Glycine Excellent Humectant Hydratation Glycine at a glance Amino acid that helps the body create proteins Produced by the body Is a skin replenishing ingredient Chemically is considered the simplest amino acid Glycine description Glycine is an amino acid that helps the body create proteins. Chemically, it is considered the simplest amino acid and is found in many peptides. The body produces its own glycine, but it also can be consumed as part of a person’s diet. Applied topically, glycine (as with all amino acids) is a skin replenishing and hydrating ingredient, meaning it helps skin retain moisture for a more youthful look and feel. Related ingredients: Amino Acids