Semaglutide vs Tirzepatide: price and facts compared (2026)
At the standard size, Semaglutide is the cheaper of the two today at $49.99 from Modified Aminos. Both are research-use-only materials and are not substitutes for each other.
| Semaglutide | Tirzepatide | |
|---|---|---|
| Category | GLP-1 | GLP-1 |
| Standard size | 10mg | 30mg |
| All sizes | 5mg, 10mg, 20mg | 10mg, 30mg, 60mg |
| Cheapest now | $49.99 at Modified Aminos | $119.99 at Modified Aminos |
| Price per mg | $5.00/mg | $4.00/mg |
| Vendors | 3 | 3 |
| Forms | Vial | Vial |
| Regulatory status | FDA-approved as Ozempic (2017) and Wegovy (2021). The research vial is not the approved product. | FDA-approved as Mounjaro (2022) and Zepbound (2023). The research vial is not the approved product. |
| Stock | In stock | In stock |
Semaglutide is a GLP-1 receptor agonist peptide and the active compound in Ozempic and Wegovy. Research vendors sell it lyophilized in 5–20 mg vials.
Semaglutide prices →Tirzepatide is a dual GIP/GLP-1 receptor agonist peptide and the active compound in Mounjaro and Zepbound. Research-grade tirzepatide is sold lyophilized in 10–60 mg vials.
Tirzepatide prices →Questions
Prices are read from each vendor's product page weekly, converted to the price after any listed code, and shown before shipping. Stock status is captured at the same time. Rankings are by price only. PeptideTech earns a commission when you buy through a link; it never changes the order.
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