The technology of a longer, healthier life — reviewed by people who actually use it.
LongevityTech Lab tests and reviews the supplements, wearables, and devices that aim to extend your healthspan: the healthy, functional portion of your life. No hype. No paid placements. Just honest analysis of what works, what doesn't, and what's worth your money.
The three pillars of modern longevity
Most longevity content lives in one of three categories. Pick the pillar that matches what you're trying to optimize first.
Supplements
NMN, NR, resveratrol, spermidine, magnesium, omega-3, apigenin, and the rest of the modern longevity stack. What's evidence-based and what's hype.
Wearables
Oura Ring, Apple Watch Ultra, Whoop, Fitbit, Withings — the devices that turn physiology into data you can actually act on. Real-world battery, comfort, and accuracy compared.
Testing
Biological age tests, DNA kits, microbiome tests, and continuous glucose monitors. The measurements that tell you whether your protocol is actually working.
Our most-read reviews of 2026
The articles our readers come back to again and again. Start here if you're new to longevity tech.
Best NMN Supplements of 2026
Renue, ProHealth, OMRE, and Double Wood compared. Which formulation actually delivers NAD+ — and which is just overpriced powder in a capsule.
Read the full review → TestingBest Biological Age Tests in 2026
Epigenetic clocks explained. myDNAge, TruDiagnostic, Elysium Index, and more — what each measures, what they cost, and which is worth doing.
Read the full review → WearablesBest Longevity Wearables of 2026
Oura Ring 4 vs Apple Watch Ultra 2 vs Fitbit Sense 2 vs Withings ScanWatch. Side-by-side comparison of the four wearables worth wearing in 2026.
Read the full review → ProtocolDavid Sinclair's Supplement List (2026 Edition)
The Harvard researcher's full daily stack — NMN, resveratrol, metformin, and more. What he takes, why, and how to build a similar protocol yourself.
Read the full review → DevicesBest Red Light Therapy Panels in 2026
Mito Red, Biomax, and Joovv compared. Wavelengths, irradiance, price-per-watt — the only red light panel guide you'll need.
Read the full review → GuideHow to Lower Your Biological Age
The evidence-based playbook: sleep, exercise, diet, supplements, and testing. Everything you need to actually reverse your epigenetic clock.
Read the full guide →New to longevity tech? Start here.
If you're just discovering the world of healthspan optimization, the volume of information can be overwhelming. These three articles give you the foundation you need.
Healthspan vs Lifespan: What's the Difference?
Why living to 100 isn't the goal — living well to 100 is. The fundamental concept that every longevity protocol is built around.
Read more → FoundationsBiological Age, Explained
Your chronological age is just a number. Your biological age — measured by DNA methylation — predicts how well your body is actually aging.
Read more → FoundationsThe Beginner Longevity Protocol
The simplest, highest-leverage starting point: sleep, walking, strength training, three supplements, and one annual test. That's it.
Read more →Side-by-side comparisons
Head-to-head breakdowns of the products and protocols people ask us about most.
NMN vs NR — Which NAD+ Booster Wins?
The two leading NAD+ precursors, compared head-to-head on bioavailability, dose, price, and clinical evidence.
Read the comparison →Oura Ring 4 — Full Review
30-day wear test of Oura's newest smart ring. Is the upgrade from Gen3 worth $50? Sleep accuracy, battery, smart sensing, and more.
Read the review →Bryan Johnson's Blueprint Protocol
The $2-million-a-year anti-aging protocol, decoded. What's worth copying, what's not, and what you can replicate on a normal budget.
Read the breakdown →Peter Attia's Outlive — Full Summary
The complete framework from Outlive in one article: Medicine 3.0, the four horsemen of disease, and the exercise-nutrition-sleep triad.
Read the summary →Get the weekly Longevity Brief
No spam, no fluff. Just the one study, one product, and one protocol worth your attention each week. Curated by our editorial team.
Learn About Our Process →Every review and guide, all in one place
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