Disclosure: Puptides is owned by the team behind Peps for Pups. How that works
Buyer's guide

How to check a dog peptide brand in ten minutes

The four checks we use to score every brand, and how to run them yourself before you spend anything.

By The Puptides Desk. Updated 2026-11-13.

You do not need a chemistry degree. You need ten minutes and a healthy dose of scepticism.

1. Will it actually reach you?

Find the shipping policy. Does it name the UK? Does it say where parcels ship from? "Ships worldwide" in a banner is not a policy.

2. What will it really cost?

Look for the price in pounds. If it is in dollars, add currency fees and possible import charges. "Starting at" prices tell you very little.

3. Can you get your money back?

Look for a written refund policy, not just a badge. Check the time limit, whether opened products count and who pays return postage. In the UK you also have a 14 day right to cancel most online orders from UK sellers.

4. Where is the certificate?

A certificate of analysis should show:

  • a batch number that matches the product
  • a named, independent lab
  • a recent date
  • identity and purity results

A purity figure with no document behind it is marketing.

Bonus checks

  • Is there a company name and address?
  • Does the brand say plainly what the product's legal status is?
  • Can you reach a human by email?

See how the brands compare

We run these same checks on every brand in our comparison.

Read next

Puptides is published by the team behind Peps for Pups, one of the brands reviewed here. We score every brand, including our own, on the same four published checks and we link our sources so you can verify them.