What it is: A skin-transforming serum that visibly improves lines and wrinkles. Who it's for: Ideal for all skin types, including sensitive.What it does: This serum that contains a blend of retinol and retinyl propionate at an optimized dosage to maximize results hydrates for 24 hours to strengthen skin's surface barrier with peptides. It absorbs deep into the skin's surface layers, aiding the skin's cell turnover so it looks smoother, firmer and more youthful. How to use: In the evening, apply a pea-sized amount to clean, dry skin and follow with a moisturizer. Limit initial usage to three times per week, gradually increasing frequency to every night as tolerated. Paraben-free; phthalate-free; sulfate-free; formaldehyde-free; mineral oil-free; oxybenzone-free; coal tar-free; hydroquinone-free; triclocarban-free; triclosan-free; synthetic fragrance-free Made in the USA