The Esthetic Skin Institute (ESI) is nationally recognized as the #1 choice in medical esthetic training and certification for Physicians (MD and DO), RN’s, NP’s, Physician Assistants, Dentists LPN’s, LVN’s, and in select courses Estheticians. ESI offers medical professionals the opportunity to obtain certification in a series of medical esthetic techniques through intensive hands-on workshops and has done so since 1997.