Hii. I want to add a chemical exfoliator. Is sefpil mandelic acid 10% cream safe? Does it clog pores? Ive sensitive, oily- acne prone skin. Sefpil contains (10% mandelic acid and 5% glycolic acid) is it safe to use once a week? Can I use it as leave on exfoliator or will have to wash off in 15 min? Please help (i've used glyceric acid, azelaic acid, adapalene gel, salicylic acid before) will cream suit me? (i've texture on my face and pih due to acne. And light dark patch on cheeks) can I add sefpil cream in my weekly skincare routine?