Prime Peptides Reviews
Prime Peptides review: 19 independent lab tests across 4 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is Prime Peptides legit? Lab record: Mixed
How we rate- 19 independent tests
- 11 of 11 lots filled to label
- Median purity 99.72%
- 2 of 3 products graded D or E
Some of Prime Peptides's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested CJC-1295
Prime 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 Prime 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.
CJC-1295
Prime Peptides: grade EBPC-157
Prime Peptides: grade EPrime 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 Prime Peptides' site.
- IpamorelinAGREAT
- Tests
- 5
- Passed
- 100.0%
- BPC-157EBAD
- Tests
- 6
- Passed
- 16.7%
- CJC-1295EBAD
- Tests
- 3
- Passed
- 33.3%
- GHK-Cu—
- Tests
- 5
- Passed
- —
What the testing shows
Across 11 measured samples from Prime Peptides, 0 came in more than 5% under the quantity on the label (0%). Another 8 measured more than 5% over. Purity across 17 readings ran from 82.39% to 99.96%, median 99.72%. Samples span May 2025 to Jul 2025.
- Under label
- 0/11
- Median purity
- 99.72%
- Latest sample
- Jul 2025
- Ships from
- United States
more than 5% short
82.39%–99.96% range
first tested May 2025
per vendor listing
Our read on Prime Peptides
7 of Prime Peptides' 19 graded samples passed (37%), and 11% of all samples were sent in by buyers rather than by the shop.
When a sample failed, the most common reason was amount in the vial more than 35% off the label (8 times).
2 samples failed identity, meaning the lab could not confirm the vial held the labelled peptide.
Against the 302 shops with at least five graded tests, Prime Peptides' pass rate is at or above 7% of them, and it has more tests on record than 49% of them.
When and how Prime Peptides was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Janoshik (8), Krause Analytical (7), Freedom Diagnostics (3), Chromate (1)
- Who sent the samples
- buyers 11%, testing programme 89%
- Batches covered
- 6 distinct batch numbers
Why Prime Peptides' failed samples failed
The 6 most recent failed tests, with the lab's reason.
GHK-Cu · Jul 10, 2025
amount in the vial more than 35% off the label
GHK-Cu · Jul 10, 2025
amount in the vial more than 35% off the label
BPC-157 · Jul 10, 2025
purity under 99.5%
GHK-Cu · Jun 14, 2025
amount in the vial more than 35% off the label
BPC-157 · Jun 13, 2025
purity under 99.5%
CJC-1295 No DAC · May 20, 2025
the lab could not confirm it was the labelled peptide
Lab testing results
Independent results across 4 products.
Individual lab tests
Date
7/10/2025
Purity
82.392%
Quantity
10 mg → 12.53 mg
Lab
Chromate
Vial
Black Label / Silver Crimp / Yellow Cap
Date
7/10/2025
Purity
99.83%
Quantity
50 mg → 84.2 mg
Lab
Krause Analytical
Vial
Black Label / Silver Crimp / Violet Cap
Date
7/10/2025
Purity
99.83%
Quantity
50 mg → 83.6 mg
Lab
Krause Analytical
Vial
Black Label / Silver Crimp / Violet Cap
Date
7/3/2025
Purity
99.95%
Quantity
10 mg → 9.83 mg
Lab
Krause Analytical
Vial
Black Label / Silver Crimp / Green Cap
Date
6/14/2025
Purity
99.87%
Quantity
50 mg → 101.54 mg
Lab
Freedom Diagnostics
Vial
Black Label / Silver Crimp / Violet Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| BPC-157Black Label / Silver Crimp / Yellow Cap | 7/10/2025 | 8.2 | 82.392% | 10 mg → 12.53 mg | Chromate | View |
| GHK-CuBlack Label / Silver Crimp / Violet Cap | 7/10/2025 | 10.0 | 99.83% | 50 mg → 84.2 mg | Krause Analytical | View |
| GHK-CuBlack Label / Silver Crimp / Violet Cap | 7/10/2025 | 10.0 | 99.83% | 50 mg → 83.6 mg | Krause Analytical | View |
| CJC-1295Black Label / Silver Crimp / Green Cap | 7/3/2025 | 10.0 | 99.95% | 10 mg → 9.83 mg | Krause Analytical | View |
| GHK-CuBlack Label / Silver Crimp / Violet Cap | 6/14/2025 | 10.0 | 99.87% | 50 mg → 101.54 mg | Freedom Diagnostics | View |
Which Prime Peptides products tested best
Ipamorelin has the strongest record, graded A or B.
CJC-1295 and BPC-157 graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from Prime Peptides
If you order from Prime 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 Prime Peptides' prices yet. Shipping, payment and refund terms are on their site.
The official store is primepeptides.co. 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 Prime Peptides
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Prime Peptides: common questions
Is Prime Peptides legit?
We rate lab records, not businesses. Mixed lab record: 19 independent tests, 11 of 11 lots filled to label, median purity 99.72%, 2 of 3 products graded D or E. Each result links to its original certificate in the table above.
What do Prime Peptides reviews say?
We don't hold scored customer reviews for Prime Peptides yet. The independent lab results on this page are the evidence we have.
Which Prime Peptides peptides tested best?
We have graded 3 Prime Peptides products. Ipamorelin graded A or B. CJC-1295 and BPC-157 graded D or E.
Is there a Prime Peptides coupon code?
We don't have a verified Prime Peptides coupon code. A discount changes the price, not what is in the vial.
Where does Prime Peptides ship from?
Public listings place Prime Peptides's shipping origin in United States. Check the shop's own shipping page before ordering, as origin can change.
Ordering from Prime Peptides?
Mixed lab record: 19 independent tests, 11 of 11 lots filled to label, median purity 99.72%, 2 of 3 products graded D or E.
About Prime Peptides
Prime Peptides is a peptide vendor.
Contact
- 735 State St Ste 524 , Santa Barbara , 93101, United States
- (805) 225-3085
- support@primepeptides.co
- primepeptides.co