Also sold as Semax Spray -
For 510mg of Semax, the lowest total is Crush Research at $668.25 ($1.22 per mg, as 11 × 50mg), including code PLUG (10% off) and free shipping. Next: Glacier Aminos at $685.95, then PeptidePlugs at $708.75. We track 5 vendors carrying it.
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| Vendor | 60mg | 510mg | Per mg | Codes applied | Testing |
|---|---|---|---|---|---|
| Crush Researchprofile | $133.50 | $668.25 ships 550mg: 11 × 50mg | $1.22 | PLUG 10% |
Purity, Endotoxin, Metals |
| Glacier Aminosprofile | $111.99 | $685.95 ships 550mg: 11 × 50mg | $1.25 | PLUG 10% |
Purity, Endotoxin, Metals |
| PeptidePlugsprofile | $132.50 | $708.75 ships 532mg: 1 × 4-pack of 76mg + 1 × 3-pack of 76mg | $1.33 | PLUG 10% first order only |
Purity, Endotoxin, Metals* |
| Real Peptidesprofile | $201.95 | $1,036.80 ships 540mg: 12 × 45mg | $1.92 | — | Purity, Endotoxin* |
| Orbitrexprofile | $271.98 | $1,495.91 ships 550mg: 11 × 50mg | $2.72 | PLUG 15% |
Purity, Endotoxin, Metals* |
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 510mg total. Confirm the final price at checkout. *Testing marked with an asterisk is present on some batches, not all.
Buy at Crush Research — code PLUG → See the full breakdown →| Strength | Vendors | Single vial | 10-vial kit | Per mg (kit) |
|---|---|---|---|---|
| 45mg | 1 | $105.95 · Real Peptides | $864 · Real Peptides | $1.92 |
| 50mg | 3 | $72.75 · Crush Research | $668.25 · Crush Research | $1.22 |
| 76mg | 1 | $132.50 · PeptidePlugs | $843.75 · PeptidePlugs | $1.11 |
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 60mg, Glacier Aminos is lowest at $111.99 total. For 510mg, Crush Research is lowest at $668.25 total ($1.22 per mg), including code PLUG (10% off) and free shipping.
For 510mg, the lowest total overall — Crush Research at $668.25 — is also from a vendor that publishes endotoxin testing on every batch. 4 of the 5 vendors do.
Semax is sold in 45mg, 50mg and 76mg vials. 45mg × 10: Real Peptides at $864 ($1.92 per mg); 50mg × 10: Crush Research at $668.25 ($1.22 per mg); 76mg × 10: PeptidePlugs at $843.75 ($1.11 per mg).
Crush Research and Glacier Aminos publish heavy-metals testing on every batch. PeptidePlugs and Orbitrex publish it on some batches.
For 510mg, totals run from $668.25 to $1,495.91 across 5 vendors — $1.22 to $2.72 per mg — including each vendor's multi-vial discounts, our discount codes and shipping. Before any discounts, list prices run from $1.35 to $3.20 per mg.