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START HERE
Longevity Guide
Care
- Concierge Longevity Medicine
- Non-Concierge Services
About
Store
Contact
Patient Portal

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9 Monroe Parkway

Suite 260
Lake Oswego, OR 97035

503-230-7990 Office
503-230-1887 FAX

*HormoneSynergy® or variations thereof is a registered trademark and copyrighted brand owned by HormoneSynergy® Clinic, LLC, founded by Dr. Kathryn Retzler. This mark has been in continuous use in commerce since 2006 in connection with our medical services, longevity programs, and physician-formulated supplement lines under the HormoneSynergy® / RetzlerRx® brand. Reg. No.s 4,997,505; 4,997,943 and 3,321,488.

*HormoneSynergy® Clinic LLC only prescribe hormones within the context of a comprehensive treatment plan. No hormones are prescribed to anyone with a history of illegal steroid use, looking for isolated improvements in sports performance, or bodybuilders. No medications or hormones will ever be dispensed without an in-office consultation, comprehensive medical evaluation, laboratory testing, a prescription, and proper follow up protocols. HormoneSynergy® Clinic, LLC does NOT accept Medicare, Medicaid or TriCare and does not participate with any insurance providers, accept any insurance reimbursement, or make any profit from lab testing. Our clinic does not prescribe growth hormone for anti-aging purposes.

*The information provided on this website is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her physician. For medical diagnosis, seek advice from a medical professional to help evaluate your symptoms and condition.

*Statements on this website have not been evaluated by the United States Food and Drug Administration. The information provided about our protocols or any HormoneSynergy® nutritional supplement or any information contained on or in any product label or packaging is for educational purposes only and is not intended as a substitute for advice from your own physician or health care professional. You should always consult with a licensed healthcare professional before starting any diet, exercise or supplementation program, before taking any medication, or if you have or suspect you might have a health problem.

© 2026 HormoneSynergy® / RetzlerRx®. All rights reserved. Educational content may not be reproduced without permission.

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