Double Wood Methylated Multivitamin Review 2026: Review
It's actually fine. — Legitimate
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"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.
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"This is a complete multivitamin"
It contains only 6 B-related nutrients. No vitamin A, C, D, E, K, calcium, magnesium, zinc, or iron.
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"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.
Claims vs Evidence
MODEST4 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
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Research-backed dose: No established dose from provided studies
In this product: Dose not disclosed
Price & Value
FairDouble 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)
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