PCA SKIN Weightless Protection Broad Spectrum SPF 45 is a lightweight, fast-absorbing sunscreen designed to shield skin from harmful UVA/UVB rays while providing antioxidant protection. It is formulated with zinc oxide and other UV absorbers, plus caffeine to combat free radical damage. The sheer, weightless formula is suitable for all skin types, particularly those prone to acne, aging, or dryness. It is also reef-safe, free of oxybenzone and octinoxate.