Perricone Vitamin C Ester 15 features a super high 15% maximum concentration of Vitamin C Ester, designed to boost collagen production and make skin appear brighter, firmer and smoother. This non-invasive treatment helps to diminish imperfection, fine lines and wrinkles, minimise redness and restore suppleness. Contains 4 x 10ml tubes. Ingredients: Water/Aqua, Ascorbyl Palmitate, Isopropyl Palmitate, Cetearyl Alcohol, Glyceryl Stearate, PEG-100 Stearate, Ceteareth-20, Dimethicone, Phenoxyethanol, Cyclopentasiloxane, Caprylyl Glycol, Cyclohexasiloxane, Fragrance/Parfum, Zinc Sulfate, Disodium EDTA, Limonene, Elaeis Guineensis (Palm) Oil, Tocotrienols, Sorbic Acid, Tocopherol, Sodium Hyaluronate, Linalool, Citral Instruction for use: Thoroughly cleanse the skin and pat dry. Apply pea-sized dots of Vitamin C Ester along the targeted areas of the forehead, cheeks and chin. Spread the product with a circular motion. Wait a few moments and follow with Perricone Cold Plasma or your chosen Perricone MD moisturiser. The high concentration of Vitamin C Ester may make the skin feel tight upon first application. This is an intentional result of the firming effects of the product.