In fact, several proteins may contain the exact same amino acids and yet have different shapes and therefore serve completely different purposes. (blog.nkdnutrition.com)
Collagen peptides contain the same amino acids as gelatin which are identical to the protein found in skin, nails, hair, bones, cartilage, and joints. (purefeast.com)
Collagen hydrolysate has the same amino acids (and health benefits) as gelatin but different chemical properties. (primalblueprint.com)