Dominus Peptide offers 2-Day Air shipping on all orders placed before our daily cutoff time. Every order includes free shipment protection and ships in discreet, unlabeled packaging. Lyophilized peptides do not require cold shipping — they are stable at room temperature for transport and short-term storage.

At this time, Dominus Peptide ships exclusively within the United States, including all 50 states. We do not currently offer international shipping. Check back as we continue to expand our fulfillment capabilities.

Dominus Peptide is a U.S.-based research compound supplier built on a foundation of quality, transparency, and scientific integrity. We source exclusively from GMP-compliant manufacturers, third-party test every batch via HPLC and mass spectrometry, and publish Certificates of Analysis on request.

All Dominus Peptide products are sold strictly for research, laboratory, and educational purposes only. They are not approved for human consumption, veterinary use, or any therapeutic application. By purchasing, you confirm you are a qualified researcher and will use all products in accordance with applicable laws and regulations.

Dominus Peptide stands behind the quality of every product we ship. Refunds or replacements are issued only for products that arrive damaged or if an incorrect item was sent. If your package arrives damaged, contact us within 24 hours of confirmed delivery with clear photos of the product, vial(s), and outer packaging so we can review your claim. For shipping issues such as lost, misdelivered, or stolen packages marked as delivered, resolution is handled through the carrier on a case-by-case basis. Due to the nature of research materials, all sales are final — we do not accept returns or issue refunds on opened or unopened products unless there is verified damage upon arrival or a confirmed fulfillment error on our part.

You can reach the Dominus Peptide support team via email at support@dominuspeptide.com. We typically respond within 24 hours on business days and are committed to resolving any questions or concerns as quickly as possible.