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Peptide testing

Ordered Tirzepatide from Mammoth Biotech? Mail in a sample (US only) and let us test it.

Test my supply
72%
Finnrick rating
#244 of 281 Tirzepatide vendors
2 of 4 classifiable tests passed
natural 50% · customers 4.6★ (2)
methodology · Purity focus
methodology →
Peptides
#
Peptide
$/MG
Rating
N
1
Tirzepatideselected
$0.27
72%
4
2
GHK-Cu
$0.05
-
0
3
Retatrutide
$0.71
-
0
4
Semaglutide
$0.60
-
0
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%19 Sep 2026: 80%19 Sep 2026: 81%1 Oct 2026: 77%1 Oct 2026: 73%12 Nov 2026: current 72%80%72%Sep 26Nov 26
Showing Tirzepatide tests only
Mammoth Biotech Tirzepatide test history
COA-backed lab tests

About Mammoth Biotech test results from Finnrick

Mammoth Biotech 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 Mammoth Biotech peptides in this dataset are Tirzepatide (4 tests), GHK-Cu (0 tests) and Retatrutide (0 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.
Peptide testing

Ordered Tirzepatide from Mammoth Biotech? Mail in a sample (US only) and let us test it.

Test my supply