Directions for use: Shake well before use. Use as a sunscreen Apply generously to exposed skin 15 minutes before sun exposure.. Reapply as needed every 2 hours or after towel drying swimming or sweating. When swimming or if you sweat heavily, use a water-resistant sunscreen. Sun protection rules. Regularly use a broad-spectrum sunscreen with SPF 15 or higher and take other protective measures , including: Limit time spent in the sun especially between 10 a.m. and 2 p.m.