Is Precision Peptide Co Legit
Is Precision Peptide Co a legit peptide vendor? 21 independent lab tests across 5 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Lab record: Mixed
How we rate- 21 independent tests
- 19 of 20 lots filled to label
- Median purity 99.74%
- 2 of 5 products graded D or E
Some of Precision Peptide Co's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Semaglutide
Precision Peptide Co graded E. Pura Peptides's Semaglutide graded A across 1 test, $5.00 / mg.
Buy from Pura PeptidesAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where Precision Peptide Co 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.
Semaglutide
Precision Peptide Co: grade EBPC-157
Precision Peptide Co: grade DPrecision Peptide Co 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 Precision Peptide Co's site.
- GHK-CuAGREAT
- Tests
- 4
- Passed
- 100.0%
- IpamorelinAGREAT
- Tests
- 4
- Passed
- 100.0%
- Melanotan IICOKAY
- Tests
- 4
- Passed
- 75.0%
- BPC-157DPOOR
- Tests
- 5
- Passed
- 60.0%
- SemaglutideEBAD
- Tests
- 4
- Passed
- 25.0%
What the testing shows
Across 20 measured samples from Precision Peptide Co, 1 came in more than 5% under the quantity on the label (5%). Another 10 measured more than 5% over. Purity across 21 readings ran from 97.21% to 100%, median 99.74%. Samples span May 2025 to Oct 2025.
- Under label
- 1/20
- Median purity
- 99.74%
- Latest sample
- Oct 2025
more than 5% short
97.21%–100% range
first tested May 2025
Our read on Precision Peptide Co
15 of Precision Peptide Co's 21 graded samples passed (71%), and 5% 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% (5 times).
Against the 302 shops with at least five graded tests, Precision Peptide Co's pass rate is at or above 48% of them, and it has more tests on record than 54% of them.
When and how Precision Peptide Co was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (17), Chromate (4)
- Who sent the samples
- buyers 5%, testing programme 95%
- Batches covered
- 6 distinct batch numbers
Why Precision Peptide Co's failed samples failed
The 6 most recent failed tests, with the lab's reason.
BPC-157 Lot: BPC10-08 Exp Date : 07/2026 · Oct 23, 2025
purity under 99.5%
Semaglutide · May 16, 2025
amount in the vial more than 35% off the label
Melanotan II · May 8, 2025
purity under 99.5%
Semaglutide · May 7, 2025
purity under 99.5%
Semaglutide · May 7, 2025
purity under 99.5%
BPC-157 · May 6, 2025
purity under 99.5%
Lab testing results
Independent results across 5 products.
Individual lab tests
Date
10/23/2025
Purity
97.21%
Quantity
10 mg → 12.1 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / White Cap
Date
7/10/2025
Purity
99.95%
Quantity
50 mg → 56.7 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Blue Cap
Date
7/10/2025
Purity
99.9%
Quantity
50 mg → 54.4 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Blue Cap
Date
5/16/2025
Purity
100%
Quantity
5 mg → 32.9 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Clear Cap
Date
5/16/2025
Purity
99.91%
Quantity
5 mg → 5.68 mg
Lab
Krause Analytical
Vial
White Label / Silver Crimp / Clear Cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| BPC-157White Label / Silver Crimp / White Cap | 10/23/2025 | 9.7 | 97.21% | 10 mg → 12.1 mg | Krause Analytical | View |
| GHK-CuWhite Label / Silver Crimp / Blue Cap | 7/10/2025 | 10.0 | 99.95% | 50 mg → 56.7 mg | Krause Analytical | View |
| GHK-CuWhite Label / Silver Crimp / Blue Cap | 7/10/2025 | 10.0 | 99.9% | 50 mg → 54.4 mg | Krause Analytical | View |
| SemaglutideWhite Label / Silver Crimp / Clear Cap | 5/16/2025 | 10.0 | 100% | 5 mg → 32.9 mg | Krause Analytical | View |
| SemaglutideWhite Label / Silver Crimp / Clear Cap | 5/16/2025 | 10.0 | 99.91% | 5 mg → 5.68 mg | Krause Analytical | View |
Which Precision Peptide Co products tested best
GHK-Cu and Ipamorelin have the strongest record, graded A or B.
Melanotan II graded C.
BPC-157 and Semaglutide graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from Precision Peptide Co
If you order from Precision Peptide Co, 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 Precision Peptide Co's prices yet. Shipping, payment and refund terms are on their site.
The official store is precisionpeptideco.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 Precision Peptide Co
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Precision Peptide Co: common questions
Is Precision Peptide Co legit?
We rate lab records, not businesses. Mixed lab record: 21 independent tests, 19 of 20 lots filled to label, median purity 99.74%, 2 of 5 products graded D or E. Each result links to its original certificate in the table above.
What do Precision Peptide Co reviews say?
We don't hold scored customer reviews for Precision Peptide Co yet. The independent lab results on this page are the evidence we have.
Which Precision Peptide Co peptides tested best?
We have graded 5 Precision Peptide Co products. GHK-Cu and Ipamorelin graded A or B. BPC-157 and Semaglutide graded D or E.
Is there a Precision Peptide Co coupon code?
We don't have a verified Precision Peptide Co coupon code. A discount changes the price, not what is in the vial.
Ordering from Precision Peptide Co?
Mixed lab record: 21 independent tests, 19 of 20 lots filled to label, median purity 99.74%, 2 of 5 products graded D or E.
Contact
- US, Tx 76048
- precisionpeptideco.com