Learn more about lipids with Professor Thomas M. Terry. Fats or triglycerides are formed by three fatty acids each bonded by an ester linkage to glycerol. 1  Twist and turn the lipid below to see how kinky fatty acids are.
Superficial peels are the mildest type of chemical peel. They can be used on all skin types. In most cases, they use liquid containing a mild (dilute) acid, most often glycolic acid. Dry ice (solid carbon dioxide) is sometimes used. Medium peels soak deeper into the skin than superficial peels do.
Also known as glycolic acid peels or AHA chemical peels, light chemical peel is a non-invasive treatment that removes the upper layers of dead and damaged skin and encourages skin cell regeneration. This type of peel provides gentle treatment for fine lines, acne, chronic dry skin, and uneven pigmentation.