Rayshine Peptide BiochemicalsGHK-Cu
Ordered GHK-Cu from Rayshine Peptide Biochemicals? Mail in a sample (US only) and let us test it for free.
Test my supplyRayshine Peptide Biochemicals shows its strongest purity-focus evidence in Tirzepatide, with identity, high-purity, and tight-fill results across a small COA set. Retatrutide is more dispersed: earlier purity/fill misses, including a large overfill, are followed by passing results, but uneven batch IDs and narrow peptide coverage moderate confidence.
We investigated who actually operates Rayshine Peptide Biochemicals — corporate records, ownership trails, web infrastructure, and how its lab results break down product by product. Read the full report before you order.
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| Date | Result | Test | Lab | Purity | Dosage | Label | COA |
|---|---|---|---|---|---|---|---|
| 19 Sep 2026 | Pass | 6p5g9g3 Tested | lab name | View COA | |||
| 15 Sep 2026 | Pass | ntmavbf Tested | lab name | View COA | |||
| 26 Jun 2026 | Fail | d94xchq Tested | lab name | View COA | |||
About Rayshine Peptide Biochemicals test results from Finnrick
Rayshine Peptide Biochemicals is a peptide vendor tracked in Finnrick's independent testing dataset. This page compiles batch-level results across 3 peptides and 18 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 Rayshine Peptide Biochemicals peptides in this dataset are GHK-Cu (3 tests), Retatrutide (11 tests) and Tirzepatide (4 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 18 recent tests.
Ordered GHK-Cu from Rayshine Peptide Biochemicals? Mail in a sample (US only) and let us test it for free.
Test my supply