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

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84%
Finnrick rating
#113 of 140 GHK-Cu vendors
2 of 3 classifiable tests passed
natural 67% · customers 4.8★ (3)
methodology · Purity focus
Finnrick analysis · GHK-Cu

Yidan Biotech shows a recent improving purity-focused record, with Retatrutide and Tirzepatide both rebounding into cleaner identity-confirmed results after early purity misses. The signal is still narrow and somewhat dispersed: Retatrutide has one 98.01% purity miss, Tirzepatide one 98.77% miss, and sparse batch IDs limit traceability.

methodology →
vendor intelligence report
Vendor Intelligence Report: Yidan Biotech

Chinese corporate records tie Yidanbio.com to a named Shanghai company, while look-alike biotech/pharma entities are ruled out. The report follows a Bestway policy artifact, +852 sales routing and off-platform Sunny accounts without treating them as proved ownership links.

16 pages5 risk factors assessed2 Jul 2026
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Peptides
#
Peptide
$/MG
Rating
N
1
GHK-Cuselected
$0.11
84%
3
2
Tirzepatide
$0.49
81%
7
3
Retatrutide
$0.68
81%
7
4
5-Amino-1MQ
$0.22
60%
3
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%20 Feb 2026: 89%1 Mar 2026: 89%23 Jul 2026: 85%29 Sep 2026: current 84%89%84%Feb 26Sep 26
Showing GHK-Cu tests only
Yidan Biotech GHK-Cu test history
COA-backed lab tests

About Yidan Biotech test results from Finnrick

Yidan Biotech is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 4 peptides and 20 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 Yidan Biotech peptides in this dataset are 5-Amino-1MQ (3 tests), GHK-Cu (3 tests) and Retatrutide (7 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 20 recent tests.

Corrections
No corrections.
Free peptide testing

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

Test my supply