Also sold as MTP-31, MDS-31, S-31-S, PUR-31, FPC-31 Closeout, RR-31, MTS-31, FPC-31, SS-31, US fill/finish
For 100mg of SS-31, the lowest total is Forge Performance at $181 ($1.81 per mg, as 2 × 50mg), including its multi-vial discount, code PLUG (10% off) and $10 shipping. Next: Regenerative Research at $199.15, then Crush Research at $201.69. We track 13 vendors carrying it.
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| Vendor | 10mg | 100mg | Per mg | Codes applied | Testing |
|---|---|---|---|---|---|
| Forge Performanceprofile | $100 | $181 | $1.81 | PLUG 10% |
Purity, Endotoxin, Metals |
| Regenerative Researchprofile | $110.95 | $199.15 | $1.99 | PLUG 15%, WELCOME15 15% first order only |
Purity, Endotoxin, Metals* |
| Crush Researchprofile | $40.35 | $201.69 | $2.02 | PLUG 10% |
Purity, Endotoxin, Metals |
| Rescue Research USAprofile | $108.98 | $207.97 | $2.08 | PLUG 10% |
Purity, Endotoxin*, Metals* |
| PeptidePlugsprofile | $56 | $208.10 | $2.08 | PLUG 10% first order only |
Purity, Endotoxin, Metals* |
| Real Peptidesprofile | $35.99 | $220.31 | $2.20 | PLUG 20% |
Purity, Endotoxin* |
| Peptide Supply Coprofile | $53 | $225.20 | $2.25 | PLUG 10%, auto 8% |
Purity, Endotoxin* |
| Peptide Partnersprofile | $108.90 | $261.90 | $2.62 | PLUG 10% |
Purity, Endotoxin, Metals |
| Puratek Peptidesprofile | $74.44 | $269.82 ships 120mg: 4 × 30mg | $2.25 | THEPEPTIDEPLUG 10% |
Purity, Endotoxin, Metals* |
| TAGS Compoundsprofile | $57 | $292.50 | $2.92 | PLUG 10% |
Purity, Endotoxin |
| Glacier Aminosprofile | $55.39 | $310.44 | $3.10 | PLUG 10% |
Purity, Endotoxin, Metals |
| Orbitrexprofile | $95.48 | $359.98 | $3.60 | PLUG 10% |
Purity, Endotoxin, Metals* |
| Blank Peptidesprofile | $59 | $377.50 | $3.77 | X20 20%, PLUG 10% |
Purity, Endotoxin |
Totals come from the same optimizer as our comparison tool: each vendor's cheapest way to supply the amount, with its multi-vial and mix-and-match discounts, the discount codes we hold for that vendor, and shipping to the US. Vendors reach each amount with whatever vial sizes they sell, and a vendor without a matching size may ship slightly more. Codes marked "first order only" assume a first order. "Per mg" is for the 100mg total. Confirm the final price at checkout. *Testing marked with an asterisk is present on some batches, not all.
Buy at Forge Performance — code PLUG → See the full breakdown →| Strength | Vendors | Single vial | 10-vial kit | Per mg (kit) |
|---|---|---|---|---|
| 10mg | 9 | $35.99 · Real Peptides | $201.69 · Crush Research | $2.02 |
| 30mg | 1 | $74.44 · Puratek Peptides | $573.37 · Puratek Peptides | $1.91 |
| 50mg | 8 | $100 · Forge Performance | $524.50 · Peptide Supply Co | $1.05 |
Each strength is priced using only that vial size (single vials or packs of it), the same as choosing that size in the comparison tool. Totals include multi-vial discounts, our discount codes and US shipping.
It depends on how much you buy, because most vendors discount multi-vial orders. For 10mg, Real Peptides is lowest at $35.99 total. For 100mg, Forge Performance is lowest at $181 total ($1.81 per mg), including its multi-vial discount, code PLUG (10% off) and $10 shipping.
For 100mg, the lowest total overall — Forge Performance at $181 — is also from a vendor that publishes endotoxin testing on every batch. 10 of the 13 vendors do.
SS-31 is sold in 10mg, 30mg and 50mg vials. 10mg × 10: Crush Research at $201.69 ($2.02 per mg); 30mg × 10: Puratek Peptides at $573.37 ($1.91 per mg); 50mg × 10: Peptide Supply Co at $524.50 ($1.05 per mg).
Forge Performance, Crush Research, Peptide Partners and Glacier Aminos publish heavy-metals testing on every batch. Regenerative Research, Rescue Research USA, PeptidePlugs, Puratek Peptides and Orbitrex publish it on some batches.
For 100mg, totals run from $181 to $377.50 across 13 vendors — $1.81 to $3.77 per mg — including each vendor's multi-vial discounts, our discount codes and shipping. Before any discounts, list prices run from $1.25 to $7.00 per mg.