PX Peptides reviews
PX Peptides reviews: 4 independent lab tests across 2 products, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is PX Peptides legit? Lab record: Limited
How we rate- 4 independent tests
- 2 of 4 lots filled to label
- Median purity 99.9%
- Both products graded C or better
Opens the vendor's site. We don't earn from this link, and no one pays to rank.
Vendor website
Visit PX Peptides
4 independent COAs · not paid-to-rank · 2 of 4 lots under label
Visit PX PeptidesOpens the vendor site. No partner discount on this shop.
Peptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
PX Peptides 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 PX Peptides' site.
- TirzepatideAGREAT
- Tests
- 2
- Passed
- 100.0%
- RetatrutideAGREAT
- Tests
- 2
- Passed
- 100.0%
What the testing shows
Across 4 measured samples from PX Peptides, 2 came in more than 5% under the quantity on the label (50%). Purity across 4 readings ran from 99.9% to 99.9%, median 99.9%. Samples span Sep 2026 to Sep 2026.
- Under label
- 2/4
- Median purity
- 99.9%
- Latest sample
- Sep 2026
more than 5% short
99.9%–99.9% range
first tested Sep 2026
Our read on PX Peptides
4 of PX Peptides' 4 graded samples passed (100%), and 0% of all samples were sent in by buyers rather than by the shop.
Lab testing results
Independent results across 2 products.
Individual lab tests
Date
9/25/2026
Purity
99.9%
Quantity
15 mg → 14.9 mg
Lab
Krause Analytical
Vial
Silver label / Silver crimp / Orange cap
Date
9/25/2026
Purity
99.9%
Quantity
15 mg → 14.3 mg
Lab
Krause Analytical
Vial
Silver label / Silver crimp / Orange cap
Date
9/18/2026
Purity
99.9%
Quantity
15 mg → 13.8 mg
Lab
Krause Analytical
Vial
Silver label / Silver crimp / Pink cap
Date
9/18/2026
Purity
99.9%
Quantity
15 mg → 12.7 mg
Lab
Krause Analytical
Vial
Silver label / Silver crimp / Pink cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| TirzepatideSilver label / Silver crimp / Orange cap | 9/25/2026 | 10.0 | 99.9% | 15 mg → 14.9 mg | Krause Analytical | View |
| TirzepatideSilver label / Silver crimp / Orange cap | 9/25/2026 | 10.0 | 99.9% | 15 mg → 14.3 mg | Krause Analytical | View |
| RetatrutideSilver label / Silver crimp / Pink cap | 9/18/2026 | 10.0 | 99.9% | 15 mg → 13.8 mg | Krause Analytical | View |
| RetatrutideSilver label / Silver crimp / Pink cap | 9/18/2026 | 10.0 | 99.9% | 15 mg → 12.7 mg | Krause Analytical | View |
Which PX Peptides products tested best
Tirzepatide and Retatrutide have the strongest record, graded A or B.
Buying from PX Peptides
If you order from PX Peptides, start with the graded products in the table: each one links straight to the shop.
We don't track PX Peptides' prices yet. Shipping, payment and refund terms are on their site.
The official store is pxpeptides.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 PX Peptides
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
PX Peptides: common questions
Is PX Peptides legit?
We rate lab records, not businesses. Limited lab record: 4 independent tests, 2 of 4 lots filled to label, median purity 99.9%, both products graded C or better. Each result links to its original certificate in the table above.
What do PX Peptides reviews say?
We don't hold scored customer reviews for PX Peptides yet. The independent lab results on this page are the evidence we have.
Which PX Peptides peptides tested best?
We have graded 2 PX Peptides products. Tirzepatide and Retatrutide graded A or B.
Is there a PX Peptides coupon code?
We don't have a verified PX Peptides coupon code. A discount changes the price, not what is in the vial.
Ordering from PX Peptides?
Limited lab record: 4 independent tests, 2 of 4 lots filled to label, median purity 99.9%, both products graded C or better.