Research
How we verify every compound we sell.
Every compound we release has been independently tested by Janoshik Analytical, a European laboratory with no commercial relationship to any peptide supplier. Third-party verification is not a marketing claim for us: it is the non-negotiable baseline that separates responsible research supply from guesswork.
Method 01
What is HPLC testing?
High-Performance Liquid Chromatography (HPLC) is the analytical method used to determine the purity of a compound. A sample is dissolved in a solvent and pushed through a column under high pressure. Different molecules travel through the column at different rates, and the detector produces a chromatogram: a map of what is present and in what proportion.
The result is expressed as a purity percentage. A compound that reads at 99.1% HPLC purity contains 99.1% of the target peptide, with the remaining 0.9% accounted for by impurities, degradation products, or residual solvents. This tells the researcher exactly what they are working with.
Manufacturer-issued certificates of analysis rely on the same manufacturer having incentive to report accurately, which is a structural conflict. Independent HPLC testing removes that conflict entirely: Janoshik has no financial relationship with any compound supplier, so the result reflects what is actually in the vial.
What it measures
The purity percentage of the target compound: how much of what is in the vial is actually the peptide it claims to be.
Why it matters
Impurities affect research outcomes. A compound with low purity introduces uncontrolled variables. Knowing the exact purity figure allows for accurate research dosing and interpretation.
Why third-party matters
A manufacturer-issued COA tests their own product. An independent lab has no stake in the result. The difference is the difference between self-reporting and verification.
Our target
We do not release any batch that falls below research-grade purity standards. The exact figure for each batch is published on our COA page.
Method 02
What is mass spectrometry?
Mass spectrometry (MS) identifies the exact molecular identity of a compound. The sample is ionised, and the resulting ions are sorted by their mass-to-charge ratio. Every molecule has a unique molecular weight: the mass spectrum is essentially a molecular fingerprint.
Where HPLC tells you how pure a compound is, mass spectrometry tells you whether the compound is what it claims to be. A sample could test at 98% HPLC purity and still be the wrong compound entirely. Mass spec closes that gap: the molecular weight either matches the expected peptide, or it does not.
Used together, HPLC and mass spectrometry provide a complete picture: identity confirmed, purity quantified. That combination is what Janoshik runs on every batch we submit, and it is what distinguishes a verified compound from one that merely carries a label.
What it confirms
The molecular identity of the compound: that the peptide in the vial matches the expected molecular weight of the peptide described on the label.
How it differs from HPLC
HPLC measures purity (how much of the target is present). Mass spectrometry confirms identity (whether the target is the correct compound at all). Both are necessary.
Why this matters for research
Research relies on using the compound it intends to use. An incorrect compound invalidates any downstream conclusion. Identity confirmation is the first check that should happen before any other analysis.
Our testing partner
Who is Janoshik Analytical?
Janoshik Analytical is an independent European laboratory specialising in the analysis of research compounds, including peptides, small molecules, and pharmaceutical reference standards. They operate with no commercial ties to any peptide supplier or manufacturer, which is the foundational requirement for meaningful independent testing.
Within the research peptide community, Janoshik is widely regarded as the gold standard. Their testing methodology is consistent, their results are publicly verifiable, and their independence is well established. When a supplier publishes Janoshik results, the community knows what that means.
Each test we submit covers HPLC purity analysis and mass spectrometry identity confirmation. The cost of a full Janoshik panel sits at approximately $500 NZD per batch. Most suppliers skip this step entirely, either absorbing untested compounds into their catalogue or relying on manufacturer-issued documentation that serves no independent verification function. We do not consider either approach acceptable.
From source to your door
Our process.
01
Source
Compounds are synthesised to research-grade specification. We select suppliers on the basis of quality, not price, and we do not stock what we cannot verify.
02
Test
Every batch is submitted to Janoshik Analytical for HPLC purity testing and mass spectrometry identity confirmation before any units are released for sale.
03
Verify
Results are published on our COA page, linked to the specific batch. The lot number on your vial corresponds directly to the certificate you can view online.
04
Ship
Orders are cold-chain packaged with an insulated liner and a frozen cold pack included as standard, not as an upgrade. Peptide integrity requires temperature control throughout transit.
Full transparency
View our certificates.
Every batch we release has a corresponding Certificate of Analysis from Janoshik Analytical. Results are publicly accessible, linked by lot number, and updated each time a new batch is released. View them here.
If you receive a vial and the lot number does not correspond to a certificate on our COA page, contact us. That should never happen, and we want to know if it does.
Verified compounds, ready to order