Life Extension, VITAMIN B3 NIACIN 1000 MG 100 CAPSULES
Vitamin B3 Niacin 1000 mg, 100 capsules Item Catalog Number: 096 Niacin is the only B vitamin that can be synthesized in the body from the amino acid tryptophan. 189-192 In its coenzyme forms, niacin is crucial to energy transfer reactions,