8X tested
A complete testing panel for every batch.
The benchmark behind every batch
The Purple Standard™
A higher standard for what gets tested, what gets documented, and what earns the Purple name.
The framework behind every product we release—built around verification, clear documentation and Research Use Only.
99%+ purity
Our minimum batch-release threshold.
Batch-level proof
Original documents, shown where supplied.
Why this exists
A standard built to be proven.
A premium label means nothing without disciplined work behind it. Purple uses a repeatable system for testing, reviewing, documenting and releasing every batch.
- Systems first. Quality is designed into the process.
- Verify, then release. Testing comes before availability.
- Proof before promotion. Supplied documents are published.
- Research stays research. Research Use Only remains clear.
8X testing · every batch
1 result is not enough.
Each part of the 8X panel answers a different question before a batch is cleared.
01
Peptide purity
RP-HPLC
02
Net peptide content
HPLC quantitation
03
Identity
Reference match
04
Appearance
Visual inspection
05
Fentanyl screen
Immunoassay
06
Heavy metals
ICP-MS
07
Sterility
Microbial detection
08
Endotoxin
Kinetic method
The certificate library shows only the original documents supplied for each current batch. Missing documents or values are never invented.
Purity threshold
Purity you can verify.
Every Purple batch is held to a 99%+ purity threshold, measured through RP-HPLC analysis.
Below the threshold means no release.
Documentation
Proof you can open.
Current original certificates are available directly, while unavailable documentation is clearly marked pending.
Open the COA libraryHow it works
The path to Purple Verified™
Source
Qualified material selection
Test
The complete 8X panel
Review
Results and documents aligned
Release
Purple Verified™ status earned
No alignment means no release.
4 principles
What the standard protects.
Purity
99%+ is the minimum threshold for every Purple batch.
Precision
Identity, content and physical integrity are checked.
Proof
Batch documentation makes the available evidence visible.
Protection
Release follows the complete testing and review process.
Continue with Purple
Questions about our standard?
Purple Direct gives researchers clear, human answers.