Chemical peels are applied on the skin in order to exfoliate and improve its texture. They can help reduce the appearance of wrinkles, acne scars, brown spots, uneven skin texture and tone. Depending on the level of their penetration into the skin, they are grouped as superficial, medium and deep. Glycolic acid peels are amongst the most popular and they come in different strengths with varying degrees of penetration into the skin. There are also a number of other peels with unique properties that can be applied to specific skin problems.