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.
Home > Cosmetic Dermatology > Level One > Chemical Peels. Chemical peeling is a technique used to improve the appearance of the skin. In this treatment, a chemical solution is applied to the skin to remove a layer or layers of skin. The new, regenerated skin is usually smoother and less wrinkled than the old skin.