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60-DAY MONEY-BACK GUARANTEE  /  FREE SHIPPING ON EVERY ORDER60-DAY GUARANTEE · FREE SHIPPING
60-Day Money-Back GuaranteeFree Shipping on Every OrderThird-Party TestedActive Methylated FormsVegan & Non-GMOMade for Better Absorption
Methylcobalamin + L-5-MTHF + TMG · Glycerin base

Methylated B-Complex

Active coenzyme B vitamins in a USP vegetable glycerin base, no alcohol, no oil. Built for MTHFR. The same clean carrier trusted by Thorne and Pure Encapsulations, now in a liquid B-complex.

Active Coenzyme B Forms No Alcohol or Oil Third-Party Tested Made in the USA Vegan & Non-GMO
Methylcobalamin, not cyanocobalaminActive B12, body-ready on contact
USP glycerin base, not alcoholEthanol blocks B1/THTR-1 absorption
TMG methyl-donor cofactorSupports methylation directly
Built for MTHFR40-60% can’t convert folic acid

Shop methylated B-complex vitamins

3 products

METHL’s Liquid B-Complex delivers active coenzyme forms, methylcobalamin, L-5-MTHF, and P-5-P, in a clean USP vegetable glycerin base. No alcohol (ethanol blocks thiamine absorption). No oil (a barrier without benefit for water-soluble B vitamins). The same clean carrier used by Thorne, Pure Encapsulations, and Designs for Health, now with a TMG methyl-donor cofactor, formulated for the 40-60% with an MTHFR variant.

Active coenzyme forms, per 2 mL serving

What’s actually inside.

NutrientFormPer 2 mL
Thiamine (B1)Thiamine HCl2 mg
Riboflavin (B2)Riboflavin-5-Phosphate (R-5-P)2 mg
Niacin (B3)Niacinamide20 mg
Pantothenic Acid (B5)Calcium Pantothenate10 mg
Pyridoxine (B6)Pyridoxal-5-Phosphate (P-5-P)3 mg
Biotin (B7)D-Biotin300 mcg
Folate (B9)L-5-MTHF (Methylfolate)400 mcg DFE
Cobalamin (B12)Methylcobalamin500 mcg
TMG (Betaine)Trimethylglycine100 mg

Serving: 2 mL (2 full droppers). Other ingredients: USP vegetable glycerin, purified water.

Why USP vegetable glycerin, not alcohol or oil

Alcohol tinctures use ethanol as a preservative, but ethanol blocks thiamine (B1) by downregulating the intestinal thiamine transporter THTR-1, and acetaldehyde degrades pyridoxine (B6). Oil-based liposomal carriers encapsulate water-soluble B vitamins in a phospholipid shell, adding a barrier without meaningful benefit. METHL uses USP vegetable glycerin and purified water, the same clean carrier used in practitioner-grade liquids by Thorne, Pure Encapsulations, and Designs for Health.

Why the active forms matter

Coenzyme forms, no conversion.

Methylcobalamin B12

The active coenzyme form of B12. Cyanocobalamin must be converted in two steps; methylcobalamin is used directly for methylation, nerve repair and red blood cell production.

L-5-MTHF (Methylfolate)

The active folate your cells use directly. Folic acid requires the MTHFR enzyme to convert; 40-60% of people carry a variant that limits this step. 5-MTHF bypasses it entirely.

TMG Methyl-Donor Cofactor

Trimethylglycine donates methyl groups to support the methylation cycle, working alongside methylcobalamin and methylfolate to keep homocysteine in healthy range.

R-5-P (Active B2) & P-5-P (Active B6)

Riboflavin-5-Phosphate and Pyridoxal-5-Phosphate are the coenzyme forms of B2 and B6 your mitochondria use directly for energy metabolism, no conversion step.

The honest comparison

METHL vs the B-complex you have now.

