Shadow SPF 30+ is suitable for all skin types and can be used in any weather. Generously apply a broad-spectrum, water-resistant sunscreen with a Sun Protection Factor (SPF) of at least 30 minutes before going outside to all exposed skin. “Broad-spectrum” provides protection from both ultraviolet A (UVA) and ultraviolet B (UVB) rays. Re-apply approximately every two hours or as indicated on the label, even on cloudy days, and after swimming or sweating. Dermatologists and skin professionals agree that sun protection reduces the risk of developing skin cancer and is a critical step in any effective anti-aging skincare program.