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Types of Vitamin B6 (Pyridoxine): Forms & Bioavailability

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Forms Comparison

FormBioavailabilityBest For
Pyridoxine HydrochlorideModerateGeneral supplementation — standard form, requires liver conversion to PLP
Pyridoxal-5-Phosphate (P-5-P)HighActive coenzyme form — no conversion needed, ideal for those with liver issues or MTHFR variants

Pyridoxine Hydrochloride

Bioavailability: Moderate. Best for: General supplementation — standard form, requires liver conversion to PLP.

Pyridoxal-5-Phosphate (P-5-P)

Bioavailability: High. Best for: Active coenzyme form — no conversion needed, ideal for those with liver issues or MTHFR variants.

Full Vitamin B6 (Pyridoxine) Guide

References

  1. (). Efficacy of vitamin B-6 in the treatment of premenstrual syndrome: systematic review. BMJ. DOI
  2. (). Nausea and Vomiting of Pregnancy. Obstetrics & Gynecology. DOI
  3. (). Vitamin B6 level is associated with symptoms of depression. Psychotherapy and Psychosomatics. DOI