Frequently Asked Questions

All NexaPep products are sold strictly for in-vitro laboratory and scientific research. They are not intended for human or animal consumption, diagnostics, or therapeutic use of any kind.

Yes. Every batch undergoes independent third-party analysis for identity, purity, and concentration. A Certificate of Analysis (COA) is made available for each product lot.

Our research peptides are synthesized to a minimum of 99% purity as verified by HPLC and mass spectrometry. Exact values are published on each product's COA.

Lyophilized peptides are shipped in temperature-protected packaging. For long-term stability we recommend storing unreconstituted vials at -20°C, away from light.

Lyophilized peptides require reconstitution before laboratory use. We offer sterile bacteriostatic water (0.9% benzyl alcohol) as a research supply for this purpose.

Orders placed before 2 PM EST on business days are typically processed same-day. Domestic delivery generally arrives within 2-4 business days with tracking provided.

Due to the sensitive nature of research materials, unopened products may be returned within 14 days. Opened or reconstituted vials are non-returnable for integrity reasons.

Purchases are restricted to qualified researchers, institutions, and individuals 21 years or older who acknowledge the research-only terms of use.