Use bacteriostatic water or sterile water, then inject it gently down the vial wall. Next, swirl slowly instead of shaking so you protect peptide integrity. Finally, choose a solvent volume that matches your target concentration.

Store unopened lyophilized vials in a cool, dry place and keep them away from light and moisture. For long-term storage, use refrigeration (2–8°C). For extended storage, freezing at -20°C often works best.

After reconstitution, keep the vial refrigerated and use it within a few weeks whenever possible. Because stability varies by peptide, treat storage guidance as general rather than absolute. If you need a batch-specific note, contact our support team via Contact.

Many researchers choose bacteriostatic water because it helps reduce contamination risk after multiple withdrawals. However, some protocols require sterile water or another solvent. Therefore, follow your method and review the product documentation for compatibility.

Do you provide Certificates of Analysis (COA)?

Yes. We provide a COA upon request, and we can include key analytical results such as HPLC and mass spectrometry. Consequently, you can document materials within your lab’s QA process. For help, use our contact form.

How do you measure peptide purity?

We primarily use HPLC to separate compounds and quantify purity. We also use mass spectrometry to confirm molecular identity. For background reading, visit the NCBI.

Do you test for endotoxins?

We run endotoxin testing using standard methods (such as LAL where applicable), and we document results where required. As a result, researchers can evaluate suitability for controlled laboratory workflows.