At HormoneSynergy®, we believe aging is inevitable—but how you age is optional. Our mission is to help you achieve optimal health, energy, and vitality at every stage of life through a personalized, science-driven approach that integrates longevity medicine, functional health, and advanced diagnostics.
Under the leadership of Dr. Kathryn Retzler, a nationally recognized expert in age management and hormone therapy, we provide cutting-edge solutions designed to support physical, mental, and emotional well-being—not just the prevention of disease.
Comprehensive Longevity & Functional Health Services
At HormoneSynergy®, we combine evidence-based medicine with advanced testing and tailored therapies to create programs for long-term vitality and wellness:
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Age Management & Longevity Medicine – Science-backed strategies to help slow aging and improve energy.
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Bioidentical Hormone Replacement Therapy (BHRT) – Including testosterone therapy for men and women to restore hormone balance.
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Functional Medicine & Lifestyle Optimization – Nutrition, supplements, fitness, and sleep plans designed for whole-body health.
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Cognitive Health & Preventive Care – Cutting-edge therapies to support brain health, memory, and metabolic resilience.
Why Patients Choose HormoneSynergy®
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Physician-Led Expertise – Led by Dr. Kathryn Retzler, a pioneer in functional and longevity medicine.
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Personalized, Data-Driven Care – Every protocol is built on comprehensive lab testing and imaging diagnostics.
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Advanced Technology – Including Cleerly® AI cardiac imaging, DEXA body composition scans, and metabolic health testing.
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Functional & Preventive Focus – Beyond symptom relief, we target root causes to optimize long-term health.
Serving Portland, Lake Oswego & Beyond
Located in Portland, Oregon, HormoneSynergy® serves patients throughout the Pacific Northwest seeking functional medicine, hormone optimization, and longevity-focused care. Whether you want to improve energy, restore mental clarity, or slow the aging process, our clinic provides personalized solutions for a healthier future.
Take Control of How You Age
Your healthspan matters as much as your lifespan. At HormoneSynergy®, we help you look, feel, and live your best with a science-based approach to aging well.