This concentrated peel dramatically improves multiple signs of aging, sun damage and congested pores with a powerful multi-acid blend. 2% salicylic + a potent AHA blend of 8.4% glycolic acid, 7.1% lactic acid, 5% mandelic acid, 2.5% malic acid and 2% tartaric acid deliver gentle, multi-level resurfacing. Plant extracts like bisabolol from chamomile, glycyrrhetinic acid from licorice and allantoin soothe skin while the acids go to work. Naturally derived butterfly pea flower calms and gives the peel its natural lilac color. The pH range is tightly controlled to stay within the safe and efficacious range of 3.5-3.9.