A facial toner functions to remove oil from the surface of the skin to ensure even penetration of the peel. TCA, Glycolic and Lactic peels are water soluble, and do not penetrate well with excess oil on the skin. The toner helps to remove this oil, and any soap residue left on the skin. An alcohol prep pad can also help remove these impurities on the skin. The alcohol can be very sensitizing to the skin, and cause more “stinging” or “redness” than would otherwise be present. It is best to use warm water or a very mild cleanser to rinse the skin. Repeat washing the face once more to ensure you remove all traces.