Also sold as GLP-1 Semaglutide, 1G-SGT, GLA-1 SM, PUR-1S, GLP-1 SM, GLP1-Sema, Single Agonist, Revitalized SM
For 100mg of Semaglutide, the lowest total is FirstForm Peptides at $134.95 ($1.35 per mg, as 10 × 10mg), including its multi-vial discount, code PLUG (10% off) and $15 shipping. Next: Glacier Aminos at $178.17, then PeptidePlugs at $182. We track 9 vendors carrying it.
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| Vendor | 10mg | 100mg | Per mg | Codes applied | Testing |
|---|---|---|---|---|---|
| FirstForm Peptidesprofile | $37.49 | $134.95 | $1.35 | PLUG 10% + B2G1 buy 2 get 1 free |
Purity, Endotoxin, Metals |
| Glacier Aminosprofile | $63.58 | $178.17 ships 105mg: 7 × 15mg | $1.70 | PLUG 10% |
Purity, Endotoxin, Metals |
| PeptidePlugsprofile | $47 | $182 | $1.82 | PLUG 10% first order only |
Purity, Endotoxin, Metals* |
| Crush Researchprofile | $35.49 | $189.39 | $1.89 | PLUG 10% |
Purity, Endotoxin, Metals |
| Puratek Peptidesprofile | $38.44 | $220.18 | $2.20 | THEPEPTIDEPLUG 10% |
Purity, Endotoxin, Metals* |
| Orbitrexprofile | $48.48 | $271.93 | $2.72 | PLUG 15% |
Purity, Endotoxin, Metals* |
| Blank Peptidesprofile | $49.60 | $307 | $3.07 | BLACKFRIDAY 50% + PLUG 10% |
Purity, Endotoxin |
| Modern Aminosprofile | $54.60 | $364.32 | $3.64 | PLUG 10% |
Purity, Endotoxin, Metals* |
| Peptide Partnersprofile | $117.90 | $466.20 | $4.66 | 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 100mg total. Confirm the final price at checkout. *Testing marked with an asterisk is present on some batches, not all.
Buy at FirstForm Peptides — code PLUG → See the full breakdown →| Strength | Vendors | Single vial | 10-vial kit | Per mg (kit) |
|---|---|---|---|---|
| 5mg | 1 | $40.20 · Modern Aminos | $231.84 · Modern Aminos | $4.64 |
| 10mg | 8 | $35.49 · Crush Research | $134.95 · FirstForm Peptides | $1.35 |
| 15mg | 1 | $63.58 · Glacier Aminos | $215.96 · Glacier Aminos | $1.44 |
| 20mg | 3 | $65 · PeptidePlugs | $270 · PeptidePlugs | $1.35 |
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, Crush Research is lowest at $35.49 total. For 100mg, FirstForm Peptides is lowest at $134.95 total ($1.35 per mg), including its multi-vial discount, code PLUG (10% off) and $15 shipping.
For 100mg, the lowest total overall — FirstForm Peptides at $134.95 — is also from a vendor that publishes endotoxin testing on every batch. 9 of the 9 vendors do.
Semaglutide is sold in 5mg, 10mg, 15mg and 20mg vials. 5mg × 10: Modern Aminos at $231.84 ($4.64 per mg); 10mg × 10: FirstForm Peptides at $134.95 ($1.35 per mg); 15mg × 10: Glacier Aminos at $215.96 ($1.44 per mg); 20mg × 10: PeptidePlugs at $270 ($1.35 per mg).
FirstForm Peptides, Glacier Aminos, Crush Research and Peptide Partners publish heavy-metals testing on every batch. PeptidePlugs, Puratek Peptides, Orbitrex and Modern Aminos publish it on some batches.
For 100mg, totals run from $134.95 to $466.20 across 9 vendors — $1.35 to $4.66 per mg — including each vendor's multi-vial discounts, our discount codes and shipping. Before any discounts, list prices run from $1.50 to $9.90 per mg.