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.
Myth No. 1: Chemical peels sting. Not all chemical peels burn the skin or cause any discomfort. In fact, some are really mild. Others go deep and can cause some degree of discomfort. The deeper the peel, the more significant the sting, downtime and results. Glycolic acid peels are among the mildest.