Vendor and compound
SS-31 from PeptidePlugs
PeptidePlugs lists SS-31 at $4.00 per mg, 26% under the $5.40 peer median. 7 third-party certificates for this compound from this vendor are on file, assayed by Freedom Diagnostics Testing, averaging 99.91% purity. The cheapest listed price for SS-31 anywhere in the index is $3.00 per mg at Hydro Research Peptides.
All SS-31 vendors · PeptidePlugs profile · scores 82.6 of 100, rank 5 · 7 certificates for this compound · verified 5 Nov 2026
What it costs
| Vial | Listed price | Per mg | vs peer median | Listing |
|---|---|---|---|---|
| 10 mg | $40 | $4.00 | -26% | SS-31 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 |
|---|---|---|---|---|---|
| 112450L-DK | 1 Sept 2026 | 99.94% | 50 mg → 48.24 mg | Freedom Diagnostics Testing | Open |
| 7208100C-DK | 22 Aug 2026 | 99.87% | 10 mg → 10.56 mg | Freedom Diagnostics Testing | Open |
| 160-450L-DK | 16 Jul 2026 | 99.93% | 50 mg → 51.51 mg | Freedom Diagnostics Testing | Open |
| 160-450X-DK | 16 Jul 2026 | 99.89% | 50 mg → 48.72 mg | Freedom Diagnostics Testing | Open |
| 144-01-DK | 22 Jun 2026 | 99.95% | 10 mg → 10.74 mg | Freedom Diagnostics Testing | Open |
| 122-02-DK | 20 May 2026 | 99.89% | 50 mg → 49.48 mg | Freedom Diagnostics Testing | Open |
| 121-A-D | 22 Apr 2026 | 99.87% | 100 mg → 109.81 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 SS-31
| Vendor | Score | Per mg | Certificates for this compound |
|---|---|---|---|
| Origin Labs | 89.1 | — | 1 |
| ZC Labs | 87.2 | $3.75 | 1 |
| Bench Grade Peptides | 79.4 | $8.00 | 1 |
| Hydro Research Peptides | 78.7 | $3.00 | 0 |
| One Aminos | 78 | $4.50 | 1 |
| Koi Peptides | 75.1 | $5.00 | 0 |
| NeuroLabs Research | 74.6 | $5.40 | 0 |
| Ascension Peptides | 74.4 | $8.00 | 1 |
Ordered by overall evidence score. See every vendor listing SS-31.
Questions
Is SS-31 from PeptidePlugs third-party tested?
Yes. 7 certificates for SS-31 from PeptidePlugs 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 SS-31 cost at PeptidePlugs?
$4.00 per milligram, from 10 mg at $40. The peer median across every vendor we price for SS-31 is $5.40 per mg, so this is -26% against the market. Prices are normalised per milligram so vials of different sizes compare fairly.
Is PeptidePlugs a good place to buy SS-31?
PeptidePlugs scores 82.6 of 100 on the published rubric and ranks 5 overall, computed from its documentation rather than from opinion. For SS-31 specifically it has 7 certificates on file. Hydro Research Peptides lists it cheaper at $3.00 per mg.