AUTO TONE DISCOLORATION SOLUTION SPF 30. Benefits: Visibly reduces discoloration, sunspots, and rough texture. Helps protect skin from environmental aggressors including UVA/UVB rays, which can cause visible discoloration. Lightweight formula absorbs quickly and looks invisible on skin. Leaves skin with a radiant finish, works well as a makeup primer. Suitable for all skin types, including sensitive skin. Key Ingredients: 0.5% Melasyl: works to help correct the appearance of visible excess melanin without shifting skin's natural tone. Invisible SPF 30: works to help defend against skin-damaging UV rays known to cause and worsen discoloration, when used as directed with other sun protection measures. Research Results: Kiehl's discoloration treatment is clinically tested on multiple skin tones, with demonstrated improvement in the appearance of*:. Post-Blemish Marks. Dark Spots. Dark Patches. Uneven Tone. *Based on expert grading in an 8-week clinical study. Average improvement in skin tone evenness, dark spots & dark patches after 8 weeks of use..