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.
Superficial or light peels are the gentlest type of peels available and one of the true âlunchtimeâ aesthetic procedures. They only remove the top layer of the skin, known as the epidermis, and can give your skin and instantly brighter look as well as a smoother, more even texture.