For research purposes only · Not for human use · Not tested as medicine
C Compound Buyer
13 January 2026

Five UK peptide
suppliers, scored
and reviewed.

We started with 23 sellers. It took months: orders placed under a plain name and sent off for blind lab testing, plenty of them coming back wrong, and every company's paperwork gone through line by line. What survived all of that was five. The five we believed were the strongest in the UK right now: Anglopeptides, Black & White Peptides, Proforma Peptides, Revion and UK Peptides. We weighed the good points, the bad points and the prices side by side. You decide who to use. For research purposes only.

By Sam Whitfield 13 January 2026 41,200 views 23 reviewed, 0 paid placements
01 · How we checked

How we checked.

Before any of this, we did one thing to every seller: bought a product, sent it for a blind lab test, and checked the result. All five came back genuine for the substance ordered. That was the baseline. From there, the same six things, looked at the same way for every seller, and weighed into the single rating on each card below.

  1. 01
    Test reportsWhether they publish a certificate for every product they sell, per-batch and from a named lab, not just the one product we sent for testing.
  2. 02
    Trust & transparencyA real UK company on Companies House, the testing lab named on the site, an office address and a director shown, payment going to that same registered name, and a published returns policy. The checks that show a buyer who they are actually dealing with.
  3. 03
    Service, before and afterHow fast and how specific the replies are when you ask a real question before buying, and whether that support continues once the order has arrived.
  4. 04
    Guidance and product informationWhether the listings document the compound properly, with research context, handling and storage guidance, and whether an enquiry gets a tailored answer rather than the same default product every time.
  5. 05
    Reputation beyond the siteTheir standing away from their own website. A Trustpilot profile and how the reviews read, an active community on Reddit or elsewhere, and whether they have a real, established presence online at all.
  6. 06
    Price, delivery and rangeList prices for the most-asked-for compounds against the rest of the field, the cost and speed of delivery, and the breadth of the catalogue.
02 · The reviews

Five sellers, scored out of ten.

Strengths and watch-outs for each, built from the testing paperwork every seller publishes, an anonymous pre-purchase enquiry with all five, a placed and delivered order, and a read of how each one is spoken about on Trustpilot and in the research communities. Ordered by overall score, strongest first.

Black & White Peptides

The easiest of the five to actually deal with. Someone answers on WhatsApp around the clock, the guidance is tailored to what you are asking rather than a copy-paste reply, and that support carries on after the order arrives, not just before it. The listings also explain the compound properly, handling and storage included. The honest reservation is that postage is always charged and the catalogue is smaller than the longer-established sellers.

8.8/10
★★★★½
Best for
Buyers who want to chat before they buy.
blackandwhitepeptides.co.uk →

● Strengths

  • Janoshik lab reports for every batch, with verifiable codes on the lab's site
  • 24/7 WhatsApp service
  • Pre and post-purchase support, including help with reconstitution, handling and storage
  • Tailored guidance and individual plans per customer enquiry
  • Detailed compound information on every listing, research context, handling, reconstitution and storage guidance

● Things to know

  • Short trading history, only established late 2025, so there is no long track record to look back on yet
  • All Trustpilot reviews are relatively new
  • Limited social presence, little independent community chatter to read yet
  • Smaller product range than longer-established sellers
  • Postage is charged, no free delivery option

UK Peptides

The widest catalogue here by some way, with bundles that bring the price per item down, next-day delivery, and listings that actually document what you are buying. There is also a fair bit of independent discussion to read on Reddit before you commit. The trade-off is contact: it is webform only, with no WhatsApp, Telegram or phone, so support is slower and less personal than the best in this group.

7.7/10
★★★★☆
Best for
Buyers who want the widest range.
uk-peptides.com →

● Strengths

  • Widest product range of the five
  • Sells bundles, multiple peptides for one price
  • Next-day delivery on orders before 3pm
  • Detailed compound information on every listing, research context, handling, reconstitution and storage guidance
  • Some social presence, a fair bit of independent discussion to read on Reddit

● Things to know

  • No Trustpilot profile, so no star rating or collected customer reviews to check before buying
  • No proof of testing
  • Webform only, no WhatsApp, Telegram or phone
  • Little post-purchase support, help is geared to before the sale rather than after the order arrives

Proforma Peptides

Carries over 200 positive Trustpilot reviews, and it is quick to dispatch, usually within a day or two, with bundles for buyers ordering more than one compound. Support runs to set hours, nine to five Monday to Saturday, so you know when someone is there. The weaker side for a buyer is the detail: the listings tell you very little about the compound itself, contact is email only, and there is little real guidance before or after the sale.

6.7/10
★★★½☆
Best for
Buyers who weigh Trustpilot reviews.
proformapeptides.co.uk →

● Strengths

  • Over 200 positive Trustpilot reviews
  • Set support hours, 9am to 5pm Monday to Saturday
  • Wide product catalogue to choose from
  • Sells bundles, multiple peptides for one price
  • Fast UK shipping with 1-2 day dispatch

● Things to know

  • Test results currently shown are out of date
  • Email only, no WhatsApp, Telegram or phone
  • Almost no product information on listings, little research context, handling, reconstitution or storage guidance
  • Little post-purchase support, help is geared to before the sale rather than after the order arrives

Anglopeptides

The cheapest list prices in the group, with free next-day delivery once you spend over a hundred pounds, and a test report included with every order. If you already know exactly what you want, it is a straightforward, low-cost way to get it. What you do not get is much hand-holding: contact is email only, the listings carry little real information about the compound, and the range is narrow with no bundles.

