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Ordered peptides from ZyBio Peptides? Mail in a sample (US only) and let us test it.

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76%
Finnrick rating
#190 of 457 ranked vendors
2 of 3 classifiable tests passed
methodology · Purity focus
methodology →
Peptides
#
Peptide
$/MG
Rating
N
1
Retatrutide
$1.12
76%
3
2
GLOW
-
-
0
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%10 Sep 2025: 72%18 Mar 2026: 76%2 Jun 2026: 78%4 Oct 2026: current 76%72%76%76%Sep 25Oct 26
ZyBio Peptides test history
COA-backed lab tests
DateResultTestLabPurityDosageLabelCOA
2 Jun 2026
Pass
Retatrutide
lab nameView COA
18 Mar 2026
Fail
Retatrutide
lab nameView COA
10 Sep 2025
Pass
Retatrutide
lab nameView COA

About ZyBio Peptides test results from Finnrick

ZyBio Peptides is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 1 peptide and 3 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 ZyBio Peptides peptides in this dataset are Retatrutide (3 tests) and GLOW (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 3 recent tests.

Corrections
No corrections.
Free peptide testing

Ordered peptides from ZyBio Peptides? Mail in a sample (US only) and let us test it.

Test my supply