BioStacks

Best Vitamin B6 for Liver

Top 9 products ranked

Last reviewed May 2026

Clinical dose: 25–100 mg

Why Vitamin B6 for Liver

Vitamin B6 plays a supporting role in liver. Active form is pyridoxal-5'-phosphate (P5P), a coenzyme involved in over 100 reactions including neurotransmitter synthesis and amino acid metabolism. Standard pyridoxine must be converted to P5P in the liver, while P5P supplements bypass this step.

What dose to look for

Clinical studies typically use 25–100 mg of vitamin b6. Common B-complex dose; UL is 100 mg/day. Products below this range may not deliver meaningful results.

What form to look for

Avoid pyridoxine — must be converted to active p5p. Look for pyridoxal-5-phosphate (p5p) for better absorption.

What the research says

Vitamin B6 has strong clinical evidence for liver benefits. Cofactor in 100+ enzymatic reactions including neurotransmitter synthesis; P5P form bypasses liver conversion Learn more

Clinical research on Vitamin B6 (Pyridoxine)

LOW for liver specifically — methylation cofactor without liver-specific evidence · 1.3–10 mg/day

•B6 is required for transamination reactions and amino acid metabolism in the liver. Deficiency is common in alcoholic liver disease but is a consequence, not a cause, of hepatic dysfunction.
•No RCTs support B6 supplementation for liver protection or NAFLD improvement in non-deficient adults. Included in many liver support formulas based on methylation pathway theory rather than clinical evidence.

See full Liver research →