Environ Alpha Day Lotion contains medium levels of Alpha Hydroxy Acids (AHAs). It also contains sunscreens and reflectants that combine to give an SPF15 sun protection. Benefits of Environ RAD Sun Protection SPF 15: -The product's sunscreens and reflectants combine to give a Sun Protection Factor of 15 How to Use: First apply your recommended Environ vitamin A moisturiser Then apply Alpha Day Lotion in an even layer to face, neck and décolleté and all areas exposed to the sun. Reapply frequently, every 90 min to 2 hrs to achieve optimal protection. May appear opaque if applied thickly, but this will provide even better sun protection.