The SOME BY MI Mircle Serum contains Tea Tree 10,000 PPM that has low stimuli and removes the dead skin cells effectively. And this serum can minimize the apperance of pores.This Serum also contains 14.5% centella asiat-ica extract, and 3 types of acids (AHA, BHA, and PHA). It makes skin more radiant, cares pore, brightens skin and gives deep moisture. - AHA, BHA, and PHA is excellent at working as effective exfoliator and skin cleaner. Suggest you can use the SOME BY MI Miracle Serum with SOME BY MI Miracle Cream and SOME BY MI Toner, it can maximize the effect of brightens skin, deep moisture, and soothing skin.