Blistex Lip Conditioner SPF15 provides daily conditioning treatment to protect from sun, wind and cold, and to relieve and prevent dry lips. PABA-free for sensitive lips. Sun Protection: The liberal and regular use of this product may help prevent skin cancer-causing effects of the sun. Prevention/Protection: Apply frequently (at least every 2 hours and after swimming) for added protection from sun, wind and cold. Dry Chapped Lips: Apply frequently until lips are soft and smooth.