This guide is designed to act as a quick drug reference for the aesthetician who requires information on drugs, their purpose, drug interactions, and potential effects and side effects, especially as they pertain to skin conditions. This unique resource highlights drugs that will impact the skin, and as such, the ability to treat the skin with traditional topical or clinical treatments familiar in the spa or medical spa. Designed to increase knowledge in specific categories that are beneficial to patient care, the guide is organized to include coverage of common drugs for women; drugs used in the aging process; drugs used for autoimmune diseases; drugs for bacterial infections, viral infections, and fungal infections; drugs that affect the skin; drugs used for skin therapies; illegal drugs; and over-the-counter drugs. Special features of this reference guide include charts and illustrations for visual learning and a dictionary of drugs, their purpose and possible reactions.