Vendor and compound
Epithalon from Koi Peptides
Koi Peptides lists Epithalon at $6.00 per mg, 56% over the $3.85 peer median. 1 third-party certificate for this compound from this vendor is on file, assayed by Freedom Diagnostics Testing, averaging 99.12% purity. The cheapest listed price for Epithalon anywhere in the index is $0.680 per mg at ZC Labs.
All Epithalon vendors · Koi Peptides profile · scores 79.8 of 100, rank 15 · 1 certificate for this compound · verified 1 Aug 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| 10 mg | $59.95 | $6.00 | +56% | Epithalon 10mg |
Read from the vendor’s own store and normalised per milligram, because a smaller vial at a lower sticker price is usually the dearer peptide.
What the laboratory found
| Lot | Assayed | Purity | Label → assayed | Laboratory | Record |
|---|---|---|---|---|---|
| 612026EP | 10 Jun 2026 | 99.12% | 10 mg → 9.65 mg | Freedom Diagnostics Testing | Open |
Freedom Diagnostics Testing publishes a lookup, so these reports can be confirmed at the laboratory rather than taken from the vendor. How to check one.
Other vendors selling Epithalon
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Next Gen Peptides | 93.8 | — | 1 |
| Ascend Science | 90.1 | $3.85 | 0 |
| Amino Club | 88.3 | $3.00 | 0 |
| Modern Aminos | 88.1 | $2.80 | 0 |
| Bench Grade Peptides | 86.8 | $4.20 | 2 |
| Polaris Peptides | 86.6 | $3.50 | 0 |
| Hydro Research Peptides | 86.5 | $3.60 | 0 |
| PeptidePlugs | 86.3 | $4.00 | 3 |
Ordered by overall evidence score. See every vendor listing Epithalon.
Questions
Is Epithalon from Koi Peptides third-party tested?
Yes. 1 certificate for Epithalon from Koi Peptides is on file, signed by Freedom Diagnostics Testing. Each names a lot, prints the assayed mass against the labelled mass, and links to the document it was read from. Freedom Diagnostics Testing also publishes a lookup, so the report can be confirmed at the laboratory rather than taken from the vendor.
How much does Epithalon cost at Koi Peptides?
$6.00 per milligram, from 10 mg at $59.95. The peer median across every vendor we price for Epithalon is $3.85 per mg, so this is +56% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is Koi Peptides a good place to buy Epithalon?
Koi Peptides scores 79.8 of 100 on the published rubric and ranks 15 overall, computed from its documentation rather than from opinion. For Epithalon specifically it has 1 certificate on file. ZC Labs lists it cheaper at $0.680 per mg.