Reference ranges
No reference ranges recorded for this biomarker yet.
Peptide relevance
Mean leukocyte telomere length — a proxy for cellular aging. NO HARMONIZED REFERENCE RANGE — labs (Life Length, TeloYears, Repeat Diagnostics) report results in different formats: absolute kilobases (kb), percentile vs age-matched cohort, or 'telomere age' (age your telomeres look like). Most relevant for tracking epitalon (Russian-developed peptide claimed to support telomerase activity) — the strongest peptide-relevance use case in this library. Also relevant to general longevity intervention tracking (caloric restriction, exercise, NAD precursors). KEY CAVEAT: high intra-individual variation between draws (10-15% noise) requires 6-12+ month retest intervals to detect signal; single readings are uninformative. Test once for a baseline; retest annually at most. The 'longer = better' framing is an oversimplification — extremely long telomeres carry their own cancer risk.
Peptides that influence this marker
Documented to affect this marker. Click through for the full evidence-tiered profile.
Have a recent Telomere length (mean leukocyte) value?
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