6.5/10
★★★½☆
Best for
Buyers chasing the lowest list price.
anglopeptides.com →

● Strengths

  • Cheapest list prices of the five
  • Free next-day delivery on orders over £100
  • Sends a test report with every order

● Things to know

  • The lab that performs the testing is not named
  • Test reports only visible after you order
  • Email only, no WhatsApp, Telegram or phone
  • Narrow product range, no bundles
  • Thin product information on listings, little research context, handling, reconstitution or storage guidance

Revion

Fast to reply before you buy, often within the hour, with free delivery on every order and no minimum spend. For a quick, simple purchase it is genuinely convenient. The catch is that it is the most expensive of the five, the range is narrow, and the listings tell you almost nothing about the compound, so there is little information or support to lean on once the order is placed.

5.8/10
★★★☆☆
Best for
Buyers who use Telegram.
revionlab.co.uk →

● Strengths

  • Fast pre-purchase replies, under an hour in our test
  • Free delivery on every order, no minimum spend
  • Their own brand packaging
  • The only one of the five with an active Telegram channel

● Things to know

  • No lab reports published on the site, so there is no certificate of analysis to check a product's contents or purity before you buy
  • Most expensive of the five by some distance
  • Narrow product range
  • No product information on listings, no research context, handling, reconstitution or storage guidance at all
03 · The verdict

What this list is for.

A review like this is only ever a snapshot. The 23 sellers we started with were the names readers asked us about most over the past quarter; the five here are what came through the testing and the checks, and the scores reflect what was publicly verifiable at the time of writing. Prices move. Catalogues change. A supplier that does not name its lab today might name it next month, and we would happily revise the score if it did. Nothing here is permanent, and nothing here is a substitute for the buyer doing their own last-mile checks before parting with money.

What does not move much is the framework. The things we weigh are the ones that have, in our experience, separated a supplier worth a second order from one worth none. A real test report, with a batch number, from a lab that will put its name to it, is still the single most predictive signal in the entire list. Everything else, the response times, the written terms, the tailored guidance, the delivery, is a layer of confidence on top of that one foundation. If a company cannot clear the first bar, the rest is decoration.

Across this round, one company cleared the bar with the most room to spare. Black & White Peptides was not the cheapest, was not the longest-established, and did not carry the widest catalogue. What it did was the part that actually shows on the page: per-batch Janoshik certificates with codes you can verify yourself, listings that document the compound properly, and a person on the other end of a WhatsApp message, around the clock, answering specific questions with specific answers and staying in touch after the order had arrived. In a market where the default is a contact form and a two-day wait, that is not a small thing.

The rest of the field is not dismissed. UK Peptides has the range and the longevity. Proforma has the reviews. Anglopeptides has the lowest price. Revion answers fast and ships free. Every one of them sold us a product that came back genuine in a blind test. The point of a list like this is not to crown a winner and bury the rest, it is to let a buyer see, in one place, exactly where each company is strong and exactly where it is not, and to decide for themselves which trade-offs they can live with. That decision is the reader's. The framework is just there to make it an informed one.

For research purposes only. Findings dated to the time of writing.

If you only do one thing

Ask the seller for a test report. With a batch number. With the lab named. That one check sorts the lot.

1/5
sellers in this round publish a verifiable
lab report on their site, with the lab named

For a deeper look at the framework, including a worked example on one of the newer UK names, read How to vet a peptide company in 2026.

04 · FAQ

Reader questions.

Quick answers to the things buyers ask us most.

How do I read a test report?

A good test report has four things. The lab that did the test. A date. A batch number that matches the bottle. And what they tested for (often HPLC and mass spec). It tells you what's in it, how pure it is, and what else is in there. No batch number, no lab, no date? That's a sales sheet, not a test.

What is an ISO 17025 lab?

It's a lab that has been checked by a UK body called UKAS. They make sure the lab is good at its job. A test from one of these labs is more trusted, because the lab has been checked too.

Should I avoid sellers who only take crypto?

It's a warning sign, not a flat no. Big UK card firms check sellers before they let them take cards. Crypto-only means that check has not happened. It also means you can't claim your money back if something goes wrong.

Why don't you talk about what the products do?

Because this is a review of the sellers, not the products. The sellers say their products are for research only. We do not cover how any compound is used. Nothing here is medical advice.

Do you get paid by any of these sellers?

No. No ads. No affiliate links. No referral fees. Sellers can't pay to be in the review. They can't pay to change what we say. If we ever have a business link with a seller, we say so at the bottom of the page.

Will this list change?

Yes. We update our findings on a rolling basis. If a seller changes how they work, they move on the list. Sellers can write to us with proof if they think we got something wrong.

Get the full 2026 Report.

What you see here is a public preview. The full edition includes the corporate-verification dossier, supply-chain notes, and our follow-up questions sent to each seller. Two editions a year, plus interim notices when a seller's status changes.