Tiam Vitamin C 24 Surprise SerumPure Vitamin C (Ascorbic Acid) 22% + Vitamin Derivative 2%] A water free vitamin serum that visibly evens out skin tone and improves complexion for the look of glowing and bright skin while remaining stable against light and heat. How to use After clearing the skin texture with a toner, take an appropriate amount and apply it gently to concerned areas such as dull skin, blemishes, and dark spots. If used in the morning and during the day, please use