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Frederick C. Beddingfield, III, MD PhD

    Management Team    

Frederick C. Beddingfield, III, MD PhD

President and Chief Executive Officer

Frederick C. Beddingfield III, MD, PhD is President and CEO of Sienna Biopharmaceuticals. He is also a board-certified dermatologist and dermatologic surgeon. Dr. Beddingfield served as Chief Medical Officer of Kythera Biopharmaceuticals, Inc. from March, 2013 until it was acquired by Allergan in October, 2015.

Prior to his appointment at Kythera, he held the role of Vice President and Therapeutic Area Head, Dermatology and Aesthetics at Allergan, Inc. Dr. Beddingfield also served as Chief Medical Officer of Allergan Medical and led the development of premier products in the dermatology and aesthetics industry, including KYBELLA®, BOTOX® Cosmetic, JUVEDERM XC®, VOLUMA XC®, LATISSE®, and NATRELLE® Breast Implants, all market-leading aesthetic treatments in their respective categories. During his tenure at Allergan, Dr. Beddingfield also led programs in acne, rosacea, scarring, hyperhidrosis, and hair loss.

Dr. Beddingfield earned an MD degree with Honors from the University of North Carolina and a PhD in Policy Analysis from RAND Graduate School of Policy Studies, while simultaneously completing his Dermatology residency and Dermatologic Surgery fellowship at UCLA in the STAR program. He was the recipient of the Elle Genius Award in 2009. Currently, Dr. Beddingfield is a Clinical Associate Professor of Medicine/Dermatology at the UCLA School of Medicine where he has been on the faculty teaching and seeing patients since 2003. He serves on the Board of Directors of Advancing Innovation in Dermatology and is a founder of the Dermatology Summit and Dermatology Entrepreneurship Conferences. He also serves on the Board of Directors for Camp Wonder, a camp for children with severe skin diseases as well as the Board of Directors of Cytrellis, Inc. an aesthetic medical device company.