• Welcome to Phoenix Rising!

    Created in 2008, Phoenix Rising is the largest and oldest forum dedicated to furthering the understanding of, and finding treatments for, complex chronic illnesses such as chronic fatigue syndrome (ME/CFS), fibromyalgia, long COVID, postural orthostatic tachycardia syndrome (POTS), mast cell activation syndrome (MCAS), and allied diseases.

    To become a member, simply click the Register button at the top right.

pyridoxal 5 phosphate

  1. N

    Please help regarding B6/P5P labeling

    Hello everyone! I'm very confused about the labels on some P5P products. The Life Extension product's label says "Vitamin B6 (as pyridoxal-5'-phosphate) 100 mg". The Source Naturals product's label says "Vitamin B6 60 mg (from 100 mg pyridoxal-5'-phosphate)." Both products are advertised as 100...