Catering upon the eminent demands and needs of our customers in this industry, we are indulged in manufacturing, exporting and supplying a huge spectrum of Pyridoxal 5 Phosphate in Shanghai, China. Our offered products are formulated by our skilled team of experts. Pyridoxal-5-Phosphate, or P5P as it is commonly known, is the active form of vitamin B6. In foods or most supplements, vitamin B6 is found in one of three forms: pyridoxine hydrochloride, pyridoxal, or pyridoxamine. Inside the body, these forms of B6 have to be converted by the liver to the active form the body needs â P5P. Low rates of conversion from the inactive to the active form of vitamin B6 have been reported, especially in people with impaired liver function, celiacâs disease, older adults, and in children with autism.