COSRX Vitamin C 23% Serum with Vitamin E & Hyaluronic Acid, Brightening & Hydrating Facial Serum for Dark Spots, Fine Lines, Uneven Skin tone, Pure Vitamin C Serum (Ascorbic acid), 0.67 fl.oz / 20 ml, Animal Testing-Free, Artificial Fragrance-Free, Parabens-Free,The Vitamin 23% Serum: Create the best synergy. Boost skin enhancement and experience dramatically visible results by using Vitamin C and E together.,Patch Test Recommended: This serum consists of highly concentrated pure Vitamin C. A patch test on the body is recommended before using on the face.,Dermatological Ingredients: 23% Pure Vitamin C (Ascorbic acid) helps achieve youthful glowing skin. Super Vitamin E (Tocotrienol) helps fight signs of aging and slows down skin damage. Hyaluronic acid delivers rich moisture deep into skin and helps reduce the appearance of fine lines and wrinkles.,How to Use: Shake 1-2 times before use and apply 2-3 drops once or twice daily. For daytime wear, follow up with SPF 30+ sunscreen. Can be applied under the eye area; avoid direct eye contact.,COSRX Standards: All COSRX products are formulated with skin-friendly ingredients that alleviate irritated skin. Hypoallergenic, Dermatologist tested, Animal Testing-FREE, Parabens-FREE, Sulfates-FREE, Phthalates-FREE,