PIGMENTATION AND SUNTAN http://whiteink.in/treatment-Sun-Tan-and-Pigmentation-4 IS THERE ANY MAINTENANCE REQUIRED? Yes. Sunscreens are essential in the treatment of melasma. They should be broad spectrum, protecting against both UVA and UVB rays from the sun. A SPF 25 or higher should be selected. Sunscreens should be worn daily, whether or not it is sunny outside, or if you are outdoors or indoors. A significant amount of ultraviolet rays is received while walking down the street, driving in cars, and sitting next to windows. We may also advise you to continue home care to maintain the results.