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.
Chemical peels are a great way to refresh and rejuvenate the skin. However, with so many different peels available on the market and everyone from salons to board certified dermatologists offering peels, picking the right peel for your individual needs can be difficult.eep peels are the strongest type of chemical peel available and can achieve amazing results for sun damage, scarring and deep lines and wrinkles. Their main ingredient is usually carbolic acid (Phenol) or high strength TCA; both of which penetrate down to the deep layers of the dermis.