QUESTION: What are chemical peels? And what are chemical peels used for?

Chemical peels produce controlled injury to the skin which promotes growth of new skin with improved appearance. Many different chemicals are used for chemical peels and include glycolic acid, Lactic acid, salicylic acid, and “Jessners” solution. Chemical peels are used for the treatment of photoaging (from sun damage), wrinkles, scarring, acne, precancerous lesions, and discoloration (including melasma, freckles, and age spots).