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Ordered GHK-Cu from WllyBIO? Mail in a sample (US only) and let us test it for free.

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90%
Finnrick rating
#20 of 111 GHK-Cu vendors
6 of 6 classifiable tests passed
natural 100% · customers 4.4★ (1)
methodology · Purity focus
Finnrick analysis · GHK-Cu

WllyBIO's GHK-Cu has a traceability caveat: listed tests show no batch identifiers, though identity, purity, and fill clear this purity-focused method. Purity runs 99.72%-99.95%, with fill from -12% to +13%.

methodology →
vendor intelligence report
Vendor Intelligence Report: WllyBIO

Domain timing, Hong Kong registry searches, CMS fingerprints and a sister-domain storefront point away from WllyBIO’s public origin story. The report traces sales personas, payment rails and import exposure without treating the brand as a simple pass/fail call.

23 pages9 risk factors assessed3 Jul 2026
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Peptides
#
Peptide
$/MG
Rating
N
1
GHK-Cuselected
$0.06
90%
6
2
Retatrutide
$0.64
83%
15
3
Tirzepatide
$0.35
78%
12
4
BPC-157
-
44%
5
6
Tesamorelin
$1.86
-
0
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%16 Jul 2025: 87%31 Aug 2025: 88%31 Aug 2025: 89%18 Sept 2025: 89%29 Dec 2025: 90%5 Aug 2026: 91%15 Sept 2026: current 90%87%90%90%Jul 25Sep 26
Showing GHK-Cu tests only
WllyBIO GHK-Cu test history
COA-backed lab tests

About WllyBIO test results from Finnrick

WllyBIO is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 4 peptides and 38 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 WllyBIO peptides in this dataset are BPC-157 (5 tests), GHK-Cu (6 tests) and Retatrutide (15 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 38 recent tests.

Corrections
No corrections.
Free peptide testing

Ordered GHK-Cu from WllyBIO? Mail in a sample (US only) and let us test it for free.

Test my supply