Glycine is a nonessential amino acid naturally produced by the body and is a key component of the skin’s structure and surface, primarily through its presence in collagen. Collagen, the most abundant protein in the body, is composed of about 33% glycine residues and plays a vital role in supporting joint health and maintaining skin elasticity and flexibility.
As the smallest amino acid, glycine can easily penetrate the skin’s pores, making it highly effective in helping the skin retain moisture. Among the 20 standard amino acids, glycine ranks third in water solubility. It is frequently combined with other moisturizing ingredients like hyaluronic acid and glycerin to enhance hydration benefits.
In hair care products, glycine helps reduce electrostatic charges, making hair easier to comb while enhancing smoothness, softness, shine, and volume.
