I was very excited to try this BHA power liquid since Cosrx went viral months ago, but to be honest I don't think it makes that much of a difference in my skin. I prefer other serums/essences, it is not bad because i've seen some results like my pores getting smaller and as an quimic exfoliator works okay. I really think it depends on your skin because I have seen people using it and having really dramatic results so do not base your idea in this product in one review and try to search for more!