Shipping policy and fees We offer three straightforward options. Your exact total will be shown at checkout before payment is submitted. Free shipping. Orders over $200. Flat rate. USPS $15. Express. Based on USPS rates.
Important note Shipping timelines can be affected by weekends and holidays. Carrier processing schedules and regional delays may impact transit time. Weekends. Carrier movement may pause or slow depending on service level. Holidays. National holidays may extend handling or transit windows. Tracking. Updates may take time to appear after label creation.
Processing Orders are prepared for dispatch and packaged to support research workflows. Processing time may vary during high volume periods.
Tracking Once your order is handed to USPS, you will receive a confirmation with tracking details. Tracking events may appear with a short delay.
Delivery issues If a package is delayed, damaged, or missing, contact support with your order number. Include photos if the shipment arrived damaged.