PCA

PCA is a chemical compound, (2-Pyrrolidone-5-Carboxylic Acid), known as pyroglutamic acid is an internal amide of L-glutamic acid found in fruit, vegetables, herbs and molasses. It is produced from l-glutamic acid by an autoclave that heats water to 140°C. What it is used for and where Cosmetics Skin conditioning agent - Humectant. Humectants are...