Hyaluronic acid is a sugary molecule that occurs naturally in skin’s structure and connective tissue throughout the body. It helps lubricate your joints and keep things full of moisture so they stay in the right shape in the right place. Hyaluronic acid has the greatest ability to retain moisture. Hyaluronic acid helps replenish moisture that is crucial to having younger-looking, supple skin. It also helps revitalize skin’s outer layers so they look and feel softer, smoother, and, glowingly hydrated to instantly improve the appearance of fine lines and wrinkles.