Part of Kiehl's range of dermatologist solutions, this 'Clearly Corrective' serum targets dark spots, discoloration and hyperpigmentation to reveal a more even skin tone in eight weeks. It is formulated with Activated C – derived from Vitamin C but more potent -antioxidant Peony and White Birch extract. With daily use, this clinically demonstrated treatment will help prevent the formation of future dark spots and other discolorations caused by acne scarring or aging. - Applied after cleansing- Free from silicone, paraben and fragrance- No colorants or optical diffusers -Instructions for use: - Cleanse skin thoroughly prior to application- Apply dark spot serum over entire face both day and night under your ideal moisturizer- 50ml/ 1.7oz. Ingredients: Aqua / Water, Propylene Glycol, Glycerin, Alcohol Denat., Peg/Ppg/Polybutylene Glycol-8/5/3 Glycerin, Hydroxypropyl Tetrahydropyrantriol, 3-O-Ethyl Ascorbic Acid, Ppg-6-Decyltetradeceth-30, Phenoxyethanol, Salicylic Acid, Xanthan Gum, Hydroxyethylcellulose, Potassium Hydroxide, Citric Acid, Sodium Citrate, Tocopheryl Acetate, Lavandula Angustifolia Oil / Lavender Oil, Disodium Edta, Linalool, Citrus Tachibana / Citrus Aurantium Tachibana Peel Extract, Paeonia Suffruticosa Extract / Paeonia Suffruticosa Root Extract