Dermatologist recommended.Sunscreen Neutrogena Active Ingredients: Avobenzone 3%; Homosalate 15%; Octisalate 5%; Octocrylene 2.79%; Oxybenzone 6%Apply liberally 15 minutes before sun exposure. For added protection, reapply after swimming, excessive perspiration, towel drying or extended exposure. American Cancer Society Sun Safe Essentials. Here are some tips from the American Cancer Society to make sure you are fully protected. Seek shade, especially in the middle of the day when the sun's rays are strongest (10 am to 4 pm). Cover up with protective clothing to guard as much skin as possible. Wear a hat, preferably one with a wide brim, to shade your face, ears, and neck. If you choose a baseball cap, remember to protect your ears and neck with sunscreen. Wear sunglasses with 99% - 100% UV absorption to provide optimal protection for eyes and the surrounding skin.