Quality focused, Mission driven. At Mission Peptides, we stand behind the integrity of our lyophilized materials.

1. Order Cancellations

Orders can be canceled for a full refund as long as the shipping label has not yet been generated. Once an order has been processed for logistics, cancellations are no longer possible.

2. Returns and Exchanges

Due to the highly sensitive nature of lyophilized peptides and the requirement for strict temperature-controlled storage (such as -20°C for long-term stability), we do not accept returns. * Once a product has left our facility, we can no longer guarantee its structural integrity for future researchers.

• This policy ensures that every vial you receive is fresh, unhandled, and meets our clinical purity standards.

3. Damaged or Incorrect Items

If your order arrives damaged (e.g., broken glass vials) or if you received the incorrect item:

• Please contact us within 48 hours of delivery.
• Provide high-resolution photos of the damaged packaging and the product labels.
• We will expedite a replacement at no additional cost to you or issue a store credit.

4. Shipping Issues

We utilize reliable logistics partners to ensure your materials arrive safely. If a package is marked as “Delivered” but is missing, please contact the carrier directly. Mission Peptides is not responsible for lost or stolen packages once delivery is confirmed by the carrier.

5. Reconstitution and Testing

We do not offer refunds based on research outcomes or “subjective” results. We provide HPLC/MS verified purity reports to guarantee the chemical sequence and concentration. If you believe a product is significantly under-dosed or impure, please provide a third-party laboratory analysis for our review.