Buy Reviva Labs Cleansers - Reviva Labs Glycolic Acid Facial Cleanser 118ml/4oz - For Mature or Sun-Damaged Skin. How-to-Use: Apply liberally, massage onto face for 1-2 minutes with wet fingertips and leave on face for 1 minute. Rinse thoroughly with lukewarm water, followed by cold water rinse. pat dry. Facial skin is now properly prepared for Glycolic Acid Toner and Glycolic Acid treatments.