Peptide Makers reviews
Peptide Makers reviews: 6 independent lab tests across 1 product, with a limited lab record.
Written by Jian Wang, Founder & CEO
Is Peptide Makers legit? Lab record: Limited
How we rate- 6 independent tests
- 5 of 6 lots filled to label
- Median purity 99.9%
- Its tested product graded C or better
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Vendor website
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6 independent COAs · not paid-to-rank · 1 of 6 lots under label
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Boren Health independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Peptide Makers products we've tested
Best-graded first. Grades come from the share of each product's samples that passed purity and quantity checks. Buy links open Peptide Makers' site.
- RetatrutideBGOOD
- Tests
- 6
- Passed
- 83.3%
What the testing shows
Across 6 measured samples from Peptide Makers, 1 came in more than 5% under the quantity on the label (17%). Another 3 measured more than 5% over. Purity across 6 readings ran from 91% to 100%, median 99.9%. Samples span Jun 2026 to Oct 2026.
- Under label
- 1/6
- Median purity
- 99.9%
- Latest sample
- Oct 2026
more than 5% short
91%–100% range
first tested Jun 2026
Lab testing results
Independent results across 1 product.
Individual lab tests
Date
10/6/2026
Purity
100%
Quantity
100 mg → 119.783 mg
Lab
Ichor Life Sciences
Vial
Silver crimp / Yellow cap
Date
9/30/2026
Purity
99.9%
Quantity
20 mg → 19.99 mg
Lab
Harrens Lab
Vial
Silver label / Silver crimp / Clear Pink cap
Date
9/17/2026
Purity
99.9%
Quantity
10 mg → 10.1 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Clear Blue cap
Date
8/6/2026
Purity
99.9%
Quantity
40 mg → 42.6 mg
Lab
BTLabs
Vial
No label / Silver crimp / Clear cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| Retatrutide | 10/12/2026 | 10.0 | 99.99% | 10 mg → 10.98 mg | PharmLabs | View |
| RetatrutideSilver crimp / Yellow cap | 10/6/2026 | 10.0 | 100% | 100 mg → 119.783 mg | Ichor Life Sciences | View |
| RetatrutideSilver label / Silver crimp / Clear Pink cap | 9/30/2026 | 10.0 | 99.9% | 20 mg → 19.99 mg | Harrens Lab | View |
| RetatrutideNo label / Silver crimp / Clear Blue cap | 9/17/2026 | 10.0 | 99.9% | 10 mg → 10.1 mg | Krause Analytical | View |
| RetatrutideNo label / Silver crimp / Clear cap | 8/6/2026 | 10.0 | 99.9% | 40 mg → 42.6 mg | BTLabs | View |
Which Peptide Makers products tested best
Retatrutide has the strongest record, graded A or B.
Buying from Peptide Makers
If you order from Peptide Makers, start with the graded products in the table: each one links straight to the shop.
We don't track Peptide Makers' prices yet. Shipping, payment and refund terms are on their site.
The official store is peptidemakers.com. Check the address before you pay.
What to check before you pay
- The lot number on the vial matches the certificate
- The certificate names the lab and the test date
- Fill versus label, not purity alone
- A refund policy in writing
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Peptide Makers: common questions
Is Peptide Makers legit?
We rate lab records, not businesses. Limited lab record: 6 independent tests, 5 of 6 lots filled to label, median purity 99.9%, its tested product graded C or better. Each result links to its original certificate in the table above.
What do Peptide Makers reviews say?
We don't hold scored customer reviews for Peptide Makers yet. The independent lab results on this page are the evidence we have.
Which Peptide Makers peptides tested best?
We have graded 1 Peptide Makers product. Retatrutide graded A or B.
Is there a Peptide Makers coupon code?
We don't have a verified Peptide Makers coupon code. A discount changes the price, not what is in the vial.
Ordering from Peptide Makers?
Limited lab record: 6 independent tests, 5 of 6 lots filled to label, median purity 99.9%, its tested product graded C or better.
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Peptide Makers customer reviews
No reviews have been submitted yet for Peptide Makers.