Research Library
Testing & quality
What our batch reports test, who issues them, how to check one yourself, and what they do not cover. Everything below is taken from the published reports, or is a rule this site applies when it shows them.
- Published
- 38 published reports
- Coverage
- 27 products
- Laboratory
- Kovera Labs
Who issues the reports
Every report we have published is issued by Kovera Labs, the laboratory named on the report. Each carries a report number and an access code, which you can enter at koveralabs.com/verify to check it with the laboratory rather than relying on our copy.
Two kinds of report
Purity and identity (36 reports)
Purity by RP-HPLC, C18 column, DAD detection at 214 nm; or RP-HPLC, C18 column, DAD detection at 260 nm, printed beside a purity specification of greater than 98%. The measured net content is printed beside the labelled quantity of the vial, and identity is confirmed by LC-MS.
Each vial size we have had tested was tested as its own sample and has its own report. For a walk through each part of a report, see How to Read a Certificate of Analysis.
How this site shows testing
- A purity figure appears only where a published report states one for the vial size shown, and it is the figure printed on that report.
- Products covered only by an identity screen show no purity figure.
- A product page links the report for the vial size selected. Where the only published report is for a different size, the page says so rather than presenting it as this one's.
- A product with no published report says so, and carries no purity or COA badge.
Why a purity figure and an identity result are different things is explained in Purity & Third-Party Testing, Explained.
Checking a report yourself
- Match the product name and the labelled quantity to the vial you are looking at.
- Match the batch number on the report to the one on the vial.
- Note the certified date: a report describes the sample as of that date.
- Enter the report number and access code at koveralabs.com/verify.
What the reports do not cover
None of the reports we have published tests for sterility, endotoxins, residual solvents, heavy metals or water content. A report that does not include a test says nothing either way about it. A report describes the batch and vial size it names, not any other.
Where to find them
Every published report is in the COA Library, searchable by product and batch number, and each product page lists its own reports. Products without a published report say so on their page.