Polaris Peptides Reviews
Polaris Peptides review: 107 independent lab tests across 9 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is Polaris Peptides legit? Lab record: Mixed
How we rate- 107 independent tests
- 89 of 99 lots filled to label
- Median purity 99.77%
- 5 of 9 products graded D or E
Some of Polaris Peptides's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested CJC-1295
Polaris Peptides graded E. Rhome Research's CJC-1295 graded A across 2 tests.
Buy from Rhome ResearchAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where Polaris Peptides 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.
Polaris 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 Polaris Peptides' site.
- MazdutideAGREAT
- Tests
- 3
- Passed
- 100.0%
- TirzepatideBGOOD
- Tests
- 16
- Passed
- 87.5%
- RetatrutideCOKAY
- Tests
- 29
- Passed
- 77.8%
- SemaglutideCOKAY
- Tests
- 19
- Passed
- 72.2%
- PT-141DPOOR
- Tests
- 8
- Passed
- 66.7%
- SurvodutideDPOOR
- Tests
- 6
- Passed
- 60.0%
- BPC-157EBAD
- Tests
- 17
- Passed
- 25.0%
- GHK-CuEBAD
- Tests
- 5
- Passed
- 50.0%
- CJC-1295EBAD
- Tests
- 4
- Passed
- 50.0%
What the testing shows
Across 99 measured samples from Polaris Peptides, 10 came in more than 5% under the quantity on the label (10%). Another 74 measured more than 5% over. Purity across 99 readings ran from 94.41% to 99.99%, median 99.77%. Samples span Dec 2024 to Sep 2026.
- Under label
- 10/99
- Median purity
- 99.77%
- Latest sample
- Sep 2026
- Ships from
- United States
more than 5% short
94.41%–99.99% range
first tested Dec 2024
per vendor listing
Our read on Polaris Peptides
66 of Polaris Peptides' 99 graded samples passed (67%), and 9% of all samples were sent in by buyers rather than by the shop.
Results are slipping: 30% passed over the latest six months, down from 71% before.
When a sample failed, the most common reason was purity under 99.5% (28 times).
Against the 302 shops with at least five graded tests, Polaris Peptides' pass rate is at or above 34% of them, and it has more tests on record than 92% of them.
When and how Polaris Peptides was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Chromate (48), Krause Analytical (24), TrustPointe (14), MZ Biolabs (8)
- Who sent the samples
- buyers 9%, testing programme 91%
- Batches covered
- 26 distinct batch numbers; 9 checked for endotoxins
Why Polaris Peptides' failed samples failed
The 6 most recent failed tests, with the lab's reason.
BPC-157 · Sep 16, 2026
purity under 99.5%
Tirzepatide · Sep 16, 2026
purity under 99.5%; amount in the vial more than 35% off the label
BPC-157 · Sep 15, 2026
purity under 99.5%
BPC-157 · Aug 9, 2026
purity under 99.5%
Semaglutide · Aug 9, 2026
amount in the vial more than 35% off the label
Semaglutide · Aug 9, 2026
amount in the vial more than 35% off the label
Lab testing results
Independent results across 9 products.
Individual lab tests
Date
9/16/2026
Purity
99.48%
Quantity
5 mg → 7.07946 mg
Lab
Ichor Life Sciences
Vial
Black label / Silver crimp / Clear Blue cap
Date
9/16/2026
Purity
94.41%
Quantity
5 mg → 5.98524 mg
Lab
Ichor Life Sciences
Vial
Black label / Silver crimp / Red cap
Date
9/15/2026
Purity
94.9%
Quantity
10 mg → 9.49 mg
Lab
Harrens Lab
Vial
Black label, Silver crimp, Clear Yellow cap
Date
9/15/2026
Purity
99.9%
Quantity
50 mg → 54.2 mg
Lab
Krause Analytical
Vial
Black label / Silver crimp / Blue cap
Date
8/9/2026
Purity
99.7%
Quantity
10 mg → 10.9 mg
Lab
BTLabs
Vial
Black label, Silver crimp, Clear Yellow cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| TirzepatideBlack label / Silver crimp / Clear Blue cap | 9/16/2026 | 9.9 | 99.48% | 5 mg → 7.07946 mg | Ichor Life Sciences | View |
| BPC-157Black label / Silver crimp / Red cap | 9/16/2026 | 9.4 | 94.41% | 5 mg → 5.98524 mg | Ichor Life Sciences | View |
| BPC-157Black label, Silver crimp, Clear Yellow cap | 9/15/2026 | 9.5 | 94.9% | 10 mg → 9.49 mg | Harrens Lab | View |
| GHK-CuBlack label / Silver crimp / Blue cap | 9/15/2026 | 10.0 | 99.9% | 50 mg → 54.2 mg | Krause Analytical | View |
| BPC-157Black label, Silver crimp, Clear Yellow cap | 8/9/2026 | 10.0 | 99.7% | 10 mg → 10.9 mg | BTLabs | View |
Which Polaris Peptides products tested best
Mazdutide and Tirzepatide have the strongest record, graded A or B.
Retatrutide and Semaglutide graded C.
PT-141, Survodutide, CJC-1295, GHK-Cu and BPC-157 graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from Polaris Peptides
If you order from Polaris Peptides, 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 Polaris Peptides' prices yet. Shipping, payment and refund terms are on their site.
The official store is PolarisPeptides.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 Polaris Peptides
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Polaris Peptides: common questions
Is Polaris Peptides legit?
We rate lab records, not businesses. Mixed lab record: 107 independent tests, 89 of 99 lots filled to label, median purity 99.77%, 5 of 9 products graded D or E. Each result links to its original certificate in the table above.
What do Polaris Peptides reviews say?
We don't hold scored customer reviews for Polaris Peptides yet. The independent lab results on this page are the evidence we have.
Which Polaris Peptides peptides tested best?
We have graded 9 Polaris Peptides products. Mazdutide and Tirzepatide graded A or B. PT-141, Survodutide, CJC-1295, GHK-Cu and BPC-157 graded D or E.
Is there a Polaris Peptides coupon code?
We don't have a verified Polaris Peptides coupon code. A discount changes the price, not what is in the vial.
Where does Polaris Peptides ship from?
Public listings place Polaris Peptides's shipping origin in United States. Check the shop's own shipping page before ordering, as origin can change.
Ordering from Polaris Peptides?
Mixed lab record: 107 independent tests, 89 of 99 lots filled to label, median purity 99.77%, 5 of 9 products graded D or E.