hs-CRP
Systemic inflammation and cardiovascular event risk
- Optimal range
- < 0.5 mg/L
- Standard lab range
- < 3.0 mg/L (low risk)
Join Longevity Leak — Newsletter and Blood Tracker
Newsletter + App
Track biomarkers with evidence context,
not generic lab-only interpretation.
We translate longevity research into plain language each week and map biomarkers to practical next-step context. Ranges and scores are informational tools, not diagnoses or medical advice.
Free newsletter included. Blood tracker app in early access. No spam, no auto-renewals.
What you get
Weekly Newsletter
Longevity research translated into plain language. Every study is interpreted for what it means for your specific biomarkers — not just abstract statistics.
- ✓ One study, one clear takeaway
- ✓ What it means for your blood markers
- ✓ Uncertainty stated when evidence is thin
Blood Tracker App
Enter your lab results and compare standard lab ranges with research-informed targets used in longevity literature.
- ✓ Optimal vs. standard range comparison
- ✓ Research-informed biomarker score
- ✓ Reminders when to retest
Community
Connect with others tracking the same biomarkers. Compare protocols, share what moved your numbers, and follow peer-reviewed discussions.
- ○ Peer tracking groups by marker
- ○ Moderated, evidence-only discussion
- ○ Monthly expert Q&A
How it works
Three steps. No new equipment required.
- 1
Get your bloodwork done
Order a panel at any lab — your GP, a direct-access lab, or a longevity clinic. Standard panels typically include most of the 10 key markers.
- 2
Enter your results
Input your lab values into the tracker. We accept standard units and automatically convert where needed. No wearables, no subscriptions to devices.
- 3
See your biomarker profile and what to review
Your results are scored against research-informed longevity ranges, with explicit uncertainty where evidence is limited.
The 10 biomarkers we track
These markers are selected because they have the strongest evidence linking them to biological aging, disease risk, and longevity trajectory. Each has an optimal longevity range that is tighter than standard lab reference ranges.
Optimal ranges are research-derived targets, not diagnostic criteria. They do not replace clinical judgment.
Core 5 — Metabolic and Inflammatory
Fasting Insulin
Insulin resistance and metabolic syndrome progression
- Optimal range
- < 5 µIU/mL
- Standard lab range
- 2–25 µIU/mL
HbA1c
3-month blood glucose average and diabetes trajectory
- Optimal range
- < 5.3%
- Standard lab range
- < 5.7% (normal)
ApoB
Atherosclerosis risk more precisely than LDL cholesterol
- Optimal range
- < 70 mg/dL
- Standard lab range
- < 130 mg/dL
Homocysteine
Cardiovascular and neurodegenerative disease risk, B-vitamin status
- Optimal range
- < 8 µmol/L
- Standard lab range
- < 15 µmol/L
Essential 5 — Nutrient and Hormonal
Vitamin D (25-OH)
Immune function, bone density, and longevity marker status
- Optimal range
- 50–80 ng/mL
- Standard lab range
- 20–50 ng/mL (sufficient)
Omega-3 Index
Cardiac and cognitive protection; EPA+DHA incorporation in red blood cells
- Optimal range
- > 8%
- Standard lab range
- > 4% (adequate)
TSH / Free T4
Thyroid function; fatigue, metabolic rate, and cognitive speed
- Optimal range
- TSH 0.5–2.0 mIU/L (functional target)
- Standard lab range
- TSH 0.4–4.0 mIU/L
Ferritin
Iron stores; both deficiency and excess accelerate aging and oxidative stress
- Optimal range
- 70–150 ng/mL (men); 50–100 ng/mL (women)
- Standard lab range
- 12–300 ng/mL (men); 12–150 ng/mL (women)
Sex Hormones
Muscle mass, bone density, mood, cognition, and longevity trajectory
- Optimal range
- Age- and sex-specific functional targets
- Standard lab range
- Laboratory reference range varies widely by lab
Pricing
Simple. Start free.
Free
$0
No credit card required
- ✓ Weekly research newsletter
- ✓ Full supplement directory access
- ✓ Full conditions directory access
- ○ Blood tracker app (not included)
- ○ Community access (not included)
Tracker + Community
TBD
Early access pricing coming soon
- ✓ Everything in Free
- ✓ Blood tracker app — enter lab results
- ✓ Research-informed biomarker score
- ✓ Optimal vs. standard range view
- ✓ Retest reminders
- ○ Community access (when live)
Start tracking biomarkers with clear evidence framing.
Join the newsletter for free. Get early access to the blood tracker when it launches. No spam, no auto-renewals. Unsubscribe any time.
See the supplements directory or conditions directory to explore what we track.