Guangzhou yunyu trading reviews
Guangzhou yunyu trading reviews: 10 independent lab tests across 1 product, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is Guangzhou yunyu trading legit? Lab record: Mixed
How we rate- 10 independent tests
- 5 of 6 lots filled to label
- Median purity 99.85%
- 1 of 1 product graded D or E
Some of Guangzhou yunyu trading's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Retatrutide
Guangzhou yunyu trading graded E. Paradigm Peptide's Retatrutide graded A across 8 tests, $10.00 / mg.
Buy from Paradigm PeptideAll better-tested optionsPeptide Vendor Reviews independently tests products and verifies reviews. Public methodology, no pay-to-rank.
Better-tested options
Where Guangzhou yunyu trading 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.
Retatrutide
Guangzhou yunyu trading: grade EGuangzhou yunyu trading 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 Guangzhou yunyu trading's site.
- RetatrutideEBAD
- Tests
- 10
- Passed
- 50.0%
What the testing shows
Across 6 measured samples from Guangzhou yunyu trading, 1 came in more than 5% under the quantity on the label (17%). Another 2 measured more than 5% over. Purity across 6 readings ran from 51.1% to 99.99%, median 99.85%. Samples span Jan 2026 to Oct 2026.
- Under label
- 1/6
- Median purity
- 99.85%
- Latest sample
- Oct 2026
- Ships from
- China
more than 5% short
51.1%–99.99% range
first tested Jan 2026
per vendor listing
Our read on Guangzhou yunyu trading
5 of Guangzhou yunyu trading's 10 graded samples passed (50%), and 100% of all samples were sent in by buyers rather than by the shop.
Results are slipping: 17% passed over the latest six months, down from 100% before.
When a sample failed, the most common reason was the lab could not confirm it was the labelled peptide (4 times).
Against the 302 shops with at least five graded tests, Guangzhou yunyu trading's pass rate is at or above 16% of them, and it has more tests on record than 31% of them.
When and how Guangzhou yunyu trading was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (6), BTLabs (3), PharmLabs (1)
- Who sent the samples
- buyers 100%
- Batches covered
- 3 distinct batch numbers; 3 checked for endotoxins
Why Guangzhou yunyu trading's failed samples failed
The 5 most recent failed tests, with the lab's reason.
Retatrutide · Oct 8, 2026
the lab could not confirm it was the labelled peptide
Retatrutide · Oct 6, 2026
the lab could not confirm it was the labelled peptide
Retatrutide · Sep 19, 2026
the lab could not confirm it was the labelled peptide
Retatrutide · Aug 12, 2026
the lab could not confirm it was the labelled peptide
Retatrutide · Aug 5, 2026
purity under 99.5%; amount in the vial more than 35% off the label
Lab testing results
Independent results across 1 product.
Individual lab tests
Date
10/8/2026
Purity
—
Quantity
—
Lab
Krause Analytical
Vial
No Label / Silver crimp / Black cap
Date
10/6/2026
Purity
—
Quantity
—
Lab
Krause Analytical
Vial
No label / Gold crimp / Purple cap
Date
9/29/2026
Purity
99.99%
Quantity
30 mg → 33.24 mg
Lab
PharmLabs
Vial
No label / Silver crimp / Blue cap
Date
9/19/2026
Purity
—
Quantity
—
Lab
BTLabs
Vial
No label / Gold crimp / Purple cap
Date
8/12/2026
Purity
—
Quantity
—
Lab
Krause Analytical
Vial
White label / Silver crimp / Blue cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideNo Label / Silver crimp / Black cap | 10/8/2026 | — | — | Krause Analytical | View | |
| RetatrutideNo label / Gold crimp / Purple cap | 10/6/2026 | — | — | Krause Analytical | View | |
| RetatrutideNo label / Silver crimp / Blue cap | 9/29/2026 | 10.0 | 99.99% | 30 mg → 33.24 mg | PharmLabs | View |
| RetatrutideNo label / Gold crimp / Purple cap | 9/19/2026 | — | — | BTLabs | View | |
| RetatrutideWhite label / Silver crimp / Blue cap | 8/12/2026 | — | — | Krause Analytical | View |
Which Guangzhou yunyu trading products tested best
Retatrutide graded D or E: a large share of its samples missed purity or quantity thresholds.
Buying from Guangzhou yunyu trading
We don't track Guangzhou yunyu trading's prices yet. Shipping, payment and refund terms are on their site.
The official store is www.yunyushangmao.top. 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 Guangzhou yunyu trading
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Guangzhou yunyu trading: common questions
Is Guangzhou yunyu trading legit?
We rate lab records, not businesses. Mixed lab record: 10 independent tests, 5 of 6 lots filled to label, median purity 99.85%, 1 of 1 product graded D or E. Each result links to its original certificate in the table above.
What do Guangzhou yunyu trading reviews say?
We don't hold scored customer reviews for Guangzhou yunyu trading yet. The independent lab results on this page are the evidence we have.
Which Guangzhou yunyu trading peptides tested best?
We have graded 1 Guangzhou yunyu trading product. Retatrutide graded D or E.
Is there a Guangzhou yunyu trading coupon code?
We don't have a verified Guangzhou yunyu trading coupon code. A discount changes the price, not what is in the vial.
Where does Guangzhou yunyu trading ship from?
Public listings place Guangzhou yunyu trading's shipping origin in China. Check the shop's own shipping page before ordering, as origin can change.
Ordering from Guangzhou yunyu trading?
Mixed lab record: 10 independent tests, 5 of 6 lots filled to label, median purity 99.85%, 1 of 1 product graded D or E.