About this item Pyridoxal 5'-Phosphate, the active form of vitamin B6, is supplied with magnesium, an essential mineral that assists B6 metabolism. Magnesium bisglycinate chelate is a well tolerated form of magnesium that is easily and comfortably assimilated without irritation of GI tissues.* P-5-P Plus٠is especially useful to support both B6 and magnesium nurtriture, amino acid balance, and liver function.* Hypoallergenic* formula free of the following common allergens: milk/casein, eggs, fish, shellfish, tree nuts, peanuts, wheat, gluten, soybeans, and yeast. Contains no artificial colors, flavors, or preservatives. Trusted by healthcare practitioners since 1969, Klaire Labs products are developed closely with physicians and are intended to be used as directed by a healthcare practitioner.