After most peels, the skin will be pink to red, and look shiny and tight. It is vital to apply sunscreen of SPF 30 or greater to the skin for the next 48 hours, minimum. You must also stay out of the sun, as your skin will be very sensitive to UV rays and could be damaged by sun exposure. The skin will begin to flake or peel within 2–3 days after the treatment, unless you had a lactic acid peel—these encourage moisture retention and may not produce any actual peeling. Sun-damaged areas of your skin will appear darker at first, then will lighten. This is normal. Deeper peels can produce peeling for a week or more. To assist in removing the flaking skin, an enzyme peel or light microdermabrasion treatment is sometimes scheduled a week or so after the initial peel. For maximum results, a series of peels is usually recommended, and may be necessary for treating challenging issues such as hyperpigmentation.