Shipping & Returns Policy
Last updated September 21, 2026
Processing
We confirm the expected dispatch date on your invoice before you pay, after any required customer, product, or address review. Delivery dates are estimates, not guarantees. Tracking is provided when available.
Shipping
We ship to eligible U.S. addresses only. For invoice orders, shipping and any eligible surcharge are shown on the invoice before payment. For card orders, shipping, tax and all fees are shown before the customer confirms payment.
Orders with an item subtotal over $300 qualify for free standard shipping. We do not sell or ship flammable, corrosive or toxic chemicals, so no hazardous-materials surcharge applies.
Temperature-sensitive items
Reagents that need refrigeration ship with cold packs, Monday to Wednesday, so they are not held in transit over a weekend.
Returns
To request a return, email support@peptideresearchtesting.com within 30 days of delivery with the order number, product, quantity, and reason. Do not ship a return until we issue return instructions.
Eligible refunds are issued to the original payment method within 10 business days after the returned item is received and inspected. Return shipping and the original shipping charge are the customer’s responsibility on customer-requested returns. We pay reasonable return shipping for damaged, defective, missing, or incorrect items.
Reagents, standards, culture media and opened consumables cannot be returned, because we cannot guarantee their integrity once they have left our control. This restriction is identified on the product page before payment and does not affect the remedy for damaged, defective, or incorrect goods.
Cancellation
Order requests may be canceled before acceptance. Accepted orders may be canceled before dispatch when operationally possible; email support@peptideresearchtesting.com immediately.
Damaged, missing or incorrect items
If your order arrives damaged, incomplete or incorrect, email support@peptideresearchtesting.com within 7 days of delivery with your order number and photos. We will send a replacement or refund the affected items.
Warranty claims
If an instrument develops a fault within the warranty period, contact us with the serial number and a description of the fault. We will arrange repair or replacement.