Groups
GLP-1 and the incretins explained
Why your gut releases hormones the moment you eat, what GLP-1 and GIP actually do, and why a copy lasts longer than the original.
From single to triple agonist
Semaglutide, tirzepatide and retatrutide side by side: which receptors they hit, what each step adds and why glucagon is the newest direction.
Amylin: the second satiety signal
Besides GLP-1 there is a second route to satiety, through the pancreas. What amylin does and why it is often studied next to a GLP-1 analogue.
The growth hormone axis: GHRH, ghrelin, GH and IGF-1
Four links, two buttons and a whole family of peptides. Why so many different substances exist that all drive the same hormone.
Repair peptides: BPC-157 and TB-500
Two peptides often named in one breath but working along very different routes. Where they come from and what the literature says.
Copper peptides: GHK-Cu and AHK-Cu
Three amino acids holding a copper ion. Why the colour tells you whether the complex is intact and what separates the two variants.
Neuropeptides: Semax, Selank and family
A group of short peptides from Russian research, all derived from a natural substance with the hormonal part removed.
Mitochondrial peptides: MOTS-c, humanin and SS-31
Peptides that come not from the cell nucleus but from the power plants themselves. A field barely twenty years old.