Dr Rashel Vitamin C Brightening and Anti Aging Face Serum is light and highly Effective. Formulated with a high concentration of Hyaluronic Acid and Vitamin C . DIRECTIONS : Apply a thin layer of your serum of choice (about a pea-sized amount should do) and massage onto skin until fully absorbed. FOR BEST RESULT APPLY DAILY AFTER CLEANSING. Pro tip: Apply the serum to damp skin to lock in even more hydration! Dispense a few drops on fingertips and apply all over your face, focusing on any problem areas, until the product is thoroughly absorbed.