LongevityPreliminary grade

Epithalon

Epitalon

A telomere-focused longevity tetrapeptide with a largely Russian/rodent evidence base.

Verdict — C · Emerging / Mixed

Low-burden dosing and an intriguing longevity mechanism, but the Western human evidence and verified supply are thin. Emerging.

PepScore / 100

CEmerging / Mixed

How we compute this →

Overview

Epithalon is a synthetic tetrapeptide studied (mostly in Russian and rodent work) for telomerase activation and telomere lengthening. The short blast protocol is low-burden, but Western human evidence and verified sourcing are limited.

PepScore Breakdown — the four axes

Evidence

35% weight

34/100

How strong is the published human science?

Human data depth12/40

Regulatory & registry status6/30

Reproducibility & consistency10/20

Mechanism characterized in humans6/10

Sourcing & COA

30% weightOur moat

66/100

Can a buyer obtain an independently-verified, high-purity version? — our proprietary layer.

Independent 3rd-party testing22/35

Verified purity %20/30

COA transparency & batch traceability13/20

Multi-vendor verified availability11/15

Safety & Risk

25% weight

77/100

What is the real-world harm potential?

Documented AEs / toxicity32/40

Contraindication breadth19/25

Regulatory warnings13/20

Therapeutic index / margin13/15

Practicality

10% weight

75/100

How easy is it to actually run a verified version?

Verified-source availability26/35

Cost / value per cycle20/25

Reconstitution & administration19/25

Storage & stability10/15

Sources & Citations

Every claim cites a primary source. Citations are machine-audited against NCBI — see methodology.

→Epithalon / Epitalon — telomerase & telomeres (PubMed)

Best-Sourced Vendor

Limitless Life Nootropics

Vendor 84 · A

Strong vendor grade (A) and the best verified supply right now for Epithalon — batch-matched independent COA freshness 60%.

Visit Limitless Life Nootropics ↗

Ranked by Source Match = Vendor Grade × batch-COA freshness. Affiliate status is never an input to any grade, and a paying vendor never outranks a non-paying one on a tie.How this works →

PepScore58/100 · C

Last gradedJune 28, 2026

Next re-grade triggerRegistered Western human trials would lift Evidence and Registry.

Price Index Vendor Grades Providers Grade Board

Educational only — not medical advice. PepScore is an educational research grade, not a prescription or dosing recommendation. Some vendor links are affiliate links — this never affects grades. Consult a licensed healthcare provider before using any compound.