Also sold as Semax Spray -
For 510mg of Semax, the lowest total is Crush Research at $568.01 ($1.03 per mg, as 11 × 50mg), including its multi-vial discount, code PLUG (10% off) and free shipping. Next: Real Peptides at $1,036.80, then Glacier Aminos at $1,133.92. We track 3 vendors carrying it.
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| Vendor | 60mg | 510mg | Per mg | Codes applied | Testing |
|---|---|---|---|---|---|
| Crush Researchprofile | $133.50 | $568.01 ships 550mg: 11 × 50mg | $1.03 | PLUG 10% |
Purity, Endotoxin, Metals |
| Real Peptidesprofile | $204.95 | $1,036.80 ships 540mg: 12 × 45mg | $1.92 | PLUG 20% |
Purity, Endotoxin* |
| Glacier Aminosprofile | $251.98 | $1,133.92 ships 550mg: 11 × 50mg | $2.06 | PLUG 10% |
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 | $108.95 · Real Peptides | $864 · Real Peptides | $1.92 |
| 50mg | 2 | $72.75 · Crush Research | $568.01 · Crush Research | $1.03 |
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, Crush Research is lowest at $133.50 total. For 510mg, Crush Research is lowest at $568.01 total ($1.03 per mg), including its multi-vial discount, code PLUG (10% off) and free shipping.
For 510mg, the lowest total overall — Crush Research at $568.01 — is also from a vendor that publishes endotoxin testing on every batch. 2 of the 3 vendors do.
Semax is sold in 45mg and 50mg vials. 45mg × 10: Real Peptides at $864 ($1.92 per mg); 50mg × 10: Crush Research at $568.01 ($1.03 per mg).
Crush Research and Glacier Aminos publish heavy-metals testing on every batch.
For 510mg, totals run from $568.01 to $1,133.92 across 3 vendors — $1.03 to $2.06 per mg — including each vendor's multi-vial discounts, our discount codes and shipping. Before any discounts, list prices run from $1.35 to $2.80 per mg.