose this Carlyle formula if you need a clinician-directed 15 mg dose and prefer a vegetarian capsule without several listed allergens.”
L-Methylfolate 15 mg with Methyl B12 Cofactor
This formula pairs 15 mg of L-methylfolate with methylcobalamin B12, making it the combination choice among these high-strength options. That pairing is its main distinction from Carlyle L-Methylfolate 15 mg, which supplies the same listed folate amount but does not list B12. The description identifies the folate as 5-MTHF calcium salt and presents the formula for methylation and other functions, but those statements do not establish a guaranteed health outcome. The supplied product details also leave practical questions unanswered: serving size, dosage instructions, capsule count, and excipients are not specified. Compared with the clearly counted Carlyle bottle, this makes it harder to judge day-to-day convenience and supply length. I would favor it for the combined ingredients, not for shoppers who need detailed label information before choosing.
Pros:- Combines 15 mg L-methylfolate with methylcobalamin B12
- Identifies the folate form as 5-MTHF calcium salt
- Provides a combination option compared with Carlyle’s single-ingredient 15 mg formula
Cons:- Serving size and dosage instructions are not specified in the supplied details
- Capsule count and dietary exclusions are not provided
- The 15 mg strength may not fit shoppers seeking a lower dose
Best for: Adults whose clinician has recommended high-strength L-methylfolate with methylcobalamin and who have confirmed the product’s serving and ingredient details.
Not ideal for: First-time methylfolate shoppers or buyers who need a clearly stated serving size, dosage directions, capsule count, or allergen profile.
- L-methylfolate:15 mg
- Folate form:5-MTHF calcium salt
- Vitamin B12 form:Methylcobalamin
- Serving size:Not specified in supplied product data
- Dosage instructions:Not specified in supplied product data
- Capsule count:Not specified in supplied product data
Our verdict“Pick this combination only if you want clinician-directed 15 mg L-methylfolate with methyl B12 and can verify the missing label details.”
Carlyle L-Methylfolate 7.5 mg, 60 Capsules
At 7.5 mg per serving, this Carlyle product sits between the 1,000 mcg choices and the 15 mg Carlyle formula, giving it a distinct middle-strength role. The quick-release capsule format and listed exclusions for gluten, wheat, yeast, lactose, soy, artificial flavors, and preservatives may appeal to shoppers who want a simple formula without those ingredients. Carlyle also describes it as non-GMO and laboratory tested. Compared with the 1,000 mcg Carlyle product, this delivers a substantially larger listed amount per serving; compared with Carlyle’s 15 mg version, it is the less concentrated option. The tradeoff is that the listing gives limited formulation detail beyond the active amount and capsule format, and the 60-capsule count is smaller than the 120-capsule 15 mg bottle. It is not a beginner-dose substitute for a lower-strength product.
Pros:- Provides 7.5 mg L-methylfolate per serving
- Quick-release capsule format
- Listed free of gluten, wheat, yeast, lactose, soy, artificial flavors, and preservatives
- Non-GMO and described as laboratory tested
Cons:- Higher strength than the 1,000 mcg options in the roundup
- Only 60 capsules, compared with 120 in Carlyle’s 15 mg bottle
- Supplied details do not identify capsule ingredients or testing methods
Best for: Adults whose clinician has recommended 7.5 mg L-methylfolate and who prefer a quick-release capsule with several stated dietary exclusions.
Not ideal for: Shoppers looking for a low-dose introduction, a B12 combination, or more detail about capsule ingredients and formulation.
- L-methylfolate per serving:7.5 mg
- Folate amount:12,500 mcg
- Form:Quick-release capsules
- Capsule count:60
- Dietary exclusions:Gluten, wheat, yeast, lactose, soy, artificial flavors, and preservatives
- GMO status:Non-GMO
- Testing:Laboratory tested
Our verdict“Choose this mid-strength Carlyle option when 7.5 mg has been recommended and a lower amount than the brand’s 15 mg formula is preferred.”
