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

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+1 more ↓
47%
Finnrick rating
#57 of 106 Tesamorelin vendors
2 of 4 classifiable tests passed
natural 50% · customers 4.2★ (5)
methodology · Purity focus
Finnrick analysis · Tesamorelin

Crestpeptide's Purity focus record is built around Retatrutide, where recent tests show clean identity and very high purity. The evidence is still narrow and batch documentation is mostly missing, with fill results dispersed from modest underfill to overfill and no clear trajectory, so confidence is capped.

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vendor intelligence report
Vendor Intelligence Report: Crestpeptide

The live storefront, unreachable intake domain, and a separate lookalike competitor create an unusually messy domain trail. Corporate records, Hong Kong legal terms, an unnamed COA lab, and payment rails point to unresolved accountability behind the brand.

19 pages5 risk factors assessed2 Jul 2026
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Rating trend
CUMULATIVE FINNRICK RATING
83%+65%+48%+30%+<30%19 Feb 2026: 32%6 Mar 2026: 41%28 Apr 2026: 47%21 Sep 2026: 47%29 Sep 2026: current 47%32%47%Feb 26Sep 26
Showing Tesamorelin tests only
Crestpeptide Tesamorelin test history
COA-backed lab tests

About Crestpeptide test results from Finnrick

Crestpeptide is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 5 peptides and 19 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 Crestpeptide peptides in this dataset are BPC-157 (3 tests), GHK-Cu (3 tests) and Retatrutide (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 19 recent tests.

Corrections
No corrections.
Free peptide testing

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

Test my supply