The pursuit of youthful, radiant skin is a timeless quest, and as science advances, new ingredients come to the forefront. Enter sialic acid, a lesser-known yet potent compound that holds the key to enhancing skin hydration and elasticity. This article delves into the world of sialic acid, exploring

N-acetylneuraminic acid, also known as sialic acid (SA), bird's nest acid, is a naturally occurring amino sugar, which was originally isolated from bovine submandibular adenomucin, hence the name sialic acid. Sialic acid is a nine-carbon monosaccharide derivative containing an amino group, and is a general term for all N- or O-derivatives of neuraminic acid or keto-deoxynonyluronic acid (KDN).