Personal Opinion: Having reviewed extensive research on peptides for hair applications, I find GHK-Cu particularly compelling because it addresses hair loss through so many different pathways simultaneously
Importantly, Retatrutide's unique triple receptor agonismtargeting GLP-1, GIP, and glucagon receptorsappears well-tolerated, with adverse events largely consistent with known effects from the broader GLP-1 class, primarily mild gastrointestinal symptoms such as nausea, decreased appetite, and occasional diarrhea, typically resolving within a few weeks of initiation
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Anti-inflammatory effects
These weekly injections reshape bodies and push demand for cosmetic treatments and tweakments
Wegovy, Mounjaro, Zepbound) are mostly single-use and require multiple devices per month, while pen injectors (e.g., Ozempic) are multi-use, needing fewer devices overall