Nescens Anti-Aging Face Exfoliator As part of the Nescens cosmeceutical skincare program, apply the Keratolytic Complex after the Cleansing Gel preferably at night, once or twice a week, on face and neck, avoiding all contact with eyes. Leave the cosmeceutical on for 5 minutes. Remove all of the product with a damp cloth. Dry well. Clinically tested under dermatological supervision. For men and women.