Klow

Our gut-and-immune blend, built around the KPV research.

$109.99$131.99Single vial

Third-party tested
American made
Certified lab

Important: This product is a peptide compound sold as an animal supplement. It has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease. This product is not a substitute for veterinary care. Always consult a licensed veterinarian before giving any supplement to your animal. For animals only — not for human use.

The research context

Klow is our blend for owners following the gut-health and immune-balance literature, anchored by the KPV tripeptide. Single vial, third-party tested, made in a certified US laboratory with a certificate of analysis for every lot.

Questions about whether Klow fits your animal's situation are for your veterinarian — they know the history, and the literature is preclinical.

Keep reading

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

Questions

About Klow

What is in Klow?

Klow is a proprietary blend anchored by KPV, the tripeptide studied for gut lining and immune-balance research. Each lot ships with a third-party certificate of analysis.

Why is it called Klow?

It is our KPV-anchored blend for the gut-and-immune corner of the literature — a short name for a focused formula.

Which animals is Klow researched for?

The anchor literature spans canine and feline models. Discuss the research with your veterinarian to decide what fits your animal.

We don't publish protocols or usage guidance. For community research reports, we like The Pet Peptide Ledger. A community-run research library we read ourselves.

Also researched

Full collection

A beagle mid-pant, looking up at the camera

No. 01

Companion-animal research

BPC-157

The gut-and-tissue research peptide, studied for recovery.

What the research shows

The most direct companion-animal evidence is a pharmacokinetic study in beagle dogs, which mapped how the compound moves through the body. The wider literature is rodent: rat tendon and gut-lining models dominate, with consistent signals around the body's normal recovery processes. Controlled outcome trials in dogs and cats do not exist yet. That gap is why we suggest reading the studies with your veterinarian.

$84.99$101.992 sizes

A white horse moving across a dark pasture

No. 02

Companion-animal research

TB-500

The mobility peptide behind the soft-tissue research.

What the research shows

TB-500 is a fragment of thymosin beta-4, studied mostly in laboratory animal models for its role in cell migration and tissue maintenance. Equine interest in the research runs long, but the published work is preclinical and small in scale. Controlled trials in client-owned animals are sparse. Your veterinarian is the right person to weigh what that means.

$84.99$101.992 sizes

No. 03

Companion-animal research

The Recovery Stack

BPC-157 + TB-500, together in one vial — the most-studied pairing.

What the research shows

The pairing appears throughout the literature because the two sequences are studied for complementary pathways: gut lining and tissue maintenance on one side, soft-tissue mobility on the other. Each compound has its own preclinical record, mostly rodent and in-vitro. The blend itself has not been studied as a combination in companion animals. We say that plainly so you can weigh it with your veterinarian.

$129.99$155.99