SkinCeuticals Retexturing Activator Serum is a revolutionary replenishing and resurfacing serum that helps reinforce the skin’s barrier for a healthier, more radiant skin. Using patented technology, this unique serum is highly effective in promoting proper exfoliation while optimizing the skin’s amino acid supply to reinforce the external barrier. It is formulated in an efficient oil-free delivery system suitable for all skin types to replenish and exfoliate skin for noticeably soft, smooth skin texture. This oil-free serum has the resurfacing power of daily 20% glycolic acid treatment. The ingredients 25% hydroxyethyl urea/amino sulfonic acid compound: This unique patented combination of ingredients is designed to stimulate enzymes that help break the bonds binding dead skin cells to skin’s surface, to evenly exfoliate skin while maintaining the skin’s moisture levels. Kombucha, a byproduct of the tea fermentation process. This naturally-derived ingredient promotes radiant, soft, smooth skin. Hyaluronic acid, the powerful natural humectant provides long lasting hydration to improve the look of skin texture.