Your body already makes these.

Short chain. Not a mystery.

Amino acids click together. A handful is a peptide. Hundreds is a protein. The short ones each do one job. You already run on them.

Research vials are copies of those. Isolated so one thing can be studied at a time.

They’ve been medicine since the 1920s.

What’s new is that more people started hearing about them. Not the chemistry.

1. 1921 Insulin isolated. First peptide drug.
2. 1950s Insulin gets sequenced. People can finally read the chain.
3. 1970s–80s Labs start making short peptides on purpose. Oxytocin, vasopressin, early growth-hormone ones.
4. 2005 First GLP-1 shot. The chain came from a Gila monster peptide.
5. 2021–now Weight-loss shots got famous. Then forums and vendors made the rest of the list easy to find.

Why it feels like they “just appeared.”

Weight-loss shots got huge. Once that happened, every other peptide got a name, a Telegram, and a product page. The science is old. The shops are new.

They’re grouped by what people use them for.

The full list is its own page.

A few you’ll actually hear about.

Short versions. Tap a type, or open the full list.