The cosmeceutical industry is a multi-billion dollar, consumer-driven market. Products promise highly desirable anti-aging benefits, but are not subject to regulation. We present an introduction to cosmeceuticals for the general and cosmetic dermatologist, including definitions and explanations of key terms, an approach to the evidence base, a dissection of chamomile and green tea, two paradigmatic cosmeceutical products, and a window into the underlying psychology of this vast marketplace.
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