The Concentrated Brightening Glycolic Essence is the first step in the Vinoperfect dark spot correcting routine and is for all women who want to prevent or reduce their dark spots. In one simple step, it eliminates the dead skin cells that make the complexion dull and revives the skin's natural glow. Formula: 98% natural origin ingredients Dermatologically tested. Oil free. Visible results: 100% of women said their skin texture was refined(1) (1) Clinical trial: % of satisfaction, 31 women, 56 days.