P3 Labz reviews
P3 Labz reviews: 9 independent lab tests across 2 products, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is P3 Labz legit? Lab record: Limited
How we rate- 9 independent tests
- 5 of 7 lots filled to label
- Median purity 99.9%
- 1 of 2 products graded D or E
Some of P3 Labz's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Tesamorelin
P3 Labz graded E. Shanghai ERP peptide Biotechnology's Tesamorelin graded A across 13 tests.
Buy from Shanghai ERP peptide BiotechnologyAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where P3 Labz 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.
Tesamorelin
P3 Labz: grade EP3 Labz 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 P3 Labz's site.
- TirzepatideBGOOD
- Tests
- 6
- Passed
- 83.3%
- TesamorelinEBAD
- Tests
- 3
- Passed
- 33.3%
What the testing shows
Across 7 measured samples from P3 Labz, 2 came in more than 5% under the quantity on the label (29%). Another 3 measured more than 5% over. Purity across 9 readings ran from 97.05% to 99.9%, median 99.9%. Samples span Oct 2025 to Jan 2026.
- Under label
- 2/7
- Median purity
- 99.9%
- Latest sample
- Jan 2026
more than 5% short
97.05%–99.9% range
first tested Oct 2025
Our read on P3 Labz
6 of P3 Labz's 9 graded samples passed (67%), and 100% of all samples were sent in by buyers rather than by the shop.
When a sample failed, the most common reason was purity under 99.5% (3 times).
Against the 302 shops with at least five graded tests, P3 Labz's pass rate is at or above 34% of them, and it has more tests on record than 27% of them.
When and how P3 Labz was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (8), BTLabs (1)
- Who sent the samples
- buyers 100%
- Batches covered
- 9 distinct batch numbers
Why P3 Labz's failed samples failed
The 3 most recent failed tests, with the lab's reason.
Tesamorelin · Jan 29, 2026
purity under 99.5%; amount in the vial more than 35% off the label
Tesamorelin · Nov 6, 2025
purity under 99.5%; amount in the vial more than 35% off the label
Tirzepatide · Oct 6, 2025
purity under 99.5%
Lab testing results
Independent results across 2 products.
Individual lab tests
Date
1/29/2026
Purity
99.9%
Quantity
30 mg → 29.7 mg
Lab
Krause Analytical
Vial
Silver Label / Black Crimp / Clear Blue Cap
Date
1/29/2026
Purity
99.9%
Quantity
30 mg → 26.6 mg
Lab
Krause Analytical
Vial
Silver Label / Silver Crimp / Pink Cap
Date
1/29/2026
Purity
99.9%
Quantity
30 mg → 31.7 mg
Lab
Krause Analytical
Vial
Silver Label / Black Crimp / Yellow Cap
Date
1/29/2026
Purity
99.9%
Quantity
45 mg → 46.9 mg
Lab
Krause Analytical
Vial
Silver Label / Black Crimp / White Cap
Date
1/29/2026
Purity
99.9%
Quantity
60 mg → 64.1 mg
Lab
Krause Analytical
Vial
Silver Label / Gold Crimp / Clear Red Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| TirzepatideSilver Label / Black Crimp / Clear Blue Cap | 1/29/2026 | 10.0 | 99.9% | 30 mg → 29.7 mg | Krause Analytical | View |
| TirzepatideSilver Label / Silver Crimp / Pink Cap | 1/29/2026 | 10.0 | 99.9% | 30 mg → 26.6 mg | Krause Analytical | View |
| TirzepatideSilver Label / Black Crimp / Yellow Cap | 1/29/2026 | 10.0 | 99.9% | 30 mg → 31.7 mg | Krause Analytical | View |
| TirzepatideSilver Label / Black Crimp / White Cap | 1/29/2026 | 10.0 | 99.9% | 45 mg → 46.9 mg | Krause Analytical | View |
| TirzepatideSilver Label / Gold Crimp / Clear Red Cap | 1/29/2026 | 10.0 | 99.9% | 60 mg → 64.1 mg | Krause Analytical | View |
Which P3 Labz products tested best
Tirzepatide has the strongest record, graded A or B.
Tesamorelin graded D or E: a large share of its samples missed purity or quantity thresholds.
Buying from P3 Labz
If you order from P3 Labz, the A- and B-graded products are the safer picks on this record. For the weaker ones, the better-tested options on this page come from other shops.
We don't track P3 Labz's prices yet. Shipping, payment and refund terms are on their site.
The official store is wa.me/13344755935. 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 P3 Labz
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
P3 Labz: common questions
Is P3 Labz legit?
We rate lab records, not businesses. Limited lab record: 9 independent tests, 5 of 7 lots filled to label, median purity 99.9%, 1 of 2 products graded D or E. Each result links to its original certificate in the table above.
What do P3 Labz reviews say?
We don't hold scored customer reviews for P3 Labz yet. The independent lab results on this page are the evidence we have.
Which P3 Labz peptides tested best?
We have graded 2 P3 Labz products. Tirzepatide graded A or B. Tesamorelin graded D or E.
Is there a P3 Labz coupon code?
We don't have a verified P3 Labz coupon code. A discount changes the price, not what is in the vial.
Ordering from P3 Labz?
Limited lab record: 9 independent tests, 5 of 7 lots filled to label, median purity 99.9%, 1 of 2 products graded D or E.
About P3 Labz
Whatsapp Vendor +1 (334) 475-5935