What are peptides, and why is everyone suddenly to them for weight loss

Peptides are showing up everywhere right now — for weight loss, injury recovery, skin health, and longevity. But most of the conversation skips straight to results without explaining what peptides actually are or how they work.

Here's what the research actually shows, why retatrutide is generating so much attention compared to existing GLP-1 medications, and what you need to understand about where regulation currently stands before the conversation moves any further.