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L-Methylfolate ™— Active 5-MTHF + Methyl B12

L-Methylfolate ™— Active 5-MTHF + Methyl B12

$22.99
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L-Methylfolate ™— Active 5-MTHF + Methyl B12

L-Methylfolate ™— Active 5-MTHF + Methyl B12

1031 reviews

America's #1 methylfolate. 15 mg of active 5-MTHF paired with methyl B12— the two pre-converted forms your body actually uses for steady mood, sharp focus, and lasting energy. No conversion required.

Already activated. Already absorbable. Most folate is folic acid — your body has to convert it. 5-MTHF is the active form, ready the moment it hits your bloodstream.

Folate and B12 work as a pair. Active folate without active B12 stalls. This formula delivers both in their finished forms.

A clinical 15 mg dose. Not a sprinkle. The dose published research actually uses.

#1 Best-Selling Methylfolate on Amazon

Mood

Focus

Brain

Energy

30-day guarantee

3rd-Party Tested

FSA/HSA Eligible

The 30-Day Feel-the-Difference Promise.

If you don't feel the lift in mood, focus, or energy your research told you a real clinical dose should deliver — send the bottle back for a full refund.

Key Ingredients

Two finished forms. Both ready the moment they hit your bloodstream.

🧬 L-Methylfolate (L-5-MTHF Calcium Salt) — 15 mg

The active, finished form of folate. No conversion required. 10× more absorbable than folic acid in MTHFR-variant cells.

💊 Methylcobalamin (Active B12) — 1,000 mcg

The bioidentical, pre-activated form of B12 your body uses directly. Supports the methylation cycle, healthy nerve function, and steady cellular energy.

Health Benefits

What complete methylation support means for how you feel and perform.

😌 Mood support

Folate supports the body's natural production of key neurotransmitters that influence mood, including serotonin, dopamine, and norepinephrine.

🎯Mental focus and cognitive function

Folate supports the brain's energy metabolism and the cellular pathways behind clear thinking.

⚡Cellular energy

Methylation is foundational to mitochondrial function and the body's natural ATP production.

⚖️Hormone metabolism

Folate supports the methylation pathways involved in the body's natural processing of hormones.

🛡️Healthy inflammatory response

Methylation is involved in the body's normal inflammatory signaling pathways.

❤️Heart health

Folate supports the body's normal homocysteine metabolism, which is involved in healthy cardiovascular function.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Ideal For

Who this formula is built for.

🤱 The mom running on fumes.

Carrying mental load, snapping at people you love, and never quite catching up on rest — even when you sleep.

🧠 The high-performer who can't focus anymore.

You used to think clearly. Now the words don't come, the afternoons drag, and you wonder when your brain stopped working the way it used to.

🔄 The person who's tried everything.

Folic acid, B-complex, multivitamins, adaptogens — none of it moved the needle. You're wondering if you're broken or if you've just been taking the wrong thing.

🧬 The one whose family has "the mental health stuff."

Anxiety, depression, mood swings, ADHD — patterns that run in the family. You've started to wonder if there's a common thread.

🥗 The clean eater who still feels off.

You eat the leafy greens. You take the prenatal. You do the cold plunge. And somehow your energy, mood, and focus still don't match the effort.

🧪 Anyone who's been told they have an MTHFR variant.

Or anyone who suspects they might. (1 in 2 adults carry it. Most never get tested.)

Supplement Facts
America's #1 Selling L-Methylfolate
America's #1 Selling L-Methylfolate
Over 5 Million Bottles Sold
Over 5 Million Bottles Sold
GMP Manufactured
GMP Manufactured
3rd-Party Tested
3rd-Party Tested
Clinically Dosed Formula
Clinically Dosed Formula
No Proprietary Blends
No Proprietary Blends
Formulated With Science Advisors
Formulated With Science Advisors
HSA/FSA Eligible
HSA/FSA Eligible
Backed by the 30 Day Feel-the-Difference Promise
Backed by the 30 Day Feel-the-Difference Promise
America's #1 Selling L-Methylfolate
America's #1 Selling L-Methylfolate
Over 5 Million Bottles Sold
Over 5 Million Bottles Sold
GMP Manufactured
GMP Manufactured
3rd-Party Tested
3rd-Party Tested
Clinically Dosed Formula
Clinically Dosed Formula
No Proprietary Blends
No Proprietary Blends
Formulated With Science Advisors
Formulated With Science Advisors
HSA/FSA Eligible
HSA/FSA Eligible
Backed by the 30 Day Feel-the-Difference Promise
Backed by the 30 Day Feel-the-Difference Promise

The Root Cause

Your body either converts folic acid into the active form. Or it doesn't.

