Serine

Serine is a non-essential amino acid, generally incorporated into skin care products for benefits involving the improvement of skin hydration. Whereas the human organism may synthesise serine by itself, in topical applications, it acts as a powerful water-binding active. In other words, this means that it helps the skin keep moisture inside for a soft, smooth, and well-hydrated complexion.
While there is limited detailed information on serine's unique properties concerning skin care, it contains general amino acid benefits: it is an active ingredient which is considered essential to maintain skin moisture. Serine, among other amino acids, helps support skin's barrier and keeps it hydrated; hence, it's a valuable active in moisturizing skincare products dedicated to improving general skin health and texture.