Defining Dermatology is a dermatologist-led skin care practice serving patients in Portland, Oregon, and Stanwood, Washington. Founded by board-certified dermatologist Dr. Omar N.

Qutub, the practice provides individualized medical, surgical, and cosmetic dermatology, with care shaped around each patient’s skin health needs and goals. Its clinical services include diagnosis and treatment for acne, rosacea, psoriasis, eczema, other rashes, hair and nail disorders, and skin cancer, as well as skin cancer screenings. Cosmetic offerings include Botox and other neuromodulators, fillers, chemical peels, microneedling, laser and energy-based treatments, and platelet-rich plasma skin and hair rejuvenation.

Patients can book medical or cosmetic consultations and receive guidance on skincare products. Defining Dermatology also sells medical-grade skincare products and kits for daily routines, including cleansers, moisturizers, sunscreen, serums, exfoliants, brightening pads, and masks. The practice emphasizes thorough, approachable care and convenient online booking, and accepts most major insurance plans.

Its Portland clinic is located in the Pearl District, with a second location in Stanwood