Broad-Spectrum SPF 15: Safeguard your lips against the sun's harmful UV rays with the added benefit of SPF 15 protection. Formulated with zinc. All-Weather Defense: From scorching summer days to chilly winter winds, this lip balm forms a protective barrier to shield your lips from harsh weather conditions, ensuring they stay soft and supple year-round. | Burt's Bees Burts Bees All-Weather SPF 15 Lip Balm, 0.15 oz Tube, 6 Tubes/Box, 8 Boxes/Carton | Quill.