NEW SITE — FASTER TURNAROUND, MORE LABS. READ ON
Free peptide testing

Ordered Retatrutide from Zhuoyan Peptides? Mail in a sample (US only) and let us test it for free.

Test my supply
73%
Finnrick rating
#304 of 378 Retatrutide vendors
2 of 4 classifiable tests passed
natural 50%
methodology · Purity focus
Finnrick analysis · Retatrutide

Zhuoyan Peptides' Retatrutide record is volatile: a clean 99.7% purity/+1% fill result was followed days later by an identity failure with 0% purity and 0 mg found. Sparse evidence means prior smoothing matters; inspect the COAs and batch/캁

methodology →
vendor intelligence report
Vendor Intelligence Report: Zhuoyan Peptides

WHOIS records show a current storefront and an older associated domain under separate privacy-protected registrations, with no channel map tying them together. Corporate, review, and payment artifacts remain missing where buyer recourse would normally be tested.

16 pages4 risk factors assessed2 Jul 2026
read the report
Peptides
#
Peptide
$/MG
Rating
N
1
Retatrutideselected
$1.17
73%
4
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%13 May 2026: 80%18 May 2026: 76%16 Jun 2026: 77%16 Jun 2026: 73%29 Sep 2026: current 73%80%73%May 26Sep 26
Showing Retatrutide tests only
Zhuoyan Peptides Retatrutide test history
COA-backed lab tests

About Zhuoyan Peptides test results from Finnrick

Zhuoyan Peptides is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 1 peptide and 4 tests, including ratings, observed price signals, recent test dates, and correction history where available.

Finnrick ratings are calculated from published sample data using the selected rating standard. The default standard evaluates purity, dose accuracy, and label quality, then adjusts low-volume results so small sample counts do not appear more certain than the data supports.

The most visible Zhuoyan Peptides peptides in this dataset are Retatrutide (4 tests). Use the peptide table above to compare the current Finnrick rating, price per mg, and sample volume for each peptide.

Recent tests and corrections are shown below when available. Samples may be acquired by Finnrick directly or submitted through Finnrick testing programs; the goal is to make safety and supply-chain evidence easier to evaluate than vendor marketing claims alone. This page currently lists 4 recent tests.

Corrections
No corrections.
Free peptide testing

Ordered Retatrutide from Zhuoyan Peptides? Mail in a sample (US only) and let us test it for free.

Test my supply