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Ordered Tesamorelin from YB Peptide? Mail in a sample (US only) and let us test it for free.

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49%
Finnrick rating
#23 of 82 Tesamorelin vendors
3 of 5 classifiable tests passed
natural 60% · customers 4.7★ (1)
methodology · Purity focus
Finnrick analysis · Tesamorelin

Early purity misses hold back YB Peptide's Tesamorelin evidence, especially a 91.7% result, while later lots clear the purity/fill screen. The key caveats are missing batch IDs on some tests and no price signal.

methodology →
vendor intelligence report
Vendor Intelligence Report: YB Peptide

We investigated who actually operates YB Peptide — corporate records, ownership trails, web infrastructure, and how its lab results break down product by product. Read the full report before you order.

21 pages8 risk factors assessed13 Jun 2026
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Peptides
#
Peptide
$/MG
Rating
N
1
Retatrutide
$0.95
85%
8
2
Tirzepatide
$0.50
75%
4
3
BPC-157
$0.80
57%
5
4
Tesamorelinselected
-
49%
5
5
GHK-Cu
$0.06
-
0
6
Mazdutide
$2.00
-
0
7
Melanotan II
$0.65
-
0
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%1 Sept 2025: 22%9 Oct 2025: 26%9 Jan 2026: 30%12 Mar 2026: 44%28 Apr 2026: 48%15 Sept 2026: current 49%22%30%49%Sep 25Sep 26
Showing Tesamorelin tests only
YB Peptide Tesamorelin test history
COA-backed lab tests

About YB Peptide test results from Finnrick

YB Peptide is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 4 peptides and 22 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 YB Peptide peptides in this dataset are BPC-157 (5 tests), Retatrutide (8 tests) and Tesamorelin (5 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 22 recent tests.

Corrections
No corrections.
Free peptide testing

Ordered Tesamorelin from YB Peptide? Mail in a sample (US only) and let us test it for free.

Test my supply