Test Your Peptide For Free

Send us your peptide sample and get an independent HPLC laboratory test — verifying identity, purity, and quantity. Free base test. Transparent results. Optional paid add-ons available.

Independent third-party testing
HPLC + LC-MS analysis
Results in 5-7 business days
100% private and confidential

We never share your email. 100% confidential.

Email verification

We sent a verification link to your email. Click it to activate your free test request.

Email:

Check your email for a verification link. Once verified, you'll continue to select your peptide and shipping details.

Didn't receive an email? Resend verification link

Which peptide did you buy?

Select the peptide you want tested. If yours is not listed, choose "Other".

Where did you buy it?

Tell us which vendor you purchased from. This helps us track vendor quality. If you prefer not to share, you can make your test private in the next step.

Choose your testing options

The base test (identity, purity, fill weight) is free. You can add optional paid tests below for deeper analysis.

Base Test — Identity, Purity & Fill Weight HPLC + LC-MS analysis. Verifies peptide identity, purity percentage, and fill weight. Lab: Partner lab.
FREE
Base test (identity, purity, fill) FREE
Total due now: $0

Paid add-ons are processed after we receive your sample. You will receive a payment link by email if you select any paid options. The free base test is always included at no cost.

Purchase details

Tell us about your purchase. This helps us track pricing and vendor quality across the market.

Upload a photo or PDF of the vendor's COA if you have one. Optional but helps us verify.

Screenshot or photo of your order confirmation. Optional but strengthens the test record.

Where do we send the label?

Enter your shipping address. We'll send you a prepaid shipping label and your test results.

Review and submit

Please review your information before submitting.

How it works

1

Submit your request

Fill out the form above with your peptide, vendor, and shipping details.

2

Get prepaid label

We email you a prepaid shipping label within 24 hours. Mail us your sample.

3

Lab analysis

Our partner lab runs HPLC + LC-MS analysis on your sample. Identity, purity, fill weight.

4

Get your results

Full test report emailed to you in 5-7 business days. Pure, underdosed, or fake — you'll know.

Frequently asked questions

Is this really free?

Yes. PepsReview offers free sample testing as part of our mission to bring transparency to the peptide market. The base test (identity, purity, fill weight) is always free. We cover the lab testing and shipping costs. Optional paid add-ons are available if you want additional testing.

What do you test for?

The free base test covers three things: Identity (is it the peptide you ordered?), Purity (what percentage is pure?), and Fill weight (does the vial contain the stated amount?). We use HPLC and LC-MS methods. Paid add-ons include endotoxins ($110), heavy metals ($120), residual solvents ($175), private testing ($120), and premium lab choice ($89).

What are the paid add-on tests?

Endotoxins ($110) — tests for bacterial endotoxin contamination. Heavy Metals ($120) — tests for arsenic, lead, cadmium, mercury. Residual Solvents ($175) — tests for solvent contamination from manufacturing. Private Testing ($120) — your results are not published, sample tested blind. Lab Choice ($89) — premium partner lab with fill weight analysis. All add-ons use the same sample — no additional sample needed.

How much sample do you need?

We need a small amount — typically 1-2mg of reconstituted peptide, or a small portion of your lyophilized vial. You keep the rest.

Will my results be public?

By default, your results are sent privately to your email. We do not publish individual test results or associate them with your name. Aggregated, anonymized data may be used for vendor quality scoring on PepsReview. If you want complete privacy, select the "Private Testing" add-on ($120) and your results will not be published at all.

Which countries do you ship to?

Currently we ship prepaid labels to US, UK, Canada, Australia, and most EU countries. If your country is not listed, select "Other" and we'll try to accommodate.

What happens to my email?

Your email is used to send you the shipping label and test results. We may also send you peptide research updates and vendor alerts — you can unsubscribe at any time. We never share your email with third parties.

How do paid add-ons work?

Select any paid add-ons in step 4 of the form. After we receive your sample, we'll send you a payment link by email. Once payment is confirmed, the additional tests will be performed on the same sample. You only pay for what you select — the base test is always free.