What mattersStandard B-complexMETHL Liquid B-Complex
Methylcobalamin (active B12) Cyanocobalamin
L-5-MTHF (active folate) Folic acid
Works with MTHFR variant
USP glycerin base (no alcohol) Ethanol
TMG methyl-donor cofactor
Active B2 (R-5-P) & B6 (P-5-P)Rarely
Third-party testedRarely
No synthetic fillersCommon
Expert reviewed
★★★★★
“The glycerin-based delivery for a methylated B-complex is the right call. Ethanol tinctures compromise B1 absorption by downregulating THTR-1. METHL’s choice of active coenzyme forms, particularly methylcobalamin, L-5-MTHF, and P-5-P, with TMG as a cofactor, reflects a real understanding of how the methylation cycle works in practice.”
Dr. Rachel Simmons
Dr. Rachel Simmons Verified Expert
PhD, Nutritional Biochemistry
40%
of people carry an MTHFR variant that limits folic acid conversion
9
active B vitamins and cofactors per 2 mL serving
0
alcohol, oil, synthetic fillers or cyanocobalamin
Loved by real customers

People who finally feel it.

★★★★★
4.94 average · 16 verified reviews on Judge.me
★★★★★

“Absolutely the best vitamins I have ever taken. These vitamins are absolutely the best.”

Verified Juan Gomez
★★★★

“My doctor gave me a list of recommended vitamins for my neuropathy. Your product was recommended because it provides more of the vitamins than other products. Makes my daily routine easier.”

Verified Julie Weaver
★★★★★

“Well tolerated!”

Verified Shannon Stoller
Chris Santos, founder of METHL
Why I made this
“I looked at every B-complex on the market. Most had cyanocobalamin, folic acid, and an alcohol base. I wanted methylcobalamin, L-5-MTHF, and a clean glycerin carrier that wouldn’t interfere with the very nutrients it was supposed to deliver. That’s what METHL is.”
Chris Santos, Founder · METHL / Only Multivitamin
Shop with confidence

60-day money-back guarantee.

We’re confident you’ll feel the difference. If you’re not completely satisfied, return it within 60 days for a full refund. No questions asked.

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Take METHL Liquid B-Complex daily to experience the difference.

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Shop the B-Complex

Active coenzyme forms

Methylcobalamin, L-5-MTHF, P-5-P, R-5-P: the exact forms your cells use directly, no intermediate conversion step required.

Clean glycerin carrier

USP vegetable glycerin preserves B vitamins without ethanol, the same base used by Thorne and Pure Encapsulations.

Built for MTHFR

40-60% of people can’t efficiently convert cyanocobalamin or folic acid. METHL starts with the active forms, bioavailable for everyone.

The B-Complex difference

Methylated B-complex vitamins, explained.

A methylated B-complex delivers B vitamins in their active coenzyme forms, the versions your cells use directly without a conversion step. Most B-complex supplements use cyanocobalamin for B12 and folic acid for B9. Your body has to convert both before they are usable, a two-step process for B12 and an MTHFR-enzyme-dependent step for folate. METHL skips those steps: B12 as methylcobalamin and B9 as L-5-MTHF (methylfolate).

Why methylated B vitamins. An estimated 40-60% of people carry an MTHFR gene variant that limits the conversion of folic acid to usable methylfolate. For this group, a standard B-complex delivers the precursor but the body cannot fully process it. Methylated forms are bioavailable whether or not you carry the variant, a smart default for everyone.

Methylcobalamin vs cyanocobalamin. Cyanocobalamin is a cheap synthetic form of B12 that must be converted in two enzymatic steps before use. Methylcobalamin is the active coenzyme form: it participates directly in methylation reactions and myelin synthesis, no conversion required, and no cyanide group to clear.

Why glycerin instead of alcohol or oil. Most liquid B-complex products use an ethanol base. Ethanol downregulates THTR-1, the intestinal transporter for thiamine (B1), directly undermining one of the nutrients being delivered. Oil-based liposomal carriers were designed for fat-soluble compounds and add a barrier without benefit for water-soluble B vitamins. METHL uses a USP vegetable glycerin and purified water base, the same carrier used by Thorne, Pure Encapsulations, and Designs for Health.

What is TMG. Trimethylglycine (betaine) is a methyl-donor compound that donates methyl groups directly to the methylation cycle. When methylcobalamin and methylfolate support the methionine pathway, TMG acts as an independent backup methyl donor, helping maintain healthy homocysteine levels through the BHMT enzyme pathway. METHL includes 100 mg TMG per 2 mL serving as a cofactor alongside the full active B stack.

