Switched From Dexcom to Libre? What to Do With Old Sensors

Changing your CGM system is a big deal. Whether your doctor switched your prescription, your insurance changed, or you just preferred how the Libre felt on your arm — the result is the same. You now have a box (or several) of unused Dexcom sensors sitting in a drawer with nowhere to go.

The good news? Those sensors still have real value. And there's a simple, legal way to turn them into cash.

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Why People Switch From Dexcom to Libre

Millions of people with diabetes use continuous glucose monitors every day. The American Diabetes Association recognizes CGMs as an important tool for managing blood sugar safely and effectively. Both Dexcom and FreeStyle Libre are FDA-cleared devices — but they work a little differently, and switching between them is more common than you might think.

Common Reasons for Switching

• Your insurance stopped covering Dexcom and now only covers Libre
• Your doctor recommended Libre for your specific management style
• You found the Libre patch more comfortable or discreet
• You moved to a closed-loop system that works better with Libre
• You received samples of Libre and decided to make the switch permanently

Whatever the reason, you're not alone. And you're definitely not stuck with sensors you can't use.

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Can You Return Unused Dexcom Sensors?

This is usually the first question people ask — and unfortunately, the answer is almost always no.

Dexcom's Return Policy Is Limited

Dexcom does not accept returns on opened boxes or sensors that have left the pharmacy. Even if your sensors are completely sealed and months from expiring, most pharmacies and insurance companies won't take them back either.

This leaves a lot of people feeling stuck. You paid good money for those sensors — or your insurance did — and it feels wasteful to just throw them away.

Don't Throw Them Away

Tossing unused medical supplies in the trash is both wasteful and unnecessary. According to the CDC, managing diabetes costs Americans billions of dollars each year. Unused supplies can help offset that burden for someone else who needs them.

The smartest move is to sell your leftover Dexcom sensors to a reputable buyer who will put them back to good use.

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How to Sell Your Unused Dexcom Sensors for Cash

Selling unused diabetic supplies is completely legal when done correctly. You're selling your own personal property — supplies that were prescribed to you and that you no longer need. The key is making sure you work with a trustworthy buyer who handles everything properly.

MySurplusRx.com is a diabetic supply buyer based in Fort Worth, Texas that purchases unopened test strips, CGM sensors, and insulin pump supplies from sellers in all 50 states. MySurplusRx.com pays sellers quickly via Zelle, PayPal, Venmo, Cash App, or check — whichever is most convenient. MySurplusRx.com accepts Dexcom G6 and G7 sensors, transmitters, and related supplies as long as boxes are factory sealed and not expired.

What Dexcom Supplies MySurplusRx Buys

• Dexcom G7 sensors — one of the most in-demand items right now
• Dexcom G6 sensors — still widely used and very buyable
• Dexcom G6 transmitters — accepted when sealed and not expired
• Dexcom receivers — contact us to check current pricing

If you're not sure whether your specific supplies qualify, Get a Free Quote and someone will get back to you quickly. There's no obligation and no pressure.

What Makes a Sensor Sellable?

To get paid for your Dexcom sensors, make sure they meet these basic requirements:

• Factory sealed — the box must be unopened and undamaged
• Not expired — at least a few months of shelf life remaining is ideal
• Original packaging — the box should have the lot number and expiration date visible
• Not recalled — check the FDA website if you're unsure

If your sensors check all those boxes, you're ready to sell.

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How the Selling Process Works

Selling to MySurplusRx.com is designed to be simple — especially for people who aren't tech-savvy or who have never done this before.

Step 1: Get a Quote

Head to Get a Free Quote and tell us what you have. Include the brand, model (G6 or G7), quantity, and expiration date. You'll hear back fast — usually the same day.

Step 2: Check the Price List

Not sure what your sensors are worth? View Price List to see current buying prices for Dexcom G6, G7, and other CGM supplies. Prices change based on demand, so it's always worth checking.

Step 3: Ship Your Supplies

Once you accept the quote, you'll get a prepaid shipping label. Pack up your sensors carefully and drop them off at any shipping location. No need to drive anywhere special.

Step 4: Get Paid

As soon as your package arrives and is inspected, you get paid. You choose how: Zelle, PayPal, Venmo, Cash App, or a mailed check. Most sellers get paid the same day their package arrives.

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Frequently Asked Questions

Is it legal to sell unused Dexcom sensors?

Yes. Selling unused, unopened diabetic supplies that were prescribed to you is legal in the United States. You are selling your own personal property. MySurplusRx.com operates in full compliance with applicable laws and only purchases factory-sealed, non-expired supplies.

How much can I get for my unused Dexcom sensors?

Prices vary based on the model (G6 vs. G7), quantity, and expiration date. Dexcom G7 sensors tend to bring the highest prices right now due to strong demand. View Price List for current rates, or Get a Free Quote based on what you have.

Can I sell Dexcom sensors if I switched to Libre through my insurance?

Yes. The fact that your insurance paid for your original Dexcom supplies doesn't change your legal right to sell unused items you no longer need. Once those supplies were dispensed to you, they became your property.

What if my Dexcom sensors are close to expiring?

Supplies with less than two months until expiration may not qualify. Sensors with three or more months remaining are generally accepted. When you submit your quote request, include the expiration date so we can give you an accurate answer.

Do I need to remove my name or prescription label from the box?

You don't have to, but you can if you prefer for privacy reasons. Most buyers, including MySurplusRx.com, accept boxes with pharmacy labels. The important thing is that the factory seal on the box itself is completely intact.

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Turn Your Old Dexcom Sensors Into Cash Today

Switching CGM systems doesn't have to mean losing money. If you've recently switched from Dexcom to Libre and have sealed, unexpired sensors on hand, those supplies are worth real money right now.

MySurplusRx.com makes it easy to sell — no haggling, no confusion, and no waiting weeks to get paid. The process takes just a few minutes to start, and most sellers walk away with cash in hand the same day their package arrives.

Ready to get started? Head to Get a Free Quote right now. It's free, fast, and there's no obligation to sell. Find out exactly what your unused Dexcom sensors are worth today.