Is Xian Yihang Technology Legit
Is Xian Yihang Technology Legit? 80 independent lab tests across 8 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Lab record: Mixed
How we rate- 80 independent tests
- 64 of 76 lots filled to label
- Median purity 99.9%
- 5 of 8 products graded D or E
Some of Xian Yihang Technology's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Tesamorelin
Xian Yihang Technology graded E. Shanghai ERP peptide Biotechnology's Tesamorelin graded A across 13 tests.
Buy from Shanghai ERP peptide BiotechnologyAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where Xian Yihang Technology 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.
Tesamorelin
Xian Yihang Technology: grade ESemaglutide
Xian Yihang Technology: grade ETB-500
Xian Yihang Technology: grade EXian Yihang Technology 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 Xian Yihang Technology's site.
- BPC-157AGREAT
- Tests
- 5
- Passed
- 100.0%
- TirzepatideCOKAY
- Tests
- 28
- Passed
- 78.6%
- GHK-CuCOKAY
- Tests
- 7
- Passed
- 71.4%
- RetatrutideDPOOR
- Tests
- 22
- Passed
- 68.2%
- TesamorelinEBAD
- Tests
- 7
- Passed
- 57.1%
- SemaglutideEBAD
- Tests
- 4
- Passed
- 50.0%
- TB-500EBAD
- Tests
- 4
- Passed
- 50.0%
- IpamorelinEBAD
- Tests
- 3
- Passed
- 33.3%
What the testing shows
Across 76 measured samples from Xian Yihang Technology, 12 came in more than 5% under the quantity on the label (16%). Another 29 measured more than 5% over. Purity across 79 readings ran from 84.2% to 99.97%, median 99.9%. Samples span Jun 2025 to Jul 2026.
- Under label
- 12/76
- Median purity
- 99.9%
- Latest sample
- Jul 2026
- Ships from
- China
more than 5% short
84.2%–99.97% range
first tested Jun 2025
per vendor listing
Our read on Xian Yihang Technology
56 of Xian Yihang Technology's 80 graded samples passed (70%), and 100% of all samples were sent in by buyers rather than by the shop.
The pass rate has held steady: 68% over the latest six months against 72% before.
When a sample failed, the most common reason was purity under 99.5% (19 times).
1 sample failed identity, meaning the lab could not confirm the vial held the labelled peptide.
Against the 302 shops with at least five graded tests, Xian Yihang Technology's pass rate is at or above 44% of them, and it has more tests on record than 87% of them.
When and how Xian Yihang Technology was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (56), BTLabs (19), Chromate (3), Janoshik (1)
- Who sent the samples
- buyers 100%
- Batches covered
- 19 distinct batch numbers; 7 checked for endotoxins
Why Xian Yihang Technology's failed samples failed
The 6 most recent failed tests, with the lab's reason.
Semaglutide · Jul 13, 2026
amount in the vial more than 35% off the label
Retatrutide · Apr 23, 2026
purity under 99.5%
Ipamorelin · Mar 21, 2026
purity under 99.5%; amount in the vial more than 35% off the label
Tirzepatide · Mar 7, 2026
amount in the vial more than 35% off the label
GHK-Cu · Mar 6, 2026
the lab could not confirm it was the labelled peptide
Tirzepatide · Mar 6, 2026
purity under 99.5%
Lab testing results
Independent results across 8 products.
Individual lab tests
Date
7/13/2026
Purity
99.9%
Quantity
10 mg → 14.1 mg
Lab
Krause Analytical
Vial
White label / Silver crimp / White cap
Date
7/9/2026
Purity
99.9%
Quantity
60 mg → 64 mg
Lab
BTLabs
Vial
No label / Silver crimp / Orange cap
Date
6/24/2026
Purity
99.6%
Quantity
5 mg → 4.54 mg
Lab
Krause Analytical
Vial
White label / Silver crimp / Yellow cap
Date
6/22/2026
Purity
99.9%
Quantity
30 mg → 28.6 mg
Lab
Krause Analytical
Vial
White label / Silver crimp / Black cap
Date
6/8/2026
Purity
99.8%
Quantity
120 mg → 126.3 mg
Lab
BTLabs
Vial
White label / Silver crimp / Gray cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| SemaglutideWhite label / Silver crimp / White cap | 7/13/2026 | 10.0 | 99.9% | 10 mg → 14.1 mg | Krause Analytical | View |
| RetatrutideNo label / Silver crimp / Orange cap | 7/9/2026 | 10.0 | 99.9% | 60 mg → 64 mg | BTLabs | View |
| BPC-157White label / Silver crimp / Yellow cap | 6/24/2026 | 10.0 | 99.6% | 5 mg → 4.54 mg | Krause Analytical | View |
| TirzepatideWhite label / Silver crimp / Black cap | 6/22/2026 | 10.0 | 99.9% | 30 mg → 28.6 mg | Krause Analytical | View |
| TirzepatideWhite label / Silver crimp / Gray cap | 6/8/2026 | 10.0 | 99.8% | 120 mg → 126.3 mg | BTLabs | View |
Which Xian Yihang Technology products tested best
BPC-157 has the strongest record, graded A or B.
Tirzepatide and GHK-Cu graded C.
Retatrutide, Tesamorelin, Semaglutide, TB-500 and Ipamorelin graded D or E: a large share of their samples missed purity or quantity thresholds.
Buying from Xian Yihang Technology
If you order from Xian Yihang Technology, 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 Xian Yihang Technology's prices yet. Shipping, payment and refund terms are on their site.
The official store is www.echemi.com/shop-us20240605143452096/index.html#contacts. 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 Xian Yihang Technology
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Xian Yihang Technology: common questions
Is Xian Yihang Technology legit?
We rate lab records, not businesses. Mixed lab record: 80 independent tests, 64 of 76 lots filled to label, median purity 99.9%, 5 of 8 products graded D or E. Each result links to its original certificate in the table above.
What do Xian Yihang Technology reviews say?
We don't hold scored customer reviews for Xian Yihang Technology yet. The independent lab results on this page are the evidence we have.
Which Xian Yihang Technology peptides tested best?
We have graded 8 Xian Yihang Technology products. BPC-157 graded A or B. Retatrutide, Tesamorelin, Semaglutide, TB-500 and Ipamorelin graded D or E.
Is there a Xian Yihang Technology coupon code?
We don't have a verified Xian Yihang Technology coupon code. A discount changes the price, not what is in the vial.
Where does Xian Yihang Technology ship from?
Public listings place Xian Yihang Technology's shipping origin in China. Check the shop's own shipping page before ordering, as origin can change.
Ordering from Xian Yihang Technology?
Mixed lab record: 80 independent tests, 64 of 76 lots filled to label, median purity 99.9%, 5 of 8 products graded D or E.