Mission
Quality without compromise
Seattle Peptide Supply was founded to bring a premium, transparent standard to research peptide commerce. We believe buyers deserve clear documentation, careful fulfillment, and a shopping experience that feels as refined as the science behind the products.
From nationwide shipping to same-day delivery across Seattle, and from secure checkout to professional Zoom consultations, every touchpoint is designed to earn trust—and keep it.
FAQ
Direct answers.
Shipping, testing, consultations, and research-use clarity—without the runaround.
No. All products sold by Seattle Peptide Supply are intended strictly for laboratory and research use only. They are not FDA-approved for human consumption, diagnosis, treatment, or prevention of any disease.
Yes. Orders placed before 1:00 PM local time for Seattle metro ZIP codes are eligible for same-day delivery. You will see eligibility at checkout based on your shipping address.
Most U.S. orders ship within 1 business day via tracked carriers. Standard delivery is 2–5 business days depending on destination. Expedited options are available at checkout.
Unopened products in original packaging may be eligible for return within 14 days of delivery. Due to the nature of research materials, opened vials cannot be returned. Contact support to initiate a return authorization.
Browse the Shop, add products to your cart, and complete checkout with a secure payment method. Create an account to track orders, save wishlists, and access order history.