CosMedix Purity Balance is an exfoliating prep solution that helps to balance and tone the skin after cleansing and is the ideal prep before application of masks, to thoroughly degrease oily skin and enhance the penetration of active ingredients. CosMedix Purity Balance acid toner contains natural antiseptic properties, plus L-Lactic Acid and Salicylic Acid for exfoliation and detoxifying plant extracts and Vitamin B complex