Cosmetic dermatologists are medical doctors who have sought additional training in dermatology in order to assess and treat skin conditions cosmetically. Their skill sets include such procedures as Botox, collagen injections, chemical peels, dermabrasion, laser surgery and liposuction. It typically takes about 11 years following high school in order to become a dermatologist. Depending on what procedures dermatologists desire to perform, they may or may not have to pursue additional training to become a 'cosmetic' dermatologist, specifically. Many of the cosmetic procedures can be learned during dermatology residency.