Peptide Comparison Sites: 26 Price and Vendor Rating Sites Compared (2026)

How does Peptide Scanner compare with each site?

Each site below does something well. For each one, we show where Peptide Scanner is different and where that site leads. Every line comes from the site's own pages, as of 1 November 2026.

One gap applies to all of them: we have not yet published our own lab tests. Peptide Scanner has lab-tested 0 suppliers so far, and Finnrick has more test data today.

• Peptide Scanner vs Finnrick

  Where Peptide Scanner is different: Price indexes for the UK, US, EU and Australia. Finnrick serves the US market. Our free test is for UK senders. Finnrick's free test takes US samples.

  Where they lead: 12,729 published lab tests on 499 vendors, and 2,010 vendors listed.

  finnrick.com, as of 1 Nov 2026

• Peptide Scanner vs PeptideComp

  Where Peptide Scanner is different: No affiliate links. 399 suppliers vs 102.

  Where they lead: 101 peptides and 7,295 price listings.

  peptidecomp.com, as of 1 Nov 2026

• Peptide Scanner vs Peptideals

  Where Peptide Scanner is different: 399 suppliers vs 30+ to 60+. Prices for the UK, EU and Australia too; Peptideals lists US vendors only.

  Where they lead: Coupon codes for US buyers.

  peptideals.com, as of 1 Nov 2026

• Peptide Scanner vs PepGrades

  Where Peptide Scanner is different: 399 suppliers vs 79. No affiliate links.

  Where they lead: 157 compounds, and trust grades for 61 vendors.

  pepgrades.com, as of 1 Nov 2026

• Peptide Scanner vs Prof. Peptide

  Where Peptide Scanner is different: 399 suppliers vs 100 to 130. Prices are shown without an affiliate code.

  Where they lead: A completed certificate check on 103 vendors.

  profpeptide.com, as of 1 Nov 2026

• Peptide Scanner vs PeptideBasis

  Where Peptide Scanner is different: No affiliate links and no sponsored placements.

  Where they lead: Up to 131 vendors in stock for one compound (BPC-157).

  peptidebasis.com, as of 1 Nov 2026

• Peptide Scanner vs PeptideSaver

  Where Peptide Scanner is different: A published supplier count (399). PeptideSaver does not state a vendor total.

  Where they lead: The owner says they vet every company on the site by hand.

  peptidesaver.net, as of 1 Nov 2026

• Peptide Scanner vs PepsTracker

  Where Peptide Scanner is different: 399 suppliers vs 27. No affiliate links and no paid placement.

  Where they lead: 86 peptides, with every discount code applied to the price.

  pepstracker.com, as of 1 Nov 2026

• Peptide Scanner vs Peptidemap

  Where Peptide Scanner is different: 399 suppliers vs 67. 5,684 listings in 4 regional indexes vs 5,303. No supplier pays to appear.

  Where they lead: Coupon codes shown next to vendors.

  peptidemap.com, as of 1 Nov 2026

• Peptide Scanner vs PeptidePrices

  Where Peptide Scanner is different: 399 suppliers vs 303. No affiliate links. Separate price indexes for the UK, US, EU and Australia.

  Where they lead: 101 compounds and 8,150 in-stock listings.

  peptideprices.net, as of 1 Nov 2026

• Peptide Scanner vs PeptideScouter

  Where Peptide Scanner is different: 399 suppliers vs 47. No affiliate links.

  Where they lead: Daily price history since 27 April 2026.

  peptidescouter.com, as of 1 Nov 2026

• Peptide Scanner vs PeptideBase

  Where Peptide Scanner is different: 399 suppliers vs 83 vendors with prices. UK, EU and Australia prices; PeptideBase covers the US and Canada. A private $99 test you can order.

  Where they lead: 2,700+ providers, including clinics, and 1,554 certificates checked. Neither site uses affiliate links.

  peptidebase.io, as of 1 Nov 2026

• Peptide Scanner vs Peptide Local

  Where Peptide Scanner is different: 399 suppliers and 5,684 price listings vs 84 sourced listings. No commission.

