Shipping, Billing, and Returns

All items ship in plain brown boxes with a discreet name on the return address. To protect your privacy, there are no labels of any kind indicating what the box contains.

All orders bill as Probitas LLC on your credit or debit card statement. Nothing on the statement references the products ordered.

The exact descriptor may vary slightly depending on which payment processor handles your transaction.

Orders containing reagent testing kits ship via UPS.

Orders containing only fentanyl test strips or other non-reagent items may ship via USPS.

UPS does not deliver to P.O. boxes, but you can have your order sent to a UPS Access Point instead — there are thousands of locations across the U.S.

• Enter the Access Point address as your shipping address at checkout.
• Add a note in the customer notes field letting us know it is an Access Point.
• Some locations charge a small pickup fee.
• You will need to present an ID matching the name on the package.

We recommend using a UPS Access Point rather than a dorm address.

• Enter the Access Point address as your shipping address at checkout.
• Add a note in the customer notes field letting us know it is an Access Point.
• Some locations charge a small pickup fee.
• You will need to present an ID matching the name on the package.

UPS orders placed before 1 PM CST ship the same day. Orders placed after 1 PM CST are fulfilled the next business day.

No. We do not ship on Saturday or Sunday, and there is no weekend delivery.

Please allow up to 7 business days for delivery. In practice, roughly 95% of orders arrive within 3–5 business days.

Yes. 2nd Day Air and Next Day Air are both available at checkout.

Next Day Air is our only guaranteed method. All other service levels are estimates rather than guarantees.

If you need your order to arrive by a specific Friday, place it early in the week and contact us to confirm the cutoff for your destination.

We cannot ship to the following destinations:

Brazil, China, Colombia, Germany, Hong Kong, Israel, Malaysia, Mexico, Portugal, Russia, Singapore, South Africa, Spain, Taiwan, Thailand, United Arab Emirates, Vietnam

International USPS orders are not eligible for a refund if undelivered.

Packages refused or held by customs are not eligible for a refund.

The customer does. We have done our best to keep duties and fees as low as possible, but we do not collect customs duties or taxes at checkout.

Any duties or fees must be paid directly to the carrier before your package will be released.

We accept all major credit cards, processed securely through Authorize.net. We also accept bitcoin.

Bitcoin checkout is available for privacy-focused customers — contact us for more options.

Because of the nature of these products, we are unable to accept returns.

For qualified wholesale orders, eligible returns may be accepted subject to a restocking fee.

We are unable to accept exchanges, again due to the nature of these products.

Submit photo evidence within 3 business days of delivery using our contact form. In most cases we will send a replacement right away.

Before contacting us, please:

• Confirm the shipping address on your order is correct.
• Check with neighbors, your building’s front desk, and any alternate delivery spots.
• Wait 24–48 hours — packages marked delivered very often turn up in that window.

If it still hasn’t arrived after 48 hours, reach out through our contact form and we will help track it down.

Refund eligibility depends on the service selected:

• USPS: no refunds are issued for delays.
• UPS: only Next Day Air is eligible for a delay refund.
• Weather delays are excluded from all refunds.

Lincoln, Nebraska. Orders ship from ZIP code 68521 — use this as the origin for shipping estimates.

Use the contact form on our site and a member of our team will get back to you.