Which METHL is right for you? Start with the Liquid B-Complex Drops for targeted energy, mood and methylation support via active B vitamins. Add the Methylated Multivitamin for a full-spectrum daily foundation with 19 vitamins and minerals plus fermented organic greens. The Bundle pairs both at the best value. Every formula is made in the USA, third-party tested, vegan and non-GMO, with no synthetic fillers, backed by a 60-day money-back guarantee.

Questions, answered

The methylated B-complex FAQ.

What is a methylated B-complex? +

A methylated B-complex delivers B vitamins in their active coenzyme forms, methylcobalamin for B12 and L-5-MTHF for folate, plus coenzyme forms of B2 (R-5-P) and B6 (P-5-P). These are the versions your cells use directly, with no conversion step. Most standard B-complex supplements use cheaper synthetic precursors, cyanocobalamin and folic acid, that your body must convert before use. METHL skips that step.

Why methylated B vitamins? +

Methylated B vitamins are bioavailable regardless of your genetics. An estimated 40-60% of people carry an MTHFR gene variant that limits how efficiently they convert folic acid to usable methylfolate. For this group, a standard B-complex delivers the precursor but the body can’t fully process it. Methylated forms work for everyone, MTHFR or not, making them a smarter default for anyone who wants the B vitamins to actually arrive.

Methylcobalamin vs cyanocobalamin: what is the difference? +

Cyanocobalamin is a cheap synthetic form of B12 that must be converted in two enzymatic steps before your body can use it. It also contains a cyanide group your body must clear. Methylcobalamin is the active coenzyme form of B12: it participates directly in methylation reactions and myelin synthesis with no conversion required. METHL uses methylcobalamin exclusively.

Why glycerin instead of alcohol or oil in the B-complex? +

Ethanol tinctures are common in liquid supplements, but ethanol downregulates THTR-1, the intestinal thiamine transporter, directly reducing B1 absorption. Acetaldehyde from ethanol also degrades pyridoxine (B6). Oil-based liposomal carriers were engineered for fat-soluble nutrients and add a phospholipid barrier without meaningful benefit for water-soluble B vitamins. METHL uses USP vegetable glycerin and purified water, the same clean carrier used by Thorne, Pure Encapsulations, and Designs for Health.

What is TMG and why is it included? +

TMG (Trimethylglycine, or betaine) is a methyl-donor compound that supports the methylation cycle through the BHMT enzyme pathway, independent of the folate-B12 pathway. When methylcobalamin and methylfolate support the methionine cycle, TMG provides an additional methyl-donation route and helps maintain healthy homocysteine levels. METHL includes 100 mg TMG per 2 mL serving as a cofactor alongside the full active B stack.

How do I take the Liquid B-Complex? +

Shake well, then take 2 full droppers (2 mL) daily. You can take it straight, hold it under your tongue for a few seconds for sublingual absorption, or add it to water or juice. Morning with or without food works well; B vitamins support energy production so most people prefer them earlier in the day.

Can I take the B-Complex with the Methylated Multivitamin? +

Yes. They’re designed to work together, which is exactly what the Bundle is. The multivitamin covers your daily foundation with 19 active vitamins, minerals and fermented organic greens, while the liquid B-Complex adds a concentrated, fast-absorbing active B vitamin dose for energy, mood and methylation support.

When will I feel a difference? +

Most people notice steadier energy and clearer mood within 30 days of daily use, as consistent levels of the active B vitamins accumulate. Because these are coenzyme forms with no conversion step, they are available to your cells faster than standard precursor forms.

Is the B-Complex third-party tested? +

Yes. Every batch is independently tested for purity and potency. METHL is vegan, non-GMO, and made in the USA with no synthetic fillers or binders. The ingredient panel lists exactly what is in each 2 mL serving.

How does the subscription work? +

Subscribe and save 20% on every order. Your B-Complex ships on your schedule and you can pause, skip, or cancel anytime. Subscribe through Recharge at checkout.