Arginine

Arginine is an amino acid that is used in cosmetics and skincare products that are used to help protect the skin from free radicals, increase the skin’s visible hydration levels, and potentially support collagen production. Arginine has been shown to have antioxidant activity. Another function of arginine in skincare products is to increase skin hydration by acting as a humectant. A humectant acts by pulling water into the skin from the environment and trapping it in the skin.