Vendor and compound
Tesamorelin from ZC Labs
ZC Labs lists Tesamorelin at $3.55 per mg, 56% under the $8.00 peer median. 4 third-party certificates for this compound from this vendor are on file, assayed by Freedom Diagnostics Testing, averaging 99.63% purity. That is the cheapest listed price for Tesamorelin in the index.
All Tesamorelin vendors · ZC Labs profile · scores 83.2 of 100, rank 11 · 4 certificates for this compound · verified 18 Aug 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| 10 mg | $35.5 | $3.55 | -56% | Tesamorelin 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. Codepepindex· 10% off applies at checkout.
What the laboratory found
| Lot | Assayed | Purity | Label → assayed | Laboratory | Record |
|---|---|---|---|---|---|
| ZCLa2608070015 | 9 Aug 2026 | 99.96% | 10 mg → 10 mg | Freedom Diagnostics Testing | Open |
| ZCLa2607301113 | 4 Aug 2026 | 99.06% | 10 mg → 11.93 mg | Freedom Diagnostics Testing | Open |
| ZCLa2607240722 | 28 Jul 2026 | 99.81% | 10 mg → 11.18 mg | Freedom Diagnostics Testing | Open |
| ZCLa2606080087 | 9 Jun 2026 | 99.67% | 10 mg → 11.22 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 Tesamorelin
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Next Gen Peptides | 93.8 | $5.00 | 6 |
| Ascend Science | 90.1 | $6.30 | 3 |
| Amino Club | 88.3 | $7.00 | 0 |
| Modern Aminos | 88.1 | $7.10 | 2 |
| Origin Labs | 87.7 | — | 2 |
| Bench Grade Peptides | 86.8 | $11.80 | 3 |
| Polaris Peptides | 86.6 | $6.50 | 3 |
| PeptidePlugs | 86.3 | $7.00 | 4 |
Ordered by overall evidence score. See every vendor listing Tesamorelin.
Questions
Is Tesamorelin from ZC Labs third-party tested?
Yes. 4 certificates for Tesamorelin from ZC Labs are 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 Tesamorelin cost at ZC Labs?
$3.55 per milligram, from 10 mg at $35.5. The peer median across every vendor we price for Tesamorelin is $8.00 per mg, so this is -56% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is ZC Labs a good place to buy Tesamorelin?
ZC Labs scores 83.2 of 100 on the published rubric and ranks 11 overall, computed from its documentation rather than from opinion. For Tesamorelin specifically it has 4 certificates on file.