DUTCH Plus
The DUTCH Plus® combines the flagship dried urine test with a saliva test to maximize the available information on sex and adrenal hormone production and metabolism. This extensive profile provides insights into the overall diurnal pattern of free cortisol and cortisone, the total distribution of cortisol metabolites, and the cortisol awakening response (CAR). Organic acid tests provide further insight into potential nutritional deficiencies, oxidative stress, gut dysbiosis, and more. The DUTCH Plus® is an essential tool for optimizing treatment plans and addressing hormone-related symptoms and conditions.
Get a free sample report
A clear, color-coded report your practitioner uses to build your plan. Every marker is grouped, flagged, and plotted against reference ranges.
Video
Collecting your sample
No clinic visit needed. Watch exactly how the at-home kit works — from unboxing to dropping off your prepaid return package.
FAQ
Answers to your questions about lab testing and services.

Dr. Claude Fortin MD
Claude Fortin MD, FAARFM, ABAARM, DipABLM, FSSRP is the Medical Director of Colorado Ageless Institute PLLC. He relocated to Castle Rock, Colorado, in 2016 in association with Neurology of the Rockies LLC. For 30 years prior, he had been in private practice in Springfield, Illinois, and Associate Professor of Neurology at SIU Medical School. At Colorado Ageless Institute, Dr. Fortin has developed a world-class, evidence-based regenerative cellular medicine practice. He approaches disease in a radically different framework: disease reversal and prevention from the cellular level. He uses advanced diagnostic tests, cutting-edge cellular medicine therapeutics, including peptides that are years ahead of the standard medical practice. Dr. Fortin utilizes scientifically documented age reversal medicine techniques, including brain preservation & longevity programs, to address the underlying genetic, cellular, biochemical, and physiological processes that result in what we all recognize as aging. Dr. Fortin has incorporated the diverse medical training he has acquired over the years to include principles of lifestyle, functional, cellular, regenerative, and age reversal medicine into his approach with patients at Colorado Ageless Institute. He is board-certified in Neurology, Clinical EEG, Anti-Aging and Regenerative Medicine, and Lifestyle Medicine. He is a Fellow of the American Academy of Anti-Aging and Regenerative Medicine, with added Certification in peptide therapy. He is a fellow of the Peptide and Cellular Medicine Master Mind Program at the Seeds Scientific Research & Performance Institute and obtained Certification in Age Management from the Cenegenics Institute. He is a member of the Seeds Mastermind program, the American College of Lifestyle Medicine, and the American Academy of Psychiatry and Neurology.
My websiteFocus areas
Men's Health
Metabolic Health
Women's Health
Healthy Aging / Longevity
Neurological Health
States of practice
Arizona
California
Colorado
Florida
Idaho
Illinois
Indiana
Iowa
Kansas
Maine
Missouri
Nevada
Tennessee
Texas
Utah