After cleansing, saturate a cotton pad and gently sweep across the entire face, avoiding the immediate eye and lip areas. Alternatively, dispense a small amount into clean palms and pat lightly into the skin. Use in the morning and evening. Follow with a hydrating serum, moisturizer, and—during the day—a broad-spectrum sunscreen, as AHAs and BHAs can increase sun sensitivity. Begin with once-daily application if you are new to acid exfoliation, and gradually increase to twice daily as your skin builds tolerance.