Vendor and compound
Tesamorelin from Ascend Science
Ascend Science lists Tesamorelin at $6.30 per mg, 21% under the $8.00 peer median. 3 third-party certificates for this compound from this vendor are on file, assayed by ILS Laboratories and Kovera Labs and Kovera Labs and/or ILS Labs, averaging 99.64% purity. The cheapest listed price for Tesamorelin anywhere in the index is $3.55 per mg at ZC Labs.
All Tesamorelin vendors · Ascend Science profile · scores 90.1 of 100, rank 2 · 3 certificates for this compound · verified 18 Aug 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| 10 mg | $63 | $6.30 | -21% | Tesamorelin |
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· 15% off applies at checkout.
What the laboratory found
| Lot | Assayed | Purity | Label → assayed | Laboratory | Record |
|---|---|---|---|---|---|
| AS-TSM10-2 | 26 Jul 2026 | 99.76% | 10 mg → 10.43 mg | ILS Laboratories | Open |
| AS-TSM20 | 17 Jul 2026 | 99.53% | 20 mg → 19.99 mg | Kovera Labs | Open |
| AS-TSM5 | 9 Jul 2026 | 99.63% | 10 mg → 5.58 mg | Kovera Labs and/or ILS Labs | Open |
Other vendors selling Tesamorelin
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Next Gen Peptides | 93.8 | $5.00 | 6 |
| 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 |
| Simple Peptide | 84.9 | $7.50 | 2 |
Ordered by overall evidence score. See every vendor listing Tesamorelin.
Questions
Is Tesamorelin from Ascend Science third-party tested?
Yes. 3 certificates for Tesamorelin from Ascend Science are on file, signed by ILS Laboratories and Kovera Labs and Kovera Labs and/or ILS Labs. Each names a lot, prints the assayed mass against the labelled mass, and links to the document it was read from.
How much does Tesamorelin cost at Ascend Science?
$6.30 per milligram, from 10 mg at $63. The peer median across every vendor we price for Tesamorelin is $8.00 per mg, so this is -21% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is Ascend Science a good place to buy Tesamorelin?
Ascend Science scores 90.1 of 100 on the published rubric and ranks 2 overall, computed from its documentation rather than from opinion. For Tesamorelin specifically it has 3 certificates on file. ZC Labs lists it cheaper at $3.55 per mg.