We’ve lovingly formulated Boots vitamin C ADVANCED PLUS anti-wrinkle booster serum with 15% pure Vitamin C* and 2x Hyaluronic Acid” enriched with anti-oxidants to help promote radiant skin and effectively reduce the appearance of wrinkles and signs of aging effectively. Wrinkles look less visible and skin? appears to be visibly glowing. Paraben-free. Suitable of all skin types. Here’s how to use: Perform a patch test before use, apply a small quantity of product on the cleaned skin on the upper forearm, test for 24 hours prior to use. If you develop any irritation during or after the test, r?nse off and do not use the product. After cleansing, apply 3-4 drops with your finger tips onto your face. Use once per day (AM or PM) avoiding eye and lip area. For best results, we recommend following with Boots vitamin C ADVANCED PLUS serum and day or night cream.