Vol. 1 · September 2026

The compound files

One file per peptide. What it is, what the animal research says, and what owners report talking about.

01

BPC-157

The most-studied recovery peptide in the animal literature. A short protein fragment modeled on a stomach protein, anchored by decades of rodent research and one well-known pharmacokinetic study in beagle dogs.

5 min read

02

GHK-Cu

Three amino acids and a copper atom, studied since the 1980s. GHK-Cu built its reputation in skin and connective-tissue research, and the coat-quality conversation grew straight out of that work.

5 min read

03

Glutathione

Every cell in your dog, cat, or horse already makes it. Researchers have spent decades asking what happens when they can't make enough.

5 min read

04

KPV

Three amino acids clipped from a hormone your pet's body already makes, and one of the more studied gut-immune peptides in the preclinical literature. Here is what the mouse colitis work actually examined, and why digestive-upset owners keep bringing it up.

5 min read

05

TB-500

A lab-made copy of a peptide your animal's body already produces. TB-500 is a synthetic fragment of thymosin beta-4 studied for cell migration and soft-tissue maintenance, with an unusually deep horse literature courtesy of the racing world.

5 min read