Marli Ehrlich, PA-C is an aesthetic and regenerative medicine provider at Cosmetic Skin & Laser Center and RegenCen in Wellington, Palm Beach, and Hobe Sound. She offers advanced aesthetic treatments alongside regenerative care including bioidentical hormone therapy and physician-guided medical weight loss. Patients value Marli’s warm, collaborative style and her ability to create plans that feel personalized, sustainable, and supportive of long-term wellbeing.
Marli Ehrlich, PA-C is an aesthetic and regenerative medicine provider at Cosmetic Skin & Las...
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Caroline Hughes, PA-C is an aesthetic and regenerative medicine provider at Cosmetic Skin & Laser Center and RegenCen in Winter Park and Lake Mary. She offers advanced aesthetic services alongside regenerative care such as bioidentical hormone therapy and physician-guided medical weight loss. Caroline is known for her thoughtful, consult-first approach and her ability to create plans that feel aligned with each patient’s goals.
Caroline Hughes, PA-C is an aesthetic and regenerative medicine provider at Cosmetic Skin & L...
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Chief Medical Officer – RegenCen and Cosmetic Skin & Laser Center
Dr. Gustav Lo brings over 30 years of clinical experience and medical leadership to RegenCen and Cosmetic Skin & Laser Center (CSLC), where he serves as Chief Medical Officer. As co-founder of the practice alongside Courtney Lo, PA, Dr. Lo provides medical oversight and clinical direction across RegenCen’s regenerative and hormone health services.
Dr. Lo leads and mentors the provider team in bioidentical hormone therapy, menopause and testosterone treatment, PRF joint injections, NAD+ therapy, and regenerative medicine. His background in primary care—including decades as founder and operator of Northern Michigan MedCenter—shapes the thoughtful, evidence-based care that defines RegenCen’s approach to aging and wellness.
A passionate educator and advocate for women’s health, Dr. Lo regularly speaks on the benefits of hormone optimization, working to dispel outdated myths and empower women with safer, modern options. He remains closely involved in provider training and treatment development, ensuring clinical consistency and excellence at every RegenCen location.
Outside of medicine, Dr. Lo is a dedicated father of four, an avid reader, and a certified scuba diver with a lifelong passion for learning and exploration.
Chief Medical Officer – RegenCen and Cosmetic Skin & Laser Center
Dr. Gustav Lo brings over ...
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Lee Middleton, BSN, RN is the Clinical Practice Development Director at Cosmetic Skin & Laser Center and RegenCen, supporting Palm Beach, Wellington, and Hobe Sound. She works closely with clinical teams to enhance care delivery, training, and treatment standards across locations. Known for her calm leadership and clinical insight, Lee helps ensure patient care remains consistent, elevated, and thoughtfully executed.
Lee Middleton, BSN, RN is the Clinical Practice Development Director at Cosmetic Skin & Laser...
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Samiha Rahman, PA-C is a hormone and regenerative medicine specialist at RegenCen, serving patients in Palm Beach, Wellington, Hobe Sound, and Traverse City. She provides personalized care focused on hormone optimization, metabolic health, and long-term wellbeing. Known for her calm, attentive style, Samiha helps patients feel heard, supported, and confident in their care decisions.
Samiha Rahman, PA-C is a hormone and regenerative medicine specialist at RegenCen, serving patien...
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Amanda Rapanos, PA-C is the Chief Clinical Operations Officer for Cosmetic Skin & Laser Center and RegenCen, supporting clinics across multiple locations including Bluffton, Traverse City, Palm Beach, and Naples. She brings extensive clinical expertise and leadership oversight to ensure consistency, safety, and excellence in both aesthetic and regenerative care. Known for her clear guidance and high clinical standards, Amanda plays a key role in shaping patient care experiences across the organization.
Amanda Rapanos, PA-C is the Chief Clinical Operations Officer for Cosmetic Skin & Laser Cente...
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Aubrey St Mary, NP-C is an aesthetic and regenerative medicine provider at Cosmetic Skin & Laser Center and RegenCen in Vero Beach and Hobe Sound. She offers advanced aesthetic treatments alongside regenerative care such as bioidentical hormone therapy and physician-guided medical weight loss. Aubrey is known for her warm, reassuring approach and her focus on helping patients feel comfortable and understood.
Aubrey St Mary, NP-C is an aesthetic and regenerative medicine provider at Cosmetic Skin & La...
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