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Longevity Medicine, Functional Wellness & Anti-Aging Insights from HormoneSynergy®

Welcome to the HormoneSynergy® Longevity Blog — your nationwide resource for evidence-based longevity medicine, functional wellness, bioidentical hormone optimization, GLP-1 weight loss strategies, and physician-formulated supplement guidance. Led by Dr. Kathryn Retzler, our expert-driven articles translate advanced clinical science into practical strategies that help individuals across the USA extend healthspan, optimize metabolic performance, balance hormones, and proactively support vibrant, resilient aging.

  • Revian® - The Right Light for Hair Growth™

    REVIAN hair growth devices utilize a patented Dual-Wavelength Technology that combines red (660 nm) and orange (620 nm) light emitted from medical-grade LEDs. This specific combination and the use of LEDs are key reasons why REVIAN positions itself as an effective light therapy for hair growth.