The Isntree Hyaluronic Acid Natural Sun Cream serves as both a protective and hydrating cream to strengthen, hydrate, and block UV damage. It spreads and applies easily, while creating a ¡°blurring¡± effect for a more evened-out complexion. Minimal white cast. Helpful info: UVA - Long wave ultraviolet A (UVA) rays penetrate deep into the dermis, the skin's thickest layer and causes premature skin aging, wrinkling and dark spots. UVB - Short wave ultraviolet B (UVB) rays burn the superficial layers of the skin and is the main cause of sunburn and skin cancer. PA - More + signs mean longer protection against UVA SPF - Higher numbers mean longer protection against UVB