The MTHFR gene controls the conversion. When it's altered, the folic acid goes in but theactive L-methylfolate formnever arrives. The mood, focus, and energy your body builds from that active form — never gets built.

The question isn't whether you're getting folate. It's whether your body can use the form you're getting.

What Folate Actually Does

Folate isn't just a B vitamin.

It's how your body builds the chemistry every system runs on.

Active folate is the molecule your body uses to build the chemistry behind a steady mood, a clear mind, balanced hormones, and the cellular energy that keeps every system running — every day, in every cell that runs on it.

Mood

That settles instead of spikes.

Folate builds the chemistry that keeps you steady.

Focus

That holds through the afternoon.

Folate fuels the clarity that lets you think.

Energy

That doesn't crash at 3 p.m.

Folate powers the cells that run your day.

Hormones

That keep their rhythm.

Folate helps the body process and balance hormone signaling.

Inflammation

That stays in check.

Folate supports the pathways that regulate inflammation.

Heart Health

That holds for the long run.

Folate supports the chemistry behind vascular function.

The Timeline

The first signal comes in days.

The real change takes weeks.

Methylation is a foundational system. When it has what it needs, the changes start quietly and compound across every domain it touches. Consistency matters more than intensity.

Days 1–7

The First Signal

The methylation cycle re-engages. Some notice early lifts in clarity or mood within the first week. Others don't — and that's normal.

Weeks 2–4

The Shift

Mood steadies. Mental noise quiets. The afternoon doesn't break your focus. The window most customers describe as "oh, it's working."

Weeks 8–12

The Settling-In Window

The early lift is now your baseline. Daily focus, mood, and energy patterns hold more consistently than they did before.

Months 3–6

Sustained Baseline

The new normal. Steady mood, sustained energy, clear thinking — not as a lift, but as a baseline. The methylation cycle, running the way it was built to.

Individual results vary. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

The Active Form

L-methylfolate is the form your body already uses.

No conversion. No bottleneck. Ready the moment it hits your bloodstream.

Most folate has to be converted before your cells can use it. L-methylfolate skips that step entirely. It's the same molecule your body would build folic acid into — handed to you already finished.

Hear From Our Experts

The L-Methylfolate Formula. That Actually Delivers

"L-Methylfolate is a critical nutrient for neurological and emotional health — especially for those with MTHFR variations. This formula stands out for its bioavailability, purity, and clinically relevant dosing."

Adriano Zanardi da Silva, M.Sc., Ph.D

Researcher · Methylation & nutritional biochemistry

Clinically dosed folate supports mood and brain function

"L-methylfolate helps your brain make serotonin, a chemical that helps you feel calm and happy. Meanwhile, methylcobalamin supports your nerves and helps turn food into energy your body uses every day."

Dr. Ann M. DiPaolo, DO

Family Medicine · 22 years in practice

L-methylfolate may help mood and sleep regulation

"L-methylfolate plays a role in making brain chemicals like dopamine and serotonin that influence sleep quality."

Dr. Nicolas Biassoto, MD

Family Medicine · 45 years in practice

The Complete Formula

Two molecules. Both pre-converted.

No conversion. No bottleneck. Ready the moment it hits your bloodstream.

Every ingredient earns its place. Every dose is on the label. No proprietary blends, no folic acid hiding under a B-vitamin label, no fairy-dust quantities.

Most folate supplements ship you the precursor and expect your body to do the conversion. This formula skips that step. The active forms, ready to use, in every dose.

The Active Form

L‑Methylfolate

L-5-MTHF Calcium Salt · 15 mg

The molecule your body builds folate into — already finished. No conversion step, no MTHFR dependency. The form your cells use directly, at the dose published research actually uses.

