Pure Peptide Labs reviews
Pure Peptide Labs reviews: 7 independent lab tests across 2 products, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is Pure Peptide Labs legit? Lab record: Limited
How we rate- 7 independent tests
- 4 of 5 lots filled to label
- Median purity 99.85%
- 2 of 2 products graded D or E
Some of Pure Peptide Labs's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested BPC-157
Pure Peptide Labs graded E. Zenith Jove Peptide ZJ's BPC-157 graded A across 10 tests.
Buy from Zenith Jove Peptide ZJAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where Pure Peptide Labs graded D or E, these shops' samples of the same peptide graded A or B. Ordered by grade, then price per mg. Partner status never changes the order.
BPC-157
Pure Peptide Labs: grade ERetatrutide
Pure Peptide Labs: grade DPure Peptide Labs 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 Pure Peptide Labs' site.
- RetatrutideDPOOR
- Tests
- 3
- Passed
- 66.7%
- BPC-157EBAD
- Tests
- 4
- Passed
- 25.0%
What the testing shows
Across 5 measured samples from Pure Peptide Labs, 1 came in more than 5% under the quantity on the label (20%). Another 2 measured more than 5% over. Purity across 6 readings ran from 99.19% to 99.9%, median 99.85%. Samples span Feb 2026 to Oct 2026.
- Under label
- 1/5
- Median purity
- 99.85%
- Latest sample
- Oct 2026
- Ships from
- United States
more than 5% short
99.19%–99.9% range
first tested Feb 2026
per vendor listing
Our read on Pure Peptide Labs
3 of Pure Peptide Labs' 7 graded samples passed (43%), and 100% of all samples were sent in by buyers rather than by the shop.
Results are improving: 50% passed over the latest six months, up from 33% before.
When a sample failed, the most common reason was amount in the vial more than 35% off the label (2 times).
1 sample failed identity, meaning the lab could not confirm the vial held the labelled peptide.
Against the 302 shops with at least five graded tests, Pure Peptide Labs' pass rate is at or above 11% of them, and it has more tests on record than 17% of them.
When and how Pure Peptide Labs was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (5), BTLabs (2)
- Who sent the samples
- buyers 100%
- Batches covered
- 7 distinct batch numbers
Why Pure Peptide Labs' failed samples failed
The 4 most recent failed tests, with the lab's reason.
BPC-157 · Oct 12, 2026
amount in the vial more than 35% off the label
Retatrutide · Oct 8, 2026
the lab could not confirm it was the labelled peptide
BPC-157 · Mar 4, 2026
purity under 99.5%
BPC-157 · Feb 18, 2026
amount in the vial more than 35% off the label
Lab testing results
Independent results across 2 products.
Individual lab tests
Date
10/12/2026
Purity
99.9%
Quantity
10 mg → 11.1 mg
Lab
Krause Analytical
Vial
White label / Black crimp / Clear cap
Date
10/12/2026
Purity
99.9%
Quantity
20 mg → 7.4 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Blue cap
Date
10/8/2026
Purity
—
Quantity
—
Lab
Krause Analytical
Vial
No label / Silver crimp / Red cap
Date
8/2/2026
Purity
99.8%
Quantity
30 mg → 30.3 mg
Lab
BTLabs
Vial
No label, Silver crimp, Black cap
Date
3/6/2026
Purity
99.9%
Quantity
10 mg → 9.4 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Green Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| BPC-157White label / Black crimp / Clear cap | 10/12/2026 | 10.0 | 99.9% | 10 mg → 11.1 mg | Krause Analytical | View |
| BPC-157No label / Silver crimp / Blue cap | 10/12/2026 | 10.0 | 99.9% | 20 mg → 7.4 mg | Krause Analytical | View |
| RetatrutideNo label / Silver crimp / Red cap | 10/8/2026 | — | — | Krause Analytical | View | |
| RetatrutideNo label, Silver crimp, Black cap | 8/2/2026 | 10.0 | 99.8% | 30 mg → 30.3 mg | BTLabs | View |
| RetatrutideWhite Label / Silver Crimp / Green Cap | 3/6/2026 | 10.0 | 99.9% | 10 mg → 9.4 mg | Krause Analytical | View |
Which Pure Peptide Labs products tested best
Retatrutide and BPC-157 graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from Pure Peptide Labs
We don't track Pure Peptide Labs' prices yet. Shipping, payment and refund terms are on their site.
The official store is purepeptidelabs.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
Track Pure Peptide Labs
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Pure Peptide Labs: common questions
Is Pure Peptide Labs legit?
We rate lab records, not businesses. Limited lab record: 7 independent tests, 4 of 5 lots filled to label, median purity 99.85%, 2 of 2 products graded D or E. Each result links to its original certificate in the table above.
What do Pure Peptide Labs reviews say?
We don't hold scored customer reviews for Pure Peptide Labs yet. The independent lab results on this page are the evidence we have.
Which Pure Peptide Labs peptides tested best?
We have graded 2 Pure Peptide Labs products. Retatrutide and BPC-157 graded D or E.
Is there a Pure Peptide Labs coupon code?
We don't have a verified Pure Peptide Labs coupon code. A discount changes the price, not what is in the vial.
Where does Pure Peptide Labs ship from?
Public listings place Pure Peptide Labs's shipping origin in United States. Check the shop's own shipping page before ordering, as origin can change.
Ordering from Pure Peptide Labs?
Limited lab record: 7 independent tests, 4 of 5 lots filled to label, median purity 99.85%, 2 of 2 products graded D or E.