  Where they lead: Local legal status (1,722 country checks) and clinical trial information (268 studies).

  peptidelocal.com, as of 1 Nov 2026

• Peptide Scanner vs Peptifact

  Where Peptide Scanner is different: No affiliate links. Daily price comparison across 399 suppliers.

  Where they lead: Two anonymous orders per vendor, tested by an independent lab.

  peptifact.com, as of 1 Nov 2026

• Peptide Scanner vs vialaudit

  Where Peptide Scanner is different: No affiliate links. You can order a lab test from us ($99, private).

  Where they lead: A COA checker built on 2,238 mirrored lab certificates.

  vialaudit.com, as of 1 Nov 2026

• Peptide Scanner vs PeptideBenchmark

  Where Peptide Scanner is different: 399 suppliers vs 134. No paid slots; PeptideBenchmark sells a sponsor slot at $1,000 per 30 days.

  Where they lead: Certificates confirmed with the lab that issued them.

  peptidebenchmark.com, as of 1 Nov 2026

• Peptide Scanner vs ChemVerify

  Where Peptide Scanner is different: No commission on links or codes, and no supplier pays to rank. ChemVerify earns commission on links and sells vendors a €1,000 test per peptide.

  Where they lead: It buys samples itself and tests them at Janoshik.

  chemverify.com, as of 1 Nov 2026

• Peptide Scanner vs The Peptide Watch

  Where Peptide Scanner is different: Price comparison, and the US, EU and Australia as well as the UK.

  Where they lead: 549 active UK vendors, re-checked daily. Neither site takes vendor money.

  thepeptidewatch.com, as of 1 Nov 2026

• Peptide Scanner vs Peptide Price Checker

  Where Peptide Scanner is different: 399 suppliers vs 273. Price indexes in 4 regions. A private test you can order.

  Where they lead: 87 peptides tracked. Neither site takes commissions.

  peptidepricechecker.com, as of 1 Nov 2026

• Peptide Scanner vs Crestigen

  Where Peptide Scanner is different: A full directory of 399 suppliers. No commission.

  Where they lead: Price data sits next to research content.

  crestigen.com, as of 1 Nov 2026

• Peptide Scanner vs PeptideScores

  Where Peptide Scanner is different: 399 suppliers vs 92. No affiliate links.

  Where they lead: 1,521 COAs reviewed.

  peptidescores.com, as of 1 Nov 2026

• Peptide Scanner vs Compound Review

  Where Peptide Scanner is different: 399 suppliers vs 93. No commissions. Compound Review earns commissions from some vendors it covers and names Purgo Labs as its primary partner.

  Where they lead: Every vendor score and price is dated.

  compoundreview.com, as of 1 Nov 2026

• Peptide Scanner vs Pro Peptide Price

  Where Peptide Scanner is different: No affiliate links. Price indexes in 4 regions, updated daily.

  Where they lead: 102 compounds tracked.

  propeptideprice.com, as of 1 Nov 2026

• Peptide Scanner vs PeptiPrices

  Where Peptide Scanner is different: No referral codes on links. Our links go to the plain retailer page.

  Where they lead: No listing without a recent third-party lab result.

  peptiprices.com, as of 1 Nov 2026

• Peptide Scanner vs YourPeptideHub

  Where Peptide Scanner is different: 399 suppliers vs 11.

  Where they lead: 619 products, with filters for purity and third-party testing.

  yourpeptidehub.com, as of 1 Nov 2026

What is the best website to compare peptide prices?

No single peptide price comparison site covers every vendor. Vendor counts vary a lot. As of 1 November 2026, for example: Peptide Scanner 399 suppliers, PeptidePrices 303, Peptide Price Checker 273, PeptideBenchmark 134 and PeptideComp 102.

Most sites show cost per mg, so a 5mg vial and a 10mg vial can be compared. Some sites apply their own discount code before they sort prices. PepsTracker, Prof. Peptide and Pro Peptide Price say this on their pages. That makes the shown price lower, but only if you use that code.

