Lab records by peptide
SS-31 vendors
Vendors that sell SS-31, ranked by what independent labs found in their vials: 20 tests across 7 shops since March 2026. 2 shops graded A or B for SS-31; 2 shops graded D or E.
- 71%of SS-31 tests passed; median purity 99.80%
- 17%of vials held more than 5% less SS-31 than the label
- Most common failurepurity under 99.5% (4 tests). In 1 vial the lab could not confirm it was SS-31 at all.
- Last 90 days7 tests from 4 shops, 4 failed. Newest result Sep 17, 2026.
SS-31 vendors ranked by lab record
The grade is for SS-31 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 |
|---|---|---|---|---|---|---|
| Retalux | A | 4 | 4/4 | 99.70% | 0/4 | Jun 16, 2026 |
| LiliPeptide | A | 3 | 3/3 | 99.90% | 1/3 | Jul 17, 2026 |
| Reta-PeptideLast failure Apr 23, 2026: purity under 99.5% | C | 4 | 3/4 | 99.70% | 1/4 | Jun 12, 2026 |
| Dankang BioHealthLast failure Sep 14, 2026: purity under 99.5% | E | 3 | 1/3 | 99.65% | 0/2 | Sep 14, 2026 |
| Heman Peptide HMLast failure Sep 10, 2026: purity under 99.5% | E | 3 | 1/3 | 99.10% | 0/3 | Sep 10, 2026 |
| Above All Peptides | – | 2 | – | 98.85% | 1/2 | Sep 17, 2026 |
| Blessed Peptides | – | 1 | – | 99.80% | – | Apr 20, 2026 |
Recent failed SS-31 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.
- Dankang BioHealthSep 14, 2026 · Krause Analyticalpurity under 99.5% · purity 99.40% · fill -2.0% · Certificate
- Heman Peptide HMSep 10, 2026 · Krause Analyticalpurity under 99.5% · purity 98.90% · fill +11.0% · Certificate
- Heman Peptide HMAug 13, 2026 · Krause Analyticalpurity under 99.5% · purity 99.10% · fill +6.0% · Certificate
- Dankang BioHealthJul 1, 2026 · Krause Analyticalthe lab could not confirm it was the labelled peptide · Certificate
- Reta-PeptideApr 23, 2026 · Krause Analyticalpurity under 99.5% · purity 98.70% · fill -21.0% · Certificate
Before you order SS-31
- Look at the shop's grade for SS-31, not its average. Retalux has the most SS-31 tests (4); a shop with one or two tests has not shown it is consistent.
- 100% 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.