Methylfolate 1,000 mcg Active L-5-MTHF, 120 Servings
This product offers 1,000 mcg of active L-5-MTHF per serving, a lower-strength alternative to Carlyle’s 7.5 mg and 15 mg products. That makes its listed dose easier to distinguish for shoppers who do not want a high-strength formula, although personal suitability still depends on individual needs and medical advice. The product states that it is vegetarian, non-GMO, and gluten-free, and reports U.S. manufacturing plus testing for microbes and heavy metals. Those testing details are more specific than the general laboratory-testing claim on the Carlyle products, though no results or testing standards are included here. The main gap is format: the supplied description does not say whether this is a capsule, tablet, or another form, so it is harder to judge swallowing convenience and serving routine. It also does not list other allergen exclusions.
Pros:- Provides 1,000 mcg of active L-5-MTHF per serving
- Vegetarian, non-GMO, and gluten-free
- Reports testing for microbes and heavy metals
- States that it is manufactured and tested in the USA
Cons:- Product form is not specified in the supplied data
- No allergen exclusions beyond gluten-free are listed
- Testing results and standards are not provided
Best for: Shoppers seeking a 1,000 mcg active-form serving with vegetarian, non-GMO, and gluten-free dietary features.
Not ideal for: Buyers who need a stated capsule or tablet format, a detailed allergen list, or a higher dose specifically recommended by a clinician.
- Active ingredient:Methylfolate (L-5-MTHF)
- Serving strength:1,000 mcg
- Servings:120
- Dietary features:Vegetarian, non-GMO, gluten-free
- Manufacturing:Manufactured and tested in the USA
- Testing:Tested for microbes and heavy metals
Our verdict“Choose this if you want a clearly stated 1,000 mcg active-form serving and value the listed manufacturing and contaminant-testing details.”
Carlyle L-Methylfolate 1000 mcg, 200 Capsules
For buyers settled on a 1,000 mcg serving, Carlyle’s 200-capsule bottle offers a larger supply than the 120-serving Methylfolate 1,000 mcg Active L-5-MTHF product. Its specific capsule count and per-capsule amount make the routine straightforward to understand. The formula is listed as gluten-free and non-GMO, with no wheat, yeast, milk, lactose, soy, artificial colors, or artificial flavors; manufacturing in a GMP-certified facility is also stated. Compared with the other 1,000 mcg option, however, this listing does not specify L-5-MTHF as the form or report testing for microbes and heavy metals. It is a single-ingredient choice based on the supplied details, so shoppers wanting methyl B12 in the same product should look elsewhere. The bigger bottle is less compelling if you are still deciding whether this strength suits you.
Pros:- Provides 1,000 mcg per capsule
- 200-capsule bottle offers a larger stated supply than the 120-serving 1,000 mcg alternative
- Listed free of wheat, yeast, milk, lactose, soy, artificial colors, and artificial flavors
- Gluten-free, non-GMO, and made in a GMP-certified facility
Cons:- Supplied details do not specify the folate form as L-5-MTHF
- Does not include listed methyl B12
- The large bottle may be a poor fit for shoppers still deciding on dose or tolerance
Best for: Regular users who have settled on 1,000 mcg L-methylfolate and prefer a 200-capsule supply with several listed ingredient exclusions.
Not ideal for: New users who want a smaller supply, buyers seeking a listed methyl B12 cofactor, or shoppers who prioritize explicit L-5-MTHF and contaminant-testing details.
- Serving amount:1,000 mcg per capsule
- Form:Capsules
- Quantity:200 capsules
- Dietary features:Gluten-free, non-GMO
- Free from:Wheat, yeast, milk, lactose, soy, artificial colors, and artificial flavors
- Manufacturing:Made in a GMP-certified facility
Our verdict“Choose Carlyle’s 200-capsule bottle if you already want 1,000 mcg per capsule and value a larger supply over extra form and testing details.”
How We Picked
I compared these 15 products on factors that change the buying decision: labeled L-methylfolate amount per serving, whether the formula is single-ingredient or includes other nutrients, dosage form, and stated serving count. I gave more weight to products with a clear, easy-to-compare dose and a straightforward formula for general use; lower-dose and high-dose options were judged by how clearly they serve distinct needs rather than treated as interchangeable. A liquid or combination formula can be a better fit for a particular routine, but it is not automatically a better pick for everyone.
