Tea Tree Hydroxycinnamic Acid Gel Mask. Perfect your skincare regime and opt for this soothing Tea Tree and Hydroxycinnamic Acid Gel Mask. Expertly made to reduce the visible appearance of blemishes, this beautifying mask helps balance skin oil levels, reduces redness, and soothes skin. Contains the antioxidant Tea Tree, Hydroxycinnamic acid and Saliyclic. For the best results, apply onto cleansed skin and leave on for 10-15 minutes before rinsing off.