A chemical peel is the use of a chemical solution that burns off damaged skin cells on the face. The purpose of a chemical peel is to rejuvenate your skin, giving it a more youthful appearance. There are various types of chemical peels that differ based on skin penetration depth.

Chemical peels help rejuvenate the skin via a chemical solution that sloughs off the damaged, outermost layer of the skin, which allows smoother, more evenly pigmented skin to surface, notes the American Academy of Dermatology. The mildest type of chemical peels generally contain alpha hydroxy acids, or AHAs.

When a toddler starts coughing, it can be a source of concern for parents. When other symptoms are also present -- such as peeling skin on the fingers and toes -- it could indicate a more serious illness than a cold. However, these symptoms could be coincidental and might not be related to the same illness.

Fruit acid is a type of alpha hydroxy acid, or AHA. When applied topically, fruit acids have a rejuvenating effect on skin. They are found in various concentrations in a number of acne and anti-aging treatments, including both over-the-counter and professional-grade facial peels.

Whether you slice it, dice it, mash it or puree it, avocados are a healthful addition to your diet, as long as you eat them in moderation.

A trichloracetic acid -- TCA -- peel is a type of chemical peel that is considered a medium-depth peel. Skin professionals use this peel to treat a variety of skin imperfections; it requires a longer recovery time than a superficial peel like a glycolic or alpha hydroxy acid peel.

Glycolic acids, found in citrus fruit, cause the top layer of the skin to peel off, revealing fresh, new skin beneath. Dermatologists and estheticians use glycolic acid peels to make skin appear firmer and more youthful.

Chemical peels are used to improve your skin’s appearance and reduce fine lines, skin discoloration, dullness, acne scars and sun damage. They come in a variety of strengths, and the stronger peels penetrate deeper layers of skin.

During a chemical peel, a solution such as glycolic acid or trichloroacetic acid is applied to the skin. The chemical continues to work on the skin over the next week or two, causing the top layer of skin to blister and peel off.