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

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76%
Finnrick rating
#198 of 290 Retatrutide vendors
3 of 5 classifiable tests passed
natural 60%
methodology · Purity focus
Finnrick analysis · Retatrutide

Coastal Peptides Retatrutide is mixed under the purity-focus method: identity passed, but two tests missed purity at 98.631% and 98.33% before a 99.81% rebound. Batch IDs are absent and actual lab evidence stops in Mar 2025.

methodology →
vendor intelligence report
Vendor Intelligence Report: Coastal Peptides

Corporate and contact records show no verifiable operator, a fictitious address, and a new generic inbox paired with a geographically inconsistent phone number. The dossier also maps a telehealth funnel and a separate official-looking Coastal storefront with unresolved control.

27 pages8 risk factors assessed2 Jul 2026
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Peptides
#
Peptide
$/MG
Rating
N
1
Tirzepatide
$12.60
79%
5
2
Retatrutideselected
$16.20
76%
5
3
Semaglutide
$12.60
51%
6
4
BPC-157
$4.95
48%
5
5
CJC-1295
$7.65
31%
5
Contact channels
Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%27 Feb 2025: 66%27 Feb 2025: 68%28 Feb 2025: 65%28 Feb 2025: 62%20 Mar 2025: 65%15 Sept 2026: current 76%66%76%Feb 25Sep 26
Showing Retatrutide tests only
Coastal Peptides Retatrutide test history
COA-backed lab tests

About Coastal Peptides test results from Finnrick

Coastal Peptides is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 5 peptides and 26 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 Coastal Peptides peptides in this dataset are Semaglutide (6 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 26 recent tests.

Corrections
No corrections.
Free peptide testing

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

Test my supply