Chemical Analysis

Certificates of Quality Analysis

For full transparency, we provide access to all Certificates of Analysis (COA). Each customer can view the certificate issued by Janoshik for the respective product directly on its product page. This way, we guarantee trust and security with every order. All our products are tested and analyzed in the Czech laboratory Janoshik.

Quality Control with LC-MS and HPLC

In our work, quality is a top priority. All PurePeptide products undergo strict analytical control using HPLC and LC-MS (liquid chromatography – mass spectrometry). LC-MS is the gold standard in laboratory practice and allows for highly accurate confirmation of peptide purity and composition. This way, we guarantee that you receive a product of reliable quality with confirmed purity ≥98%.

Why don't we offer ready-made solutions?

We offer our peptides in lyophilized (dehydrated) form - this is the most stable form for storage and transport. For ready-made solutions, the shelf life is limited to about 4 weeks with refrigerated transport. Lyophilization preserves the structure and activity of the peptide for up to 2 years under refrigerated conditions, without the need for preservatives.

Additional Stability Control

To ensure reliability and a real assessment of quality, our peptides also undergo stability tests. Products are kept at room temperature for several weeks before testing to simulate the conditions under which customers would receive them. This way, we ensure that each batch retains its purity and properties not only under laboratory conditions but also in real-world situations.

Advantages for Researchers and Laboratories

Through the combination of strict purity control via LC-MS, tests performed by the most respected peptide laboratory, and lyophilized delivery form, our products provide maximum reliability and convenience for researchers who value precision and stability in their work.