Esther Williams, M.D., is a board-certified medical, cosmetic and surgical dermatologist, and treats adult and pediatric patients. She is assistant clinical professor in dermatology at Mount Sinai Medical Center. Her particular focus is on the interplay between hormones and the skin. As such, she has special interest in treating complex acne and rosacea, skin conditions in pregnancy, and age-related facial changes in both men and women, using advanced technologies from injectables to lights and lasers.