Hyaluronic acid is a humectant, meaning it draws moisture from its environment and retains it like a sponge. According to Harvard Health Publishing, it holds over 1,000 times its weight in water.
Glycerin, a humble skincare ingredient, quietly hydrates and protects skin without the hype. This clear, syrupy liquid acts as a humectant, drawing moisture in and locking it in place, combating ...