12 Longevity Clinics and Treatments That Aim to Extend Human Lifespan

7. Telomere diagnostics and interventions

Telomere length has been proposed as a biological marker of cellular aging, and some clinics offer telomere testing as part of a longevity profile. In research settings, very short telomeres associate with certain diseases, but telomere length alone is not a definitive predictor of lifespan for an individual. Interventions aimed at lengthening telomeres, including telomerase upregulation, are under study. While early lab results suggest possible benefits, clinical evidence tying telomere interventions to meaningful, safe life extension in humans is limited. Patients should treat telomere testing as one data point among many and avoid clinics that promise dramatic reversal of aging based solely on telomere numbers. If a clinic proposes telomerase-based therapy, request peer-reviewed safety data, long-term monitoring plans, and transparent explanation of expected outcomes. In short, telomere science is fascinating and offers potential biomarkers, but it’s not a standalone roadmap to guaranteed longevity.

8. Genomic, proteomic and multi-omic profiling

Multi-omic profiling—combining genomics, proteomics, metabolomics, and epigenetic clocks—gives clinics a rich dataset to personalize recommendations. Methylation-based epigenetic clocks can estimate biological age and track changes over time, and proteomic or metabolomic snapshots can highlight metabolic imbalances. These tools can uncover actionable issues like undetected prediabetes or inflammatory patterns that respond to diet, exercise, or medication. But the predictive power of multi-omics for individual lifespan remains imperfect; many signals point to risk trends rather than definitive outcomes. The real value is for personalized prevention: targeted screenings, risk-adjusted screening intervals, and tailored lifestyle recommendations. When considering multi-omic testing, ask a clinic how results will change care, whether interventions reduce validated endpoints, and how often repeat testing is recommended. Data privacy is also a central concern—request written policies about data use, sharing, and de-identification before consenting to broad molecular profiling.