The best way to address KP, keratosis pilaris, is to both chemically and physically exfoliate the rough, bumpy skin. This topical, cosmetic process can smooth the skin by removing the keratinous plugs in the hair follicle. KP is a skin disorder characterized by the appearance of red bumps typically found on the backs on thighs, arms, and butt. KP is thought to be caused by abnormal follicular keratinization so consistent exfoliation is key to minimize the buildup of dead skin cells.