Semaglutide vs Tirzepatide vs Retatrutide – Price Comparison 2026
By Peptideals · Updated March 2026
GLP-1 and GLP-1/GIP research peptides are among the most searched compounds in 2026. Prices vary significantly across vendors and formulations. Here's how Semaglutide, Tirzepatide, and Retatrutide compare on price across our 24+ vendor network.
Price Overview by Compound
Semaglutide
GLP-1 receptor agonist. Most widely available. Generally the most affordable of the three.
Compare Semaglutide prices →Tirzepatide
GLP-1 / GIP dual agonist. More potent than Semaglutide. Prices have dropped significantly in 2026.
Compare Tirzepatide prices →Retatrutide
GLP-1 / GIP / glucagon triple agonist. Newest compound, premium pricing but becoming more accessible.
Compare Retatrutide prices →Which Is the Best Value?
On a per-mg basis, Semaglutide is typically the most affordable. Tirzepatide offers more potency per mg, making it competitive on a dose-adjusted basis. Retatrutide is the newest and priciest, but prices have been falling as more vendors stock it.
The best strategy is to check current live prices using Peptideals — prices shift weekly as vendors run sales and adjust inventory.
See Live Prices for All GLP-1 Peptides
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