20% stable vitamin C derivative to support collagen synthesis, along with hyaluronic acid and linolenic acid to reduce the appearance of imperfections, fine lines, and wrinkles with regular use. The antioxidant effect of vitamin C is enhanced by astaxanthin – for more evenness, smoothness, and youthful freshness. Result: A more even and smoother skin appearance. Application: Once daily for 7 days, apply the 2 ml ampoule after cleansing to the face, neck, and décolleté, and gently massage into the skin with light pressure from your fingertips. Shake the ampoule and cover the neck of the ampoule with the included ampoule opener or a cosmetic tissue. Hold the ampoule by the neck or opener and break it open with a quick motion at the black ring, then distribute the serum concentrate in your palms. Ideally, follow with the DOCTOR BABOR Collagen Peptide Booster Cream or any other skincare cream.