Returns and refund policy
Last updated: April 20, 2026
Final sales
All sales are final. We offer products for research and use under applicable regulations. You accept these terms when you complete a purchase.
No returns or return shipments
We do not accept merchandise returns. Do not return products unless we instruct you to do so in writing. We may not process unsolicited shipments.
Issues and questions
If you have a problem with your order, a shipping error, or another issue, contact us before taking further action. Email info@casadepeptidos.com and we will work to resolve it.