Chemical peels have a very long, proven track record for helping to fade or eliminate irregular skin staining and dark patches from photoaging (overexposure to the sun through the years) and for bleaching postinflammatory hyperpigmentation (the troubling brown discolorations left on the skin after acne, rosacea and other skin inflammations heal). In addition, chemical peels can impart increased luster and glow to the skin, freshen a sallow complexion, temporarily tighten pores, and decrease the appearance of fine wrinkles and lines.
Chemical peels are typically classified as superficial, medium and deep, depending upon the desired depth of the penetration of the acid. Medium depth peels and certainly deep peels are procedures that entail discomfort and a signficant recuperative period. Naturally, the deeper the peel the more potential risk there is of scarring and permanent pigment loss (or sometimes even permanent increased pigmentation).
For this reason, I prefer to treat hyperpigmentation using a series of four to six maximum strength superficial peels spaced at two to four week intervals. Agents used in this fashion include TCA 10%-20%, Jessner's solution, salicylic acid 30%, and glycolic acid 70%. Downtime from superficial peels is minimal to absent and the risks of any permanent problems extremely small. For best results and for maintenance, it is important to supplement and complement in-office peels with the the prior, concomittent, and post-treatment regular use of high SPF (at least SPF 30) sunscreens, bleaching agents, retinoids, and antioxidants.