Actinic Keratosis Prevention is a treatment for sensitive skin that prevents actinic keratosis, skin cancers (excluding melanoma), and photoaging. It protects the skin daily from solar radiation. Instructions for use : Apply evenly every morning to the face and areas of the body exposed to the sun throughout the day. For recommended dosages*, please refer carefully to the instructions for use. Reapply if exposed to water for a long time, excessive perspiration, or contact with the sun. Avoid direct sun exposure by wearing additional protection (cap, sunglasses, t-shirt, etc.). Tips: Reapply if exposed to water for a long time, excessive perspiration, or contact with the sun. Avoid direct sun exposure by wearing additional protection (cap, sunglasses, t-shirt, etc.).