GlycanAge tested testosterone therapy in men against IgG glycosylation and GlycanAge in the same research program, finding a clear shift toward a younger glycan profile with reduced agalactosylation and increased galactosylation and sialylation.

At GlycanAge, we’re redefining the way we understand and measure aging. Backed by over 30 years of research and more than 300 peer-reviewed publications, our work centers on glycans—complex molecules that regulate inflammation and immune system function. These biomarkers offer a unique lens into your biological age, helping us understand how lifestyle, chronic inflammation, and environmental factors influence the aging process. Our flagship product, the GlycanAge® test, is a simple at-home test that goes beyond genetics to show how your body is actually aging—right now. It's already used by over 1,500 providers and tens of thousands of customers globally to track the impact of interventions and optimise preventative care strategies. Whether you're leading in the longevity space or taking the first step in your health journey, GlycanAge empowers you with actionable insights to live healthier for longer.