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