While selling test strips is generally legal in the U.S., there are critical exceptions: The Strange Marketplace for Diabetes Test Strips

To be eligible for sale, test strips must generally meet these strict criteria:

The "we buy test strips" industry operates as a gray market. Professional resale companies purchase unopened, unexpired boxes from individuals and redistribute them at a discount to uninsured or underinsured patients who cannot afford high retail prices.

Boxes must be unopened and the original seals must be intact.

High-demand brands like OneTouch , Accu-Chek , and FreeStyle often command the best prices, ranging from $10 to $50 per box . Legality and Restrictions