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Double Wood Methylated Multivitamin Review 2026: Review

It's actually fine. — Legitimate

  • "Methylated forms are better absorbed than standard vitamins"

    Methylfolate bypasses MTHFR conversion; methylcobalamin skips liver processing. Biochemistry supports this for people with variants.

    PubMed: Scaglione & Panzavolta 2014 (folate bioavailability review)
  • "Third-party tested for potency and contaminants"

    Double Wood publishes a Certificate of Analysis and third-party test results directly on the product page.

  • "This is a complete multivitamin"

    It contains only 6 B-related nutrients. No vitamin A, C, D, E, K, calcium, magnesium, zinc, or iron.

  • "Dibencozide supports cognitive function"

    Only 1 PubMed trial exists for dibencozide. No human evidence supports cognitive or performance benefits.

    PubMed: dibencozide search (1 indexed clinical trial as of knowledge cutoff)

Consumer advice

If you have an MTHFR gene variant or have been told you don't process folic acid well, this is a legitimate and reasonably priced option. However, don't mistake this for a complete multivitamin — you'll still need vitamin D, magnesium, zinc, and other nutrients separately. The company even acknowledges this by suggesting you combine it with a regular multivitamin. Check the supplement facts panel for exact doses before buying. Third-party testing is a genuine green flag here. If you're healthy with no known MTHFR issues, a standard B-complex from Thorne or Pure Encapsulations does essentially the same job at similar or lower cost.

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Claims vs Evidence

MODEST

4 of 6 claims supported by evidence.

"Methylated forms are already usable by the body without conversion" Supported

Active coenzyme forms skip conversion steps; well-established biochemistry

Based on: Riboflavin-5-Phosphate, Pyridoxal-5-Phosphate, Methylcobalamin, Dibencozide, Calcium L-5-MTHF

"Supports energy production and cellular function" Supported

B vitamins are essential cofactors in energy metabolism

Based on: Riboflavin-5-Phosphate, Pyridoxal-5-Phosphate, Methylcobalamin

"Supports healthy folic acid levels and controls homocysteine" Supported

Methylfolate and TMG both lower homocysteine; well-documented

Based on: Calcium L-5-MTHF, Trimethylglycine

"Especially beneficial for those with MTHFR gene mutation" Supported

MTHFR variants impair folic acid conversion; methylfolate bypasses this

Based on: Calcium L-5-MTHF, Methylcobalamin

"Supports cognitive function" Partial

B12 deficiency impairs cognition; benefit mainly in deficient individuals

Based on: Dibencozide, Methylcobalamin

"Aids protein processing" Partial

Adenosylcobalamin is a cofactor in amino acid metabolism; weak human data

Based on: Dibencozide

4 supported · 2 partial

Ingredients

Evidence: strong · moderate · weak · debunked

Based on peer-reviewed research from PubMed and Examine.com

Riboflavin-5-Phosphate (R-5-P)

B vitamin essential for energy metabolism. Most evidence in provided studies is for eye procedures, not oral supplements.

strong

Research-backed dose: No established dose from provided studies for general supplementation

In this product: not specified in page text (see supplement facts image)

Pyridoxal-5-Phosphate (P5P)

Essential B vitamin involved in neurotransmitter production. Limited direct evidence for most supplement claims.

strong

Research-backed dose: 1.4–80 mg/day depending on indication (no single established dose from provided studies)

In this product: not specified in page text (see supplement facts image)

Calcium L-5-Methyltetrahydrofolate (L-5-MTHF)

Essential mineral for bones and more, but the provided studies offer very limited direct evidence for supplements.

strong

Research-backed dose: No established dose from provided studies

In this product: not specified in page text (see supplement facts image)

Active form of B12. Supports nerve health, corrects deficiency, and may ease diabetic neuropathy symptoms.

moderate

Research-backed dose: 250–2000 mcg daily (oral); 50 mg intramuscular for ALS research only

In this product: not specified in page text (see supplement facts image)

Active form of B12 with very limited human research. Bodybuilding claims are not supported by evidence.

weak

Research-backed dose: No established dose (insufficient research data)

In this product: not specified in page text (see supplement facts image)

Trimethylglycine (TMG)

Amino acid found naturally in the body. Limited clinical evidence supports most supplement marketing claims.

weak

Research-backed dose: No established dose from provided studies

In this product: not specified in page text (see supplement facts image)

Riboflavin-5-Phosphate

B vitamin essential for energy metabolism. Most evidence in provided studies is for eye procedures, not oral supplements.

strong

Research-backed dose: No established dose from provided studies for general supplementation

In this product: Dose not disclosed

Pyridoxal-5-Phosphate

Essential B vitamin involved in neurotransmitter production. Limited direct evidence for most supplement claims.

strong

Research-backed dose: 1.4–80 mg/day depending on indication (no single established dose from provided studies)

In this product: Dose not disclosed

Active form of B12 with very limited human research. Bodybuilding claims are not supported by evidence.

weak

Research-backed dose: No established dose (insufficient research data)

In this product: Dose not disclosed

Calcium L-5-MTHF

Essential mineral for bones and more, but the provided studies offer very limited direct evidence for supplements.

strong

Research-backed dose: No established dose from provided studies

In this product: Dose not disclosed

Trimethylglycine

Amino acid found naturally in the body. Limited clinical evidence supports most supplement marketing claims.

weak

Research-backed dose: No established dose from provided studies

In this product: Dose not disclosed

Price & Value

Fair

Double Wood Methylated Multivitamin

$29.95 one-time / $23.96 subscribe

Thorne Basic B or Jarrow B-Right

Thorne Basic B ~$28 for 60 servings ($0.47/serving); Jarrow B-Right ~$18 for 100 servings ($0.18/serving)

Subscription: 20% off first order and recurring deliveries; 3% credits back; flexible delivery intervals (30/60/90/180 days); described as changeable anytime

Signals

  • Shows actual ingredient doses

Research sources: PubMed · Examine.com

Analyzed product: https://doublewoodsupplements.com/products/methylated-multivitamin

Analysis generated: 2026-05-01 · Engine v1.0.0