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

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75%
Finnrick rating
#204 of 290 Retatrutide vendors
10 of 14 classifiable tests passed
natural 71% · customers 4.7★ (20)
methodology · Purity focus
Finnrick analysis · Retatrutide

Hangzhou Mandy Biotechnology's Retatrutide rating is held down by repeated purity misses and a +49% quantity result despite passing identity. A later pass streak is cleaner, but it has not erased prior volatility or batch-ID gaps.

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vendor intelligence report
Vendor Intelligence Report: Hangzhou Mandy Biotechnology

Corporate records support a real Hangzhou biotech entity, but domain history and archived pages point to a later peptide pivot. A Seychelles B2B trail tied to the site markets precursor chemicals, while channel and payment rails leave the seller hard to pin down.

23 pages9 risk factors assessed2 Jul 2026
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Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%17 Nov 2025: 70%25 Nov 2025: 72%4 Dec 2025: 73%17 Dec 2025: 75%15 Jan 2026: 72%22 Jan 2026: 68%22 Feb 2026: 70%3 Mar 2026: 67%6 Mar 2026: 68%23 Apr 2026: 70%30 Apr 2026: 72%8 May 2026: 73%22 Jun 2026: 74%5 Aug 2026: 75%15 Sept 2026: current 75%70%67%75%Nov 25Sep 26
Showing Retatrutide tests only
Free peptide testing

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

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Hangzhou Mandy Biotechnology Retatrutide test history
COA-backed lab tests
1-10 of 14

About Hangzhou Mandy Biotechnology test results from Finnrick

Hangzhou Mandy Biotechnology 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 Hangzhou Mandy Biotechnology peptides in this dataset are BPC-157 (5 tests), GHK-Cu (6 tests) and Retatrutide (14 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 Retatrutide from Hangzhou Mandy Biotechnology? Mail in a sample (US only) and let us test it for free.

Test my supply