Dr. Retzler's Longevity Blog

Nearly two years after Portland’s 2024 ice storm destroyed our home, the rebuilding process revealed powerful parallels between insurance recovery and longevity medicine. Dr. Kathryn Retzler’s HormoneSynergy® approach to preventive, personalized care mirrors the same principles that helped us rebuild — resilience, continuity, and proactive action before crisis.

Your gut health affects everything from immunity to hormone balance. Learn how RetzlerRx® Leaky Gut Support from HormoneSynergy® helps strengthen your intestinal lining, reduce inflammation, and promote longevity — right here in Portland and Lake Oswego.

Creatine isn’t just for athletes — it’s one of the most researched nutrients for maintaining strength, cognition, and cellular energy as we age. HormoneSynergy® and Dr. Kathryn Retzler recommend Creatine Monohydrate as part of a comprehensive Longevity Medicine approach to support muscle mass, brain health, and vitality.

Sarcopenia — the age-related loss of muscle mass and strength — can be slowed and even reversed through targeted nutrition. Metagenics UltraMeal Advanced Protein®, recommended by HormoneSynergy® and Dr. Kathryn Retzler, provides clinically formulated protein and nutrients to support muscle health and longevity for adults nationwide.

Discover why healthspan matters more than lifespan and how HormoneSynergy® Clinic in Portland & Lake Oswego uses longevity medicine, preventive cardiology, and RetzlerRx® supplements to help you live longer, healthier, and stronger. Learn how to optimize energy, vitality, and well-being with evidence-based care and advanced diagnostics.

Build strength for life, not just fitness. Explore how HormoneSynergy® / RetzlerRx® uses Dr. Gabrielle Lyon’s muscle-centric model to enhance muscle protein synthesis, metabolism, detoxification, and hormonal balance for healthy aging and longevity.

Discover the top 10 Metagenics® supplements for hormone balance, immune health, and longevity — available nationwide from HormoneSynergy® / RetzlerRx®. Learn how these science-backed formulas fit into your personalized wellness plan.

Explore the best-selling Xymogen® supplements recommended by HormoneSynergy® / RetzlerRx® to enhance hormone health, metabolism, and longevity—available online across the U.S.

Calocurb® with Amarasate® offers a clinically supported, natural way to reduce hunger, support fasting, and promote healthy weight management — available at HormoneSynergy® in Portland and Lake Oswego.

Magnesium plays a vital role in over 300 biochemical reactions that support energy, cardiovascular health, and longevity. Learn which forms work best—and why HormoneSynergy® / RetzlerRx® magnesium formulations are trusted by longevity medicine experts in Portland & Lake Oswego.

Your immune system’s strength depends on the balance of innate and adaptive defenses working together. At HormoneSynergy® Clinic in Portland & Lake Oswego, we help patients build resilience through science-based lifestyle strategies and advanced nutraceuticals like Transfer Factor Rapid Response™ by Researched Nutritionals®. Learn how to strengthen your immunity for lifelong health and longevity.

Not all collagen is created equal. Discover why RetzlerRx® Collagen Peptides, available at HormoneSynergy® in Portland and Lake Oswego, provide clinically proven support for bones, joints, skin, and whole-body longevity.