Zhuoyan Peptides reviews
Zhuoyan Peptides reviews: 4 independent lab tests across 1 product, with a limited lab record.
Written by the Peptide Vendor Reviews editorial team
Is Zhuoyan Peptides legit? Lab record: Limited
How we rate- 4 independent tests
- 2 of 2 lots filled to label
- Median purity 99.75%
- 1 of 1 product graded D or E
Some of Zhuoyan Peptides's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Retatrutide
Zhuoyan Peptides 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 Zhuoyan 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.
Retatrutide
Zhuoyan Peptides: grade EZhuoyan 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 Zhuoyan Peptides' site.
- RetatrutideEBAD
- Tests
- 4
- Passed
- 50.0%
What the testing shows
Across 2 measured samples from Zhuoyan Peptides, 0 came in more than 5% under the quantity on the label (0%). Purity across 2 readings ran from 99.7% to 99.8%, median 99.75%. Samples span May 2026 to Jun 2026.
- Under label
- 0/2
- Median purity
- 99.75%
- Latest sample
- Jun 2026
more than 5% short
99.7%–99.8% range
first tested May 2026
Our read on Zhuoyan Peptides
2 of Zhuoyan Peptides' 4 graded samples passed (50%), and 100% of all samples were sent in by buyers rather than by the shop.
When a sample failed, the most common reason was the lab could not confirm it was the labelled peptide (2 times).
When and how Zhuoyan Peptides was tested
Samples per month. The darker part of each bar failed.
- Labs used
- BTLabs (4)
- Who sent the samples
- buyers 100%
- Batches covered
- 4 distinct batch numbers
Why Zhuoyan Peptides' failed samples failed
The 2 most recent failed tests, with the lab's reason.
Retatrutide · Jun 16, 2026
the lab could not confirm it was the labelled peptide
Retatrutide · May 18, 2026
the lab could not confirm it was the labelled peptide
Lab testing results
Independent results across 1 product.
Individual lab tests
Date
6/16/2026
Purity
99.8%
Quantity
15 mg → 15.2 mg
Lab
BTLabs
Vial
No label / Silver crimp / Black cap
Date
5/18/2026
Purity
—
Quantity
—
Lab
BTLabs
Vial
No label / Silver crimp / White cap
Date
5/13/2026
Purity
99.7%
Quantity
10 mg → 10.1 mg
Lab
BTLabs
Vial
No label / Silver crimp / Yellow cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| Retatrutide | 6/16/2026 | — | — | BTLabs | View | |
| RetatrutideNo label / Silver crimp / Black cap | 6/16/2026 | 10.0 | 99.8% | 15 mg → 15.2 mg | BTLabs | View |
| RetatrutideNo label / Silver crimp / White cap | 5/18/2026 | — | — | BTLabs | View | |
| RetatrutideNo label / Silver crimp / Yellow cap | 5/13/2026 | 10.0 | 99.7% | 10 mg → 10.1 mg | BTLabs | View |
Which Zhuoyan Peptides products tested best
Retatrutide graded D or E: a large share of its samples missed purity or quantity thresholds.
Buying from Zhuoyan Peptides
We don't track Zhuoyan Peptides' prices yet. Shipping, payment and refund terms are on their site.
The official store is www.zhuoyan-peptides.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 Zhuoyan Peptides
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Zhuoyan Peptides: common questions
Is Zhuoyan Peptides legit?
We rate lab records, not businesses. Limited lab record: 4 independent tests, 2 of 2 lots filled to label, median purity 99.75%, 1 of 1 product graded D or E. Each result links to its original certificate in the table above.
What do Zhuoyan Peptides reviews say?
We don't hold scored customer reviews for Zhuoyan Peptides yet. The independent lab results on this page are the evidence we have.
Which Zhuoyan Peptides peptides tested best?
We have graded 1 Zhuoyan Peptides product. Retatrutide graded D or E.
Is there a Zhuoyan Peptides coupon code?
We don't have a verified Zhuoyan Peptides coupon code. A discount changes the price, not what is in the vial.
Ordering from Zhuoyan Peptides?
Limited lab record: 4 independent tests, 2 of 2 lots filled to label, median purity 99.75%, 1 of 1 product graded D or E.