The order reflects versatility and dose clarity first, followed by how well each product’s format and added ingredients suit a defined buyer. That puts a moderate-dose standalone option ahead of products that make a narrower high-dose or combination choice. I also account for tradeoffs: a product may offer many servings but less flexibility, or a convenient format but additional ingredients. These rankings compare the supplied product details, not clinical effectiveness or individual suitability; I do not treat dose strength as proof of better results.
| L-methylfolate supplement | Form |
|---|---|
| NOW Supplements Methyl Folate | Tablets |
| Organic Methylfolate 1000 mcg | — |
| Thorne 5-MTHF 1 mg Methylfolat | Capsules |
| Nutricost L-Methylfolate 15 mg | — |
| MethylPro L-Methylfolate 15 mg | Capsules |
| Jarrow Formulas Extra Strength | Veggie capsules |
| L-Methylfolate 7.5 mg with Met | — |
| NatureBell Methyl Folate 15 mg | — |
| L-Methylfolate 15 mg with Vita | Softgels |
| Nutricost Methylfolate 1,000 m | — |
| Carlyle L-Methylfolate 15 mg | Vegetarian capsules |
| L-Methylfolate 15 mg with Meth | — |
| Carlyle L-Methylfolate 7.5 mg | Quick-release capsules |
| Methylfolate 1,000 mcg Active | — |
| Carlyle L-Methylfolate 1000 mc | Capsules |
Factors to Consider When Choosing Best L-methylfolate Supplements
Choosing among L-methylfolate products is easiest when I start with the intended dose and formula, then check whether the format fits daily use. These are broader decision points that can prevent a mismatch beyond the differences between individual products.
Match the dose to a plan, not a bigger-is-better instinct
This lineup ranges from 400 mcg to 15 mg, a difference large enough that the products should not be treated as equivalent versions of the same supplement. Check whether the label states the amount per capsule, tablet, dropper, or serving, and compare that with the instructions from your clinician. A large number on the front label does not establish that a formula is more suitable for you. Choosing a high-dose product simply because it appears stronger can reduce your ability to make small adjustments. If you have not been advised to take a particular dose, ask a qualified health professional before choosing among these strengths.
Decide whether you want methylfolate alone or a combination
Standalone products make it easier to manage methylfolate separately from other nutrients, while formulas with methyl B12 or B6 bundle ingredients into one routine. That convenience can be useful if those added nutrients are already part of your plan. It can also create duplication if another multivitamin or supplement contains the same ingredients. Check the full label rather than relying on the product name, and compare each nutrient’s amount with your existing routine. A combined product is not automatically more complete; it is simply less flexible when you want to change one ingredient without changing the others.
Choose a form you can take consistently
Capsules and tablets are familiar options, but the lineup also includes softgels and a cherry-flavored sublingual liquid. The best format is the one that fits your swallowing preferences, schedule, and label directions. Liquid products may involve measuring a serving, so check how the amount is delivered and whether the directions match your routine. Softgels and flavored liquids may include extra ingredients that matter to people avoiding particular additives. Do not assume that a sublingual label makes a product better for every buyer; compare the actual dose and directions before choosing based on format alone.
Compare servings, not just bottle counts
A bottle listing 240 capsules may look like a long-lasting option, but the useful comparison is servings per container at the labeled serving size. Some products may call for more than one capsule per serving, and high-dose products are not directly comparable with lower-dose ones by capsule count alone. Review suggested use, the amount per serving, and whether the product’s dose matches your plan. A longer supply can be less convenient if the strength is not right for you. Treat count as a practical detail after dose and directions, not as a stand-in for suitability.
