These three names come up constantly, and most explanations assume you already know what GLP-1 means. Here's the honest comparison.
Start with the shared idea
All three copy signals your body already makes — the hormones that tell your brain you're full and help manage blood sugar. None of them is a stimulant. None of them is "burning fat" directly in the way old diet pills claimed.
Semaglutide — one switch
Known by the brand names Ozempic and Wegovy, semaglutide copies GLP-1 only. It's the most studied of the three by a wide margin, with years of published data behind it. If a newer compound is being evaluated, semaglutide is usually the yardstick.
Tirzepatide — two switches
Sold as Mounjaro and Zepbound, tirzepatide copies GLP-1 and GIP. GIP is a second gut hormone involved in blood sugar and fat storage. In head-to-head research, adding GIP has generally produced larger average results than GLP-1 alone.
Retatrutide — three switches
Retatrutide adds glucagon to GLP-1 and GIP. The first two mostly reduce how much you take in; glucagon is associated with the body using more of what it already has. It is the newest and least established of the three.
The comparison that matters
| Semaglutide | Tirzepatide | Retatrutide | |
|---|---|---|---|
| Signals copied | GLP-1 | GLP-1, GIP | GLP-1, GIP, glucagon |
| Depth of evidence | Most | Substantial | Earliest |
| Regulatory status | Approved for specific uses | Approved for specific uses | Investigational |
The trade-off nobody states plainly
There is an inverse relationship here. The compound with the most mechanisms has the least long-term data. The compound with the most data has the fewest mechanisms. "Newer" and "better established" point in opposite directions, and which matters more depends entirely on what question you're asking.
Common misunderstanding
More switches does not automatically mean more of everything good. Each pathway a compound touches is also a pathway where effects can occur. That's precisely why trials take years.
Dissolv supplies these compounds for laboratory research only. They are not medicines as supplied by us, are not for human or veterinary consumption, and nothing here is medical advice, dosing guidance, or a recommendation. Approval status varies by country and changes over time.
