Shipping & Returns
Last updated: October 2, 2026
Where we ship
We ship to addresses in all 50 U.S. states and Washington, D.C. We do not ship internationally, or to U.S. territories or military (APO/FPO/DPO) addresses at this time. P.O. boxes can receive USPS shipments only.
Shipping costs
Free standard shipping on orders of $199 or more. The $199 is counted after any discount (a code or same-product savings), before shipping. Standard shipping is USPS Priority Mail.
Orders under $199 pay the carrier’s rate for the delivery option you choose. Faster options (UPS 2nd Day Air or Next Day Air) are available on any order at the carrier’s rate. The exact cost is always shown at checkout before you pay.
Processing and delivery
Orders are usually packed and shipped within 1 to 2 business days of payment. Business days are Monday to Friday, excluding U.S. federal holidays. Orders are shipped with USPS (standard) or UPS (faster options). Delivery times depend on the carrier and service you choose and are the carrier’s estimates, not guarantees.
When your order ships, we email you a tracking number. If we cannot ship an order within the time stated here, we will tell you by email, give you a new shipping date, and let you cancel for a full refund.
Address accuracy
Please check your shipping address at checkout. We are not responsible for delays or losses caused by an incorrect or incomplete address. If a package comes back to us because of an address error or a refused delivery, we will either ship it again once you pay the new shipping cost, or refund the price of the products (shipping costs are not refunded). We charge no restocking fee.
Damaged, incorrect or missing items
If your order arrives damaged, contains the wrong item, or is missing an item, email support@luminexresearchpeptides.com within 7 days of delivery with your order number and photos of the outer box, the shipping label, the packaging and the affected item. A wrong item must be kept unopened. Once we have confirmed the problem, we will send a replacement at no cost or refund the affected item, whichever you prefer. You do not need to send anything back unless we ask.
If tracking shows your package as delivered but you have not received it, please check with neighbors and anyone at the address, then contact us within 7 days of the delivery date. We will open an investigation with the carrier. If the carrier confirms the package was lost in transit, we will send a replacement at no cost or refund your order. If the carrier confirms delivery to the address you gave, we will help with the carrier’s claim process, but we cannot guarantee a replacement.
Returns
All sales are final once an order has shipped. Research compounds must be stored and handled correctly to stay within specification, and once a package has left us we cannot confirm how it was kept, so we cannot accept returns of any product, opened or unopened. This does not affect damaged, incorrect or missing items, which are always put right as described above.
Cancellations
You can cancel an order by emailing us before it ships, for a full refund. Once an order has shipped it cannot be cancelled.
Refunds
Approved refunds are issued to your original payment method within 5 business days. Your bank may take a few extra days to show the credit.