Check the full label for allergens and other ingredients
Product titles highlight methylfolate and sometimes B vitamins, but the complete ingredient panel gives the more useful picture. Check for capsule materials, flavorings, sweeteners, and other listed ingredients that may matter to your preferences or dietary needs. Terms such as vegetarian or veggie capsule can help narrow choices, but they do not answer every question about a formula. If you have an allergy, take medication, or have a health condition, review the label with a pharmacist or clinician rather than relying on the front label. This extra check can rule out a poor fit before bottle count or format becomes the deciding factor.
Know when to ask a clinician before buying
L-methylfolate supplements vary widely in strength, and a self-selected product may not match an individual’s medical or nutritional needs. Speak with a qualified clinician or pharmacist if you are considering a 15 mg product, are pregnant or planning pregnancy, take prescription medication, or have been told to manage folate or B-vitamin intake. Bring the labels of supplements you already use so they can check for overlapping nutrients. Do not use a supplement label as a substitute for evaluating symptoms or a diagnosed condition. Professional guidance is especially helpful when choosing between a standalone product and a formula that adds B12 or B6.
Frequently Asked Questions
How do I choose between a 1 mg and a 15 mg L-methylfolate supplement?
Start with the dose recommended for your situation, not with the highest amount available. In this roundup, 1 mg products and 15 mg products serve very different dose ranges, so they are not simple substitutes. Check whether the amount is listed per serving and follow the product directions alongside professional guidance. If you are unsure which strength applies to you, ask a clinician or pharmacist before buying. A larger dose should not be treated as a shortcut to better results.
Should I choose a formula that includes methyl B12 or B6?
A combination can simplify a routine when the added nutrients are part of your plan, but it makes it harder to adjust each ingredient separately. Check the amount of B12 or B6 on the label and compare it with other supplements you take. This is especially relevant if a multivitamin or another B-complex product is already in your routine. A standalone methylfolate product may be a better match when you want control over each nutrient. Ask a health professional if you are unsure whether the added ingredients are appropriate for you.
Is a sublingual liquid a better choice than a capsule or tablet?
Not necessarily; the main difference is how the product fits your routine and preferences. A liquid may suit someone who dislikes swallowing pills, while capsules or tablets may be simpler to carry and measure. Check the liquid’s serving directions and how its dose is delivered rather than assuming the format changes which strength you need. Flavored or liquid products may also contain ingredients that are not present in a simpler capsule. Choose based on usability and label details, not format claims alone.
Can I compare products by the number of capsules or servings in the bottle?
Use bottle count as a secondary comparison, because servings can vary by serving size and dose. A bottle with more capsules may still provide fewer servings if the directions call for multiple capsules at a time. Compare the labeled amount per serving, suggested use, and servings per container together. Also check whether the dose is the one you intend to take; a large supply of the wrong strength is not useful value. If the label does not make serving information clear, choose a product with details you can readily verify.
Can I start a high-dose L-methylfolate supplement without medical advice?
It is sensible to consult a qualified health professional before starting a high-dose product, particularly one labeled 7.5 mg or 15 mg. Your medical history, medications, and other supplements can affect which formula and dose make sense. Bring the full product label to a clinician or pharmacist so they can review added B vitamins and overlapping ingredients. Do not use a high dose to self-treat a symptom or condition. If a specific dose was prescribed or recommended, follow that guidance rather than substituting a different strength based on the product title.
Conclusion
For most shoppers comparing this lineup, Thorne 5-MTHF 1 mg is my best overall pick because its standalone moderate-dose format is easier to place in a routine than a high-dose or multi-nutrient formula. For value-oriented buyers, NatureBell Methyl Folate 15 mg offers a large capsule count, though it only makes sense if that high strength matches professional guidance; the lower-dose Nutricost 1,000 mcg is a more measured alternative. For a premium-style straightforward choice, Thorne is the clearest fit, while Jarrow’s 400 mcg option is my pick for beginners who want the lowest labeled dose in this group, subject to their clinician’s advice. For shoppers seeking a liquid or added B vitamins, compare the cherry-flavored sublingual and combination formulas, checking their complete labels before deciding. If you need a specific high dose, follow your clinician’s recommendation and select the product whose serving directions match it rather than choosing by bottle count.
