The Journal

Peptide research, read closely.

Every article names the species of every study and stops where the evidence stops. Educational only — your veterinarian has the last word.

Latest · August 30, 2026

GHK-Cu for Skin and Coat: What Studies Suggest

GHK-Cu is a copper-binding tripeptide with decades of skin research behind it. Here is what the peer-reviewed studies actually measured, which species they used, and what none of them prove for your pet's coat.

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cats · dogs — August 30, 2026

KPV and Gut Health in Cats and Dogs: The Emerging Science

KPV is a three-amino-acid fragment with a real research record in mouse gut inflammation. Here is what the studies found, why delivery is the hard part, and what has never been tested in cats or dogs.

dogs · cats · horses — August 30, 2026

What Are Peptides? A Pet Owner's Guide to the Research

Peptides are short chains of amino acids that act as biological signals. A plain-language guide to the peptides studied in dogs, cats, and horses, what the peer-reviewed research says, and where the evidence runs out.