The best way to avoid complications of a chemical peel is to have it performed by a skilled plastic surgeon or dermatologist. Any of the chemical peels, even if superficial, can cause hyperpigmentation or scarring. Be very cautious about peeling anywhere other than the face. Match the depth of the chemical peel to the depth of your problem. A TCA peel will typically help with fine lines, pigmentation and texturing of the skin. It is very important to prepare your skin prior to the peel. I usually start my patients on a skin lightening gel that contains hydroquinone, Kojic acid, retinoic acid and glycolic acid. These work to superficially exfoliate the skin and to prevent post peel hyperpigmenation. It is very unusual to have a scar from a properly performed TCA peel. The depth of the peel is important and can be judged by the physician applying the chemical. Too deep in certain areas can cause a scar. More information about a TCA peel at http://www.primacenter.com/Face/TCAPeel.aspx