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B Vitamins · Swanson
P-5-P (Pyridoxal 5 Phosphate)
ModerateUnderdosed
What the lab found
Contained only 65.4% of its vitamin B6 (13.1 mg instead of 20 mg).
Failure type · Underdosed
Active ingredient measured significantly below the labeled amount — not therapeutic.
Source
Independent lab testing, 2024