Ariya Purity Collagen Type 1 & 3 Powder is an antiox beauty collagen powder. Collagen is the most abundant protein in the body and is a vital component of connective tissue, hair, skin, nails and bones. From a macronutrient perspective collagen can provide histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine and valine and therefore only lacks tryptophan as the final essential amino acid. Flavour: Berry. Size: 300 g.