Lab records by peptide
MOTS-c vendors
Vendors that sell MOTS-c, ranked by what independent labs found in their vials: 83 tests across 21 shops since February 2026. 1 shop graded A or B for MOTS-c; 13 shops graded D or E.
- 34%of MOTS-c tests passed; median purity 98.90%
- 12%of vials held more than 5% less MOTS-c than the label
- Most common failurepurity under 99.5% (45 tests). In 8 vials the lab could not confirm it was MOTS-c at all.
- Last 90 days26 tests from 13 shops, 16 failed. Newest result Oct 12, 2026.
MOTS-c vendors ranked by lab record
The grade is for MOTS-c only, not the shop's whole catalog. A shop can pass on one peptide and fail on another. Shops with the same grade are ordered by number of tests.
| Vendor | Grade | Tests | Passed | Median purity | Under-filled | Last test |
|---|---|---|---|---|---|---|
| Warrior Makers | A | 2 | 2/2 | 99.90% | 0/2 | Oct 12, 2026 |
| RetaluxLast failure Jun 16, 2026: purity under 99.5% | D | 3 | 2/3 | 99.50% | 0/3 | Jun 16, 2026 |
| YimeiNo working storefront foundLast failure Apr 28, 2026: purity under 99.5% | D | 3 | 2/3 | 99.90% | 0/3 | May 6, 2026 |
| LiliPeptideLast failure Aug 3, 2026: purity under 99.5% | E | 9 | 4/9 | 99.30% | 1/9 | Aug 3, 2026 |
| Reta-PeptideLast failure Oct 12, 2026: purity under 99.5% | E | 9 | 5/9 | 99.60% | 0/9 | Oct 12, 2026 |
| Dankang BioHealthLast failure Jul 1, 2026: purity under 99.5% | E | 6 | 1/6 | 98.75% | 2/6 | Jul 1, 2026 |
| NexaphLast failure Aug 13, 2026: purity under 99.5% | E | 6 | 1/6 | 98.50% | 1/6 | Sep 25, 2026 |
| Qing Li PeptideLast failure Aug 4, 2026: purity under 99.5% | E | 6 | 2/6 | 98.90% | 0/6 | Sep 25, 2026 |
| Huaian Hanyou PeptideLast failure Jul 17, 2026: purity under 99.5% | E | 5 | 1/5 | 99.40% | 0/4 | Jul 17, 2026 |
| HkRoidsLast failure Jul 14, 2026: purity under 99.5% | E | 4 | 2/4 | 99.80% | 0/3 | Jul 14, 2026 |
| Inno PeptidesLast failure Aug 12, 2026: purity under 99.5% | E | 4 | 2/4 | 98.95% | 1/4 | Sep 4, 2026 |
| LumiraLast failure Jun 12, 2026: purity under 99.5% | E | 4 | 1/4 | 98.60% | 1/3 | Oct 12, 2026 |
| Go Alpha Labs PeptidesLast failure Jun 26, 2026: purity under 99.5% | E | 3 | 1/3 | 98.00% | 1/3 | Jun 26, 2026 |
| ZePeptideLast failure Sep 4, 2026: the lab could not confirm it was the labelled peptide | E | 3 | 1/3 | 99.50% | 1/2 | Sep 24, 2026 |
| Heman Peptide HMLast failure Sep 17, 2026: purity under 99.5% | – | 4 | 0/4 | 98.70% | 0/4 | Sep 17, 2026 |
| Henan Sahe PeptideLast failure Jul 1, 2026: the lab could not confirm it was the labelled peptide | – | 4 | 0/4 | 99.00% | 0/1 | Jul 1, 2026 |
| Welon Peptide SolutionsLast failure Apr 28, 2026: purity under 99.5% | – | 3 | 0/3 | 98.30% | 1/3 | Apr 28, 2026 |
| Guangzhou AoyuLast failure Jun 8, 2026: the lab could not confirm it was the labelled peptide | – | 2 | 0/2 | 98.80% | 0/1 | Jun 8, 2026 |
| Above All Peptides | – | 1 | – | 98.70% | 0/1 | Sep 17, 2026 |
| True Signature | – | 1 | – | 98.10% | 0/1 | Aug 12, 2026 |
| VoriLabs | – | 1 | – | 99.90% | 0/1 | Jul 10, 2026 |
Recent failed MOTS-c tests
The newest results that failed, with the reason and the lab's certificate. Check whether your batch number matches before you trust a shop's own paperwork.
- Reta-PeptideOct 12, 2026 · Krause Analyticalpurity under 99.5% · purity 98.40% · fill 0.0% · Certificate
- Heman Peptide HMSep 17, 2026 · Krause Analyticalpurity under 99.5% · purity 98.90% · fill -3.0% · Certificate
- Heman Peptide HMSep 10, 2026 · Krause Analyticalpurity under 99.5% · purity 98.50% · fill +15.0% · Certificate
- ZePeptideSep 4, 2026 · Krause Analyticalthe lab could not confirm it was the labelled peptide · Certificate
- NexaphAug 13, 2026 · Krause Analyticalpurity under 99.5% · purity 98.50% · fill +1.0% · Certificate
- Inno PeptidesAug 12, 2026 · Krause Analyticalpurity under 99.5% · purity 98.30% · fill -9.0% · Certificate
MOTS-c vendors that closed or went offline
Each status is quoted from its source. A shop with no working website may still sell through messaging apps, which is a reason for more caution, not less.
- YimeiNo working storefront found (Finnrick) · last MOTS-c test May 6, 2026
The full list is on closed peptide vendors.
Before you order MOTS-c
- Look at the shop's grade for MOTS-c, not its average. LiliPeptide has the most MOTS-c tests (9); a shop with one or two tests has not shown it is consistent.
- 98% of these vials were bought and sent in by customers; the rest were sent by Finnrick or by the shop itself. Results from vials a shop chose to send are the weakest evidence.
- 2 labs tested them, mostly Krause Analytical and BTLabs. Ask for the certificate for your batch and check it on the lab's own site.
- Run the vendor checklist before paying, and read how the grades work.
Research peptides are sold for laboratory use only. This page reports lab results; it is not medical advice.