Zhuoyue Biotechnology reviews
Zhuoyue Biotechnology reviews: 37 independent lab tests across 4 products, with a mixed lab record.
Written by the Peptide Vendor Reviews editorial team
Is Zhuoyue Biotechnology legit? Lab record: Mixed
How we rate- 37 independent tests
- 22 of 32 lots filled to label
- Median purity 99.85%
- 1 of 3 products graded D or E
Some of Zhuoyue Biotechnology's products graded D or E. The shops below tested A or B for the same peptides.
Better-tested Tirzepatide
Zhuoyue Biotechnology graded E. Paradigm Peptide's Tirzepatide graded A across 10 tests, $4.97 / 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 Zhuoyue Biotechnology 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.
Tirzepatide
Zhuoyue Biotechnology: grade EZhuoyue Biotechnology 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 Zhuoyue Biotechnology's site.
- RetatrutideAGREAT
- Tests
- 13
- Passed
- 91.7%
- GHK-CuAGREAT
- Tests
- 5
- Passed
- 100.0%
- TirzepatideEBAD
- Tests
- 16
- Passed
- 56.3%
- Tests
- 3
- Passed
- —
What the testing shows
Across 32 measured samples from Zhuoyue Biotechnology, 10 came in more than 5% under the quantity on the label (31%). Another 11 measured more than 5% over. Purity across 34 readings ran from 75.49% to 100%, median 99.85%. Samples span Aug 2025 to Oct 2026.
- Under label
- 10/32
- Median purity
- 99.85%
- Latest sample
- Oct 2026
- Ships from
- China
more than 5% short
75.49%–100% range
first tested Aug 2025
per vendor listing
Our read on Zhuoyue Biotechnology
25 of Zhuoyue Biotechnology's 36 graded samples passed (69%), and 100% of all samples were sent in by buyers rather than by the shop.
Results are improving: 77% passed over the latest six months, up from 65% before.
When a sample failed, the most common reason was purity under 99.5% (7 times).
2 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, Zhuoyue Biotechnology's pass rate is at or above 44% of them, and it has more tests on record than 69% of them.
When and how Zhuoyue Biotechnology was tested
Samples per month. The darker part of each bar failed.
- Labs used
- Krause Analytical (25), BTLabs (11), Ichor Life Sciences (1)
- Who sent the samples
- buyers 100%
- Batches covered
- 9 distinct batch numbers; 2 checked for endotoxins
Why Zhuoyue Biotechnology's failed samples failed
The 6 most recent failed tests, with the lab's reason.
Tirzepatide · Jul 13, 2026
the lab could not confirm it was the labelled peptide
TB-500 · May 27, 2026
purity under 99.5%; amount in the vial more than 35% off the label
Tirzepatide · May 2, 2026
amount in the vial more than 35% off the label
Tirzepatide · Mar 25, 2026
the lab could not confirm it was the labelled peptide
Tirzepatide · Mar 4, 2026
purity under 99.5%
Tirzepatide · Mar 4, 2026
purity under 99.5%
Lab testing results
Independent results across 4 products.
Individual lab tests
Date
10/6/2026
Purity
100%
Quantity
40 mg → 49.141 mg
Lab
Ichor Life Sciences
Vial
No label / Silver crimp / Violet cap
Date
8/12/2026
Purity
99.9%
Quantity
10 mg → 9.04 mg
Lab
Krause Analytical
Vial
No label, Silver crimp, White cap
Date
8/2/2026
Purity
99.9%
Quantity
30 mg → 32.8 mg
Lab
BTLabs
Vial
No label, Silver crimp, Red cap
Date
7/23/2026
Purity
99.9%
Quantity
50 mg → 42.9 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Blue cap
Date
7/14/2026
Purity
99.9%
Quantity
20 mg → 17.3 mg
Lab
Krause Analytical
Vial
No label / Silver crimp / Blue cap
| Product | Date | Score | Purity | Quantity | Lab | COA |
|---|---|---|---|---|---|---|
| RetatrutideNo label / Silver crimp / Violet cap | 10/6/2026 | 10.0 | 100% | 40 mg → 49.141 mg | Ichor Life Sciences | View |
| RetatrutideNo label, Silver crimp, White cap | 8/12/2026 | 10.0 | 99.9% | 10 mg → 9.04 mg | Krause Analytical | View |
| TirzepatideNo label, Silver crimp, Red cap | 8/2/2026 | 10.0 | 99.9% | 30 mg → 32.8 mg | BTLabs | View |
| GHK-CuNo label / Silver crimp / Blue cap | 7/23/2026 | 10.0 | 99.9% | 50 mg → 42.9 mg | Krause Analytical | View |
| TirzepatideNo label / Silver crimp / Blue cap | 7/14/2026 | 10.0 | 99.9% | 20 mg → 17.3 mg | Krause Analytical | View |
Which Zhuoyue Biotechnology products tested best
GHK-Cu and Retatrutide have the strongest record, graded A or B.
Tirzepatide graded D or E: a large share of its samples missed purity or quantity thresholds.
Buying from Zhuoyue Biotechnology
If you order from Zhuoyue Biotechnology, 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 Zhuoyue Biotechnology's prices yet. Shipping, payment and refund terms are on their site.
The official store is 85266140436 Whatsapp. 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 Zhuoyue Biotechnology
Create a free account to save this vendor, get alerts for new lab tests, and watch price changes.
Zhuoyue Biotechnology: common questions
Is Zhuoyue Biotechnology legit?
We rate lab records, not businesses. Mixed lab record: 37 independent tests, 22 of 32 lots filled to label, median purity 99.85%, 1 of 3 products graded D or E. Each result links to its original certificate in the table above.
What do Zhuoyue Biotechnology reviews say?
We don't hold scored customer reviews for Zhuoyue Biotechnology yet. The independent lab results on this page are the evidence we have.
Which Zhuoyue Biotechnology peptides tested best?
We have graded 3 Zhuoyue Biotechnology products. GHK-Cu and Retatrutide graded A or B. Tirzepatide graded D or E.
Is there a Zhuoyue Biotechnology coupon code?
We don't have a verified Zhuoyue Biotechnology coupon code. A discount changes the price, not what is in the vial.
Where does Zhuoyue Biotechnology ship from?
Public listings place Zhuoyue Biotechnology's shipping origin in China. Check the shop's own shipping page before ordering, as origin can change.
Contact
- China
- 85266140436 Whatsapp