L’Oréal Skincare Laboratories developed INSTANT GLOWING SERUM formulated with 1.0% Glycolic Acid. Clinically proven to brighten skin and visibly reduce dark spots. With the smallest molecular weight amongst all Alpha Hydroxy Acids, it is absorbed deeply to help with skin rejuvenation. (1) Visibly reduces dark spots (2) Evens skin tone (3) Improves radiance VISIBLE RESULTS* Immediately: Skin is smoother and visibly glowing. In 2 weeks: Dark spots are visibly reduced. Skin is more even and looks brighter.