Zellner Peptides is a 100% veteran-owned brand operated by Zellner Bio Sciences. It offers peptide products for laboratory and in vitro research, along with a research catalog and member resources accessible through its website. The company also provides a Research Learning Center, a quality assurance page, and an affiliate program. Its products are strictly intended for laboratory research and are not for human or animal consumption, diagnosis, or therapeutic use.

Zellner Peptides offers free shipping on orders over $250. The company states that peptide orders are not refundable because of the nature of research compounds. Customers are asked to report damaged vials with photo documentation within 48 hours of delivery. Website visitors can create or access a member profile, browse research information, and review policies covering shipping, returns, privacy, and terms of service. Zellner Peptides can be contacted by phone or email for assistance. The site also provides a researcher affidavit and disclaimers outlining the intended use and limitations of its products.