Non-comedogenic: will not clog pores or cause blemishes. Non-irritating/ non-stinging. Hypoallergenic. Waterproof. Dermatologist recommended. Fragrance-free. PABA-free. This SPF 30 Sunblock Stick is specially formulated to provide spot protection for sun-exposed areas like ears and nose. It's convenient and easy to use while it provides 30 times your natural protection against sunburn. It also blocks the UVB rays which are primarily responsible for sunburn. It also protects your skin against the deeper penetrating UVA rays that have been associated with skin damage resulting in premature aging and wrinkling.