L'Oréal Paris' Glycolic Bright Instant Glowing Face Serum is formulated with an optimal concentration of 1% Glycolic Acid leaving skin looking and feeling more radiant and smooth in just 7 days*.The scientifically proven formula instantly brightens skin & visibly reduces the appearance of dark spots. Immediately, the skin is luminous & visibly glowing. In 2 weeks, skin is visible clearer*; dark spots are visibly reduced, and imperfections appear minimised. Validated by dermatologists.