The Cofactor

Methyl­cobalamin

Active B12 · 1,000 mcg

Active folate needs active B12 to do its job. Methylcobalamin is the bioidentical form your body uses — no cyanocobalamin to convert, no synthetic step to slow it down.

The Proof

10× more active folate inside your cells.

Same dose. Different form.

Measured · Head-to-Head · Peer-Reviewed

A 2020 peer-reviewed study measured intracellular folate in cells with reduced MTHFR conversion — the genotype that affects up to 60% of adults.

Same nutrient on the label. Same dose. The cells that received L-methylfolate accumulated 10× more active folate than the cells that received folic acid.

Vidmar Golja et al., 2020 · Intracellular folate concentrations in MTHFR-variant cell models

The Cofactor

Active folate needs active B12.

Without both, the body can’t complete what folate started.

01

Folate hands the work to B12.

Folate carries one half of the job. Methyl B12 carries the other. Your body needs both molecules to turn folate into the energy, mood, and focus you can feel.

02

Methylfolate alone isn’t enough.

Even the best folate stops working if your body doesn’t have active B12 to pick up where folate left off. You end up with active folate sitting in your system — unused.

03

Not all B12 is the same.

Most B12 supplements use a synthetic form your body has to convert. Methyl B12 is the active form — already finished, already useable.

Methylfolate starts the work.

Methyl B12 finishes it.

The Science Advisors

Held to a higher standard.

Independent clinicians and scientists review our formulas — not to endorse them, but to challenge them.

Independent oversight.

Practicing clinicians and researchers review Xazint formulas against the published evidence — on an ongoing basis, in market, with real-world outcomes informing every cycle.

Reviewed against the published evidence.

Every dose, every form, every cofactor pairing is checked against the clinical literature. If the science doesn't support a claim, the claim doesn't ship.

This formula earns the scrutiny.

15 mg active 5-MTHF paired with methyl B12, no proprietary blends, no synthetic folic acid, no shortcuts on the cofactor side. Every ingredient and dose stands up to clinical review.

Advisors are compensated for their time and expertise, never for endorsement.

Quality Standards

Awarded for purity. Top of category.

Third-party tested against 200+ contaminants — and we passed every one.

Top of Category — Purity Award

Awarded by the Clean Label Project for the lowest detected contaminant levels among supplements tested in our category.

Tested for 200+ contaminants.

Every batch is third-party tested for heavy metals, pesticides, plasticizers, residual solvents, and microbial contaminants. The Purity Award confirms what testing already proves: this product is clean.

Made in a cGMP, FDA-regulated facility.

Manufactured in the United States under Current Good Manufacturing Practice standards — the same quality controls used across the most rigorous supplement operations.

No shortcuts on what goes in.

Only the active, bioavailable forms of every ingredient. No proprietary blends, no synthetic fillers, no folic acid or cyanocobalamin hiding under a B-vitamin label.

Frequently Asked Questions

Is this product safe if I'm pregnant or breastfeeding?

L-Methylfolate is the form many practitioners recommend during pregnancy and breastfeeding — but every pregnancy is different. Please share this product with your OB/GYN or midwife before starting, especially if you are taking a separate prenatal vitamin.

Are there any known side effects?

Most people tolerate L-Methylfolate well. A small number of people new to methylation support report transient symptoms in the first week (mild headache, irritability, or increased energy at night). Lowering the dose or taking it earlier in the day usually resolves it. If symptoms persist, stop the product and consult your practitioner.

Can this supplement interact with medications?

L-Methylfolate can interact with certain medications, including methotrexate, anticonvulsants, and some SSRIs. If you are currently on a prescription, please discuss with your prescribing provider before starting any new methylation support.

What is L-Methylfolate and how is it different from folic acid?

Folic acid is a synthetic form of folate that your liver has to convert into the active form (5-MTHF) before your body can use it. L-Methylfolate is already in that active form — no conversion needed. For people with a common MTHFR gene variation, that conversion is impaired, which is why an active 5-MTHF supplement is often a better fit.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.