A synthetic tetrapeptide studied in preclinical longevity/telomerase-pathway research. The Peptide Index files it under Longevity-research peptide. Vendors also list it as “Epitalon”.
As of Sep 25, 2026, the lowest listed price is $1.000/mg and the median current listing is $3.61/mg, across 125 vendors (175 comparable single-compound listings). Prices are normalized to US dollars per milligram of peptide, exclude shipping, and are refreshed nightly.
In the nightly price history, the daily median was unchanged from $3.76/mg on Jul 14, 2026 to $3.76/mg on Sep 25, 2026 (0.0%), based on 67 observed days. Days the crawl missed are left out, not filled in. The daily series is taken across each day’s comparable listings, so it can differ slightly from the current-listings median above. See the full Epithalon price history chart.
| Vendor | $/mg | Price (USD) | Package |
|---|---|---|---|
| Nootropic Source | $1.000/mg | $99.95 | 100mg vial |
| Rarev Biolabs | $1.10/mg | $55.00 | 50mg vial |
| Behemoth Labz | $1.13/mg | $112.94 | 100mg vial |
| Peptide Works | $1.14/mg | $113.55 | 100mg vial |
| Crush Research | $1.24/mg | $62.10 | 50mg vial |
Each vendor name links to its public-record trust profile. The Epithalon price page lists every current listing.
Every night The Peptide Index reads vendors’ public catalog pages, records the listed price and stated peptide content, and divides one by the other to get a comparable $/mg. Blends and topical/cosmetic products are excluded from single-compound figures. Read the full methodology and how vendor signals are checked.