Ren resurfacing aha concentrate is formulated to resurface the skin and renew the complexion giving a radiant youthful glow a complex of glycolic lactic tartaric and citric acids promotes skin cell turnover leaving skin looking revitalised brighter smoother and more healthy ren resurfacing aha concentrate gently exfoliates so skin appears radiant even toned and smoothed reduces the appearance of pore size and fine lines and iimproves moisture retention and the efficacy of your skincare