Boosted Bovine Collagen™ contains hydrolyzed collagen peptides of non-GMO origin, sourced from pasture-raised, grass-fed cattle - free of antibiotics or added hormones. Each serving provides 10g of hydrolyzed collagen plus added L-tryptophan (an essential amino acid not found in collagen), making Boosted Bovine Collagen™ a complete protein. Collagen is the most abundant protein in our body. Added L-lysine, glycine, vitamin C and biotin help support overall collagen formation for joints, hair, nails and skin.