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Ranella Hirsch M.D.
Cosmetic Dermatologist, Co-Founder, Atolla @RanellaMD
Dr. Ranella Hirsch is a prominent figure in the field of dermatology and skincare. She is a Board-certified dermatologist and the past President of the American Society of Cosmetic Dermatology and Aesthetic Surgery.12 Dr. Hirsch is known for her expertise in cosmetic and laser dermatology, and is frequently quoted in publications such as Allure, Marie Claire, Harper's Bazaar, Vogue, Women's Health, Byrdie, Glamour, and InStyle.1
Dr. Hirsch co-founded Atolla, an award-winning skincare brand that uses AI to develop personalized skincare serums.2 In 2021, Atolla was acquired by Function of Beauty, a move that combined the companies' strengths in customization and data science.3
Some key points about Dr. Hirsch's background and achievements:
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Education: She received her medical degree summa cum laude with Distinction in Research from the State University of New York School of Medicine.2
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Training: Dr. Hirsch completed an internship at Yale University School of Medicine, residency in dermatology at SUNY, and advanced laser and cosmetic dermatology training at Massachusetts General Hospital of Harvard Medical School.2
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Professional affiliations: She is a fellow of several prestigious organizations, including the American Academy of Dermatology and the American Society of Laser Medicine and Surgery.2
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Leadership: Dr. Hirsch is recognized as the youngest person to hold elected leadership of a major dermatology society.2
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Research and publications: She has authored numerous scientific articles, abstracts, and textbook chapters, including the textbook "Aesthetic Regional Rejuvenation" published by McGraw-Hill.2
Dr. Hirsch is known for her innovative approach to skincare and her ability to combine scientific expertise with practical, consumer-friendly advice. Her work with Atolla and now Function of Beauty reflects her commitment to personalized, data-driven skincare solutions.23