The right site depends on where you buy:

• US buyers: PeptideComp, PepsTracker, Peptideals (US vendors only), PeptideScouter and PeptidePrices all price in US dollars.
• UK buyers: Peptide Scanner has a UK price index in pounds. On 29 October 2026 it showed a median retatrutide price of £4.41 per mg across 23 UK suppliers. ChemVerify also has a UK market view in pounds.
• EU buyers: Peptide Scanner has an EU index in euros (34 peptides). ChemVerify and Peptide Local have EU views.
• Australian buyers: Peptide Scanner has an Australia index (26 peptides). Peptide Local also has an Australia view.

Which sites rate peptide vendors with lab tests?

Three rating sites say they buy vials and send them to a lab themselves, as of 1 November 2026: Finnrick, ChemVerify and Peptifact. Most other rating sites score vendors on the lab reports (COAs) that vendors publish.

• Finnrick tests samples from the public and from its own purchases. It has published 12,729 tests.
• ChemVerify buys samples and tests them at Janoshik. Vendors can also pay €1,000 per peptide for a test for its "ChemVerified" seal. ChemVerify discloses both on its about page.
• Peptifact places "two anonymous orders per vendor" and sends one vial to an independent lab.

These sites check vendor COAs instead of testing: PepGrades, Prof. Peptide, PeptideBase, vialaudit, PeptideBenchmark, PeptideScores, Compound Review, PeptidePrices and The Peptide Watch. A checked COA tells you a lab tested one batch. It does not tell you which batch the vendor ships to you. PepGrades says this clearly on its method page.

Is Finnrick reliable?

Finnrick (finnrick.com) is a US peptide testing platform that has published 12,729 lab tests across 499 vendors, as of 29 October 2026. It sends samples to third-party labs and rates each vendor and peptide pair by the share of samples that pass its standard.

How Finnrick ratings work, as its own site describes them:

• Samples come from public submissions and Finnrick's own purchases. Vendor samples are labeled. Vendor COAs "do not drive the rankings".
• The public "Finnrick Standard" needs purity of at least 99.5% and a fill within 25% of the label.
• Three stricter modes are for paying members ($9.99 or $39.99 a month). Only one mode grades endotoxins.
• Finnrick says it does not take payment to change ratings or delete results.
• Vendors can register free. An optional vendor premium service costs $279 a month. Vendors can also pay for private tests, or for "Launch with Finnrick" tests that are published on the site.
• Finnrick calls its ratings "informational summaries of test evidence, not endorsements".

Limits to know: Finnrick serves the US market. Its free test is for US samples only. Finnrick says 2 results are enough for a "tentative" rating, so check how many tests sit behind a score. For lab testing outside Finnrick, see our Finnrick alternative guide.

Where can I find peptide vendor reviews and COA databases?

As of 1 November 2026, vialaudit says it mirrors 2,238 lab certificates and PeptideBase says it holds 1,554. PeptidePrices matches COAs to single listings, and Finnrick links the lab COA behind each of its own tests.

• PeptidePrices links a COA to a listing only when vendor, peptide and strength match.
• PeptideBase shows whether each certificate could be matched against the lab's own records.
• vialaudit checks certificates against Kovera and Janoshik records.
• Peptide Scanner keeps a COA archive. It stores the original PDF and its source. These are supplier documents, not Peptide Scanner tests.
• Peptide vendor reviews from buyers appear on PeptidePrices, PeptideSaver, PeptiPrices and Peptide Scanner. Peptide Scanner also shows an adjusted score from outside reviews.

How do I check a peptide supplier is legit in the UK?

The Peptide Watch (thepeptidewatch.com) checks UK peptide sellers for their own verifiable Janoshik certificate. Of 549 active UK vendors it audited as of 31 October 2026, 39 passed.

Other UK checks:

1. Companies House.

   Check the company name, number and directors on the seller's site.

