Nexaph Reviews
Nexaph review: 295 independent lab tests across 15 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is Nexaph legit? Lab record: Mixed
How we rate- 295 independent tests
- 260 of 282 lots filled to label
- Median purity 99.76%
- 9 of 13 products graded D or E
Some of Nexaph's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Cagrilintide
Nexaph graded E. Shanghai Baoju's Cagrilintide graded A across 5 tests.
Buy from Shanghai BaojuAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where Nexaph 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.
Nexaph 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 Nexaph's site.
- GHK-CuAGREAT
- Tests
- 12
- Passed
- 91.7%
- PT-141AGREAT
- Tests
- 3
- Passed
- 100.0%
- RetatrutideCOKAY
- Tests
- 103
- Passed
- 71.8%
- TirzepatideCOKAY
- Tests
- 62
- Passed
- 74.2%
- BPC-157DPOOR
- Tests
- 20
- Passed
- 65.0%
- TesamorelinEBAD
- Tests
- 30
- Passed
- 33.3%
- SemaglutideEBAD
- Tests
- 15
- Passed
- 13.3%
- CagrilintideEBAD
- Tests
- 13
- Passed
- 53.8%
- IpamorelinEBAD
- Tests
- 10
- Passed
- 50.0%
- CJC-1295EBAD
- Tests
- 8
- Passed
- 25.0%
- TB-500EBAD
- Tests
- 6
- Passed
- 40.0%
- MOTS-cEBAD
- Tests
- 6
- Passed
- 16.7%
- NAD+EBAD
- Tests
- 3
- Passed
- 33.3%
- Tests
- 3
- Passed
- —
- CJC-IPA—
- Tests
- 1
- Passed
- —
What the testing shows
Across 282 measured samples from Nexaph, 22 came in more than 5% under the quantity on the label (8%). Another 185 measured more than 5% over. Purity across 289 readings ran from 63.84% to 99.99%, median 99.76%. Samples span Jun 2025 to Oct 2026.
- Under label
- 22/282
- Median purity
- 99.76%
- Latest sample
- Oct 2026
more than 5% short
63.84%–99.99% range
first tested Jun 2025
Our read on Nexaph
177 of Nexaph's 294 graded samples passed (60%), and 88% of all samples were sent in by buyers rather than by the shop.
Results are improving: 78% passed over the latest six months, up from 55% before.
When a sample failed, the most common reason was purity under 99.5% (103 times).
5 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, Nexaph's pass rate is at or above 25% of them, and it has more tests on record than 98% of them.
When and how Nexaph was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (189), BTLabs (54), Chromate (24), Freedom Diagnostics (20)
- Who sent the samples
- buyers 88%, testing programme 12%
- Batches covered
- 150 distinct batch numbers; 27 checked for endotoxins
Why Nexaph's failed samples failed
The 6 most recent failed tests, with the lab's reason.
Tirzepatide · Sep 20, 2026
purity under 99.5%
Cagrilintide · Sep 14, 2026
purity under 99.5%; amount in the vial more than 35% off the label
Tesamorelin · Sep 10, 2026
purity under 99.5%
Tirzepatide · Aug 27, 2026
purity under 99.5%
MOTS-c · Aug 13, 2026
purity under 99.5%
MOTS-c · Jul 17, 2026
purity under 99.5%
Lab testing results
Independent results across 15 products.
Individual lab tests
Date
10/9/2026
Purity
99.9%
Quantity
50 mg → 49.99 mg
Lab
Harrens Lab
Vial
Brown crimp / Purple cap
Date
10/1/2026
Purity
99.9%
Quantity
10 mg → 9.99 mg
Lab
Harrens Lab
Vial
No label / Copper crimp / Blue cap
Date
9/25/2026
Purity
99.9%
Quantity
10 mg → 11.2 mg
Lab
Krause Analytical
Vial
No label / Copper crimp / Black cap
Date
9/24/2026
Purity
99.9%
Quantity
20 mg → 20.7 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Clear Blue cap
Date
9/24/2026
Purity
99.6%
Quantity
10 mg → 11.6 mg
Lab
Krause Analytical
Vial
No label / Copper crimp / Clear Blue cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| GHK-CuBrown crimp / Purple cap | 10/9/2026 | 10.0 | 99.9% | 50 mg → 49.99 mg | Harrens Lab | View |
| BPC-157No label / Copper crimp / Blue cap | 10/1/2026 | 10.0 | 99.9% | 10 mg → 9.99 mg | Harrens Lab | View |
| MOTS-cNo label / Copper crimp / Black cap | 9/25/2026 | 10.0 | 99.9% | 10 mg → 11.2 mg | Krause Analytical | View |
| TirzepatideNo label / Silver crimp / Clear Blue cap | 9/24/2026 | 10.0 | 99.9% | 20 mg → 20.7 mg | Krause Analytical | View |
| BPC-157No label / Copper crimp / Clear Blue cap | 9/24/2026 | 10.0 | 99.6% | 10 mg → 11.6 mg | Krause Analytical | View |
The most-tested shop, with mixed grades
Nexaph has 267 independent tests from five labs, run between June 2025 and August 2026. That is one of the largest records we hold, so the grades here rest on real sample sizes.
GHK-Cu graded A across 11 samples. Retatrutide (100 samples) and Tirzepatide (56) both graded C. MOTS-c, Tesamorelin, CJC-1295, BPC-157, Ipamorelin, Cagrilintide, Semaglutide and TB-500 graded E.
Overfill is the pattern: 174 of 256 vials measured for fill came in more than 5% over label, and 19 more than 5% under. Median purity was 99.7%.
Buying from Nexaph
GHK-Cu has the strongest record here. Retatrutide and Tirzepatide are middling. For the E-graded peptides, compare the better-tested options on this page first.
We don't track Nexaph prices yet. Check the cost per mg on its site before you order.
What to check before you pay
- The lot on the vial matches the certificate - Grades by product: they range from A to E here - Measured amount versus the label - The refund policy before you order
Track Nexaph
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Nexaph: common questions
Is Nexaph legit?
We rate lab records, not businesses. Mixed lab record: 295 independent tests, 260 of 282 lots filled to label, median purity 99.76%, 9 of 13 products graded D or E. Each result links to its original certificate in the table above.
What do Nexaph reviews say?
We don't hold scored customer reviews for Nexaph yet. The independent lab results on this page are the evidence we have.
Which Nexaph peptides tested best?
We have graded 13 Nexaph products. PT-141 and GHK-Cu graded A or B. BPC-157, Cagrilintide, Ipamorelin, TB-500, NAD+, Tesamorelin, CJC-1295, MOTS-c and Semaglutide graded D or E.
Is there a Nexaph coupon or discount code?
We don't have a verified Nexaph coupon or discount code. A discount changes the price, not what is in the vial.
Ordering from Nexaph?
Mixed lab record: 295 independent tests, 260 of 282 lots filled to label, median purity 99.76%, 9 of 13 products graded D or E.