2. The COA.

   The lab should name the seller as the client. A Janoshik report has a code you can check on janoshik.com.

3. UK prices.

   Compare the price per mg with the Peptide Scanner UK price index. A price far below the median is a reason to look closer. UK price index.

4. Test a vial.

   Peptide Scanner offers free HPLC purity tests for UK senders at a UK university lab, and publishes the result. The first batch is 50 tests, then a waitlist. Free UK testing.

Which comparison sites use affiliate links?

Most peptide comparison sites earn money from affiliate links or discount codes. As of 1 November 2026, four of the 26 say they take no commission from vendors: Peptide Scanner, PeptideBase, The Peptide Watch and Peptide Price Checker.

• Say they use affiliate links or codes: PeptideComp, PepGrades, Prof. Peptide, PeptideBasis, PepsTracker, PeptidePrices, PeptideScouter, Peptide Local, Peptifact, vialaudit, ChemVerify, Crestigen, PeptideScores, Compound Review, Pro Peptide Price.
• Sell paid placement: PeptideBenchmark sells a labeled sponsor slot at "$1,000 per 30 days". PeptideBasis labels sponsored listings.
• Show codes, affiliate status not stated: Peptideals, Peptidemap, PeptiPrices, YourPeptideHub, PeptideSaver.
• Other income: Finnrick sells memberships and paid tests, and offers paid services to vendors. It says it never takes payment to change ratings.

Affiliate links are not a problem in themselves. Most of these sites say commissions do not change their order or scores. What matters is that the site tells you, and that prices are sorted by price.

Is there a peptide price tracker with price history?

Yes. PeptideScouter has saved prices daily since 27 April 2026. PeptidePrices, PeptideComp and Pro Peptide Price also show price history. Peptide Scanner publishes a daily price index for the UK, US, EU and Australia, with a CSV download.

How do I use a peptide comparison site?

1. Check the date of the price.

   Good sites show when each price was checked. A price from last month may be gone.

2. Compare cost per mg.

   Use the same vial size where you can.

3. Check if a code was applied.

   The shown price may need the site's code.

4. Match the COA batch.

   The batch number on the COA should match your vial.

5. Ask who paid for the test.

   A vendor-paid test, a community test and a site-bought test are not the same evidence.

6. Read the affiliate disclosure.

   Look for a disclosure page and whether sponsored slots are labeled.

Where does Peptide Scanner fit?

Peptide Scanner (peptidescanner.co) is an independent UK-based price comparison site that tracks 399 research peptide suppliers across the UK, US, EU and Australia, takes no affiliate commission, and offers a private $99 lab test. It is run by Spanify Limited (England and Wales, no. 16788776).

What Peptide Scanner does, as of 1 November 2026:

• Tracks 399 suppliers in the UK, US, Germany and other countries, with 9,329 price checks.
• Publishes a daily price index per mg in 4 regions: 43 peptides in the UK (2,508 listings), 43 in the US (2,651), 34 in the EU (372) and 26 in Australia (153).
• Keeps an archive of supplier COAs, with the original PDF.
• Sells a private $99 test at Krause Analytical in Austin, TX: identity by mass spec, purity by HPLC, and the amount in the vial.
• Offers a free HPLC purity test for UK senders, and publishes the result. The first batch is 50 tests, then a waitlist.
• Takes no affiliate commission. Its pages say no supplier pays to rank.

What Peptide Scanner does not do yet: it has lab-tested 0 suppliers itself. So no supplier on the site has a full trust score yet. If you need ratings built on lab tests today, Finnrick has published 12,729 tests.

Peptide comparison sites: FAQ

• Compare prices per mg in the UK, US, EU and Australia.

  Open the price index

• See all 399 suppliers we track.

  Browse suppliers

• Test a vial for $99. Identity, purity and amount, private report.

  Order a $99 test

Sources: each site's own pages, checked 1 November 2026. If a number has changed, tell us at info@peptidescanner.co and we will update it.