4.7 C
Saturday, March 2, 2024

Tip: How to Stop Your FreeStyle Libre Sensor From Falling Off Before the 14-day Expiry?

Tips to have your Libre and Libre 2 Survive 14 Days

Here are 8 tips I have been using to help stop my Libre Glucose Sensor from falling or being knocked off of the back of your arm since 2018.

DISCLAIMER: I have included links to my Amazon Store where you can purchase many of the items suggested. Looking for accessories for your FreeStyle Libre – look here.

Tip 1: Hair is our enemy, start with a blank slate and shave any hairs

Hair gets in-between the skin & sensor adhesive. This is where your wives or girlfriends can get a bit of pleasure and help remove the hair from a small area on your arm to ensure the Libre or Freestyle Libre 2 Sensor has skin-to-skin contact.

Good clean, dry, skin to skin contact is critical. Bring out the hot wax! LOL, however, a razer works just as well.

Tip 2: Ensure the Libre sensor area is clean and dry

The FreeStyle Libre, Libre 14-day, and Libre 2 work best when the skin is clean, dry, and oil and sweat-free by using the two supplied alcohol wipes. This includes removing any residue left over from your last Libre Sensor. The Lady btw sensor comes with two alcohol cleaning pads. Clean in a circular motion moving from the centre of your Libre area outwards. Be sure to use both alcohol pads and let the area dry completely before proceeding.

If you use Skin-Tac or similar products, you can also try  – this unique formula effectively removes even the most stubborn adhesive residue leaving the skin clean, dry, and without a greasy film.

Tip 3: Pre-treat the Libre Sensor area with Skin Tac or similar

If you are finding that your Libre or Libre 2 sensor is not sticking well or causing some skin irritation pre-treat the skin with Skin Tac Adhesive Barrier Wipes  barrier prep wipes to improve the adhesion of the Libre sensor to your arm.

Skin Tac Adhesive Barrier Prep Wipes has two main uses:

  • They provide a tacky surface for you to easily fix any dressings or tapes to (or our Libre), and
  • They provide an effective barrier between your skin and those dressings that may be causing irritation.

Tip 4: Smooth the edges around yours Libre with a Blunt Object

After you have applied your FreeStyle Libre, press around the edges of the Libre adhesive with a blunt object such as the end of a spoon. This will help reduce the chances of an edge starting to lift.

I also keep the applicator for the two weeks. This fits nicely around the Libre and can be used to help push down the edges of the adhesive ever few days.

Special thanks to Nerdabetic for this great tip.

Tip 5: Wait one hour before getting you Libre Sensor wet

To give the adhesive the best chance of success – try to wait at least one hour after applying a new sensor before you get it wet. Getting the sensors wet could be as simple as having a shower or going for a swim.

This also includes exercise — let’s keep sweat away from our sensors for at least an hour. Similarly, I do not put on my sensor immediately after my shower. I give my skin a half hour to an hour to dry before I put on a new sensor.

Tip 6: Pay attention to lifting edges of your Libre adhesive

Watch the edges around your FreeStyle Libre for loose adhesive. Add kinesiology tape or a patch to help it last the remainder of your 14 days.
Watch the edges around your FreeStyle Libre for loose adhesive. Add kinesiology tape or a patch to help it last the remainder of your 14 days.

You may notice that although your Libre or Libre 2 is securely attached, there may be some minor lifting around the edges of your Libre Sensor. These little edge lifts are usually the culprit of people ”losing” a sensor early, as it is much easier for a shirt sleeve or oddly positioned door frame to get under that loose edge and OUCH – you pop it off.

It is critical that you pay attention to lifting edges of your FreeStyle Libre or Libre 2 sensor over the entire 14-day period.

At this point (usually around day ten), I occasionally need to add a protective barrier over top of my Libre sensor. (Tip 7)

Tip 7: Protect your Libre – give it a helping hand with tape

Let’s admit it, we catch, bang, or shower our Libre sensors daily. Even the best products need TLC to last 14 days and not fall off. Pay attention to your Libre and Libre 2 sensors and in particular, the edges of the adhesive (Step 6) – I firmly believe this is our responsibility as Libre users.

What to do if your Libre sensor starts to come loose or the edges around the sensor start to lift?

I typically go the simple approach and use a small piece of Kinesiology (i.e. KT Tape ) over my sensor. However, there are other products available such as Patchabetes , RockDex, or SimPatch  which are designed to cover the Libre and Libre 2 sensor with a protective bandage.

I have also heard other FreeStyle Libre users have had great success with Tegaderm  which is a transparent waterproof adhesive wound dressing; similar to what you would have over-top of an IV.

For those that choose the kinesiology tape — I recommend rounding off the edges. This will significantly increase the length of time it sticks. Secondly, trim off any loose edges as they start to come loose.

Warning: Be cautious not to pull on your Libre when removing any patch or tape!

My biggest concern with any of these products is that they adhere to both your arm and the sensor. Fortunately, I rarely need to remove the bandage from the sensor as they have lasted the remainder of my 14-day sensor lifespan. For that reason alone I would never put a patch on day one. I find my Libre stick well for the first 7-10 days before the edges start to lift up. I then throw a patch or tape over-top for the last few days to more protect that one little cover where we undoubtedly will get a shirt sleeve or door frame caught underneath.

If you do need to remove the patch or tape before your sensor has expired – I have found that slow and steady wins the race. Be sure not to tug or pull on the sensor.

Hint: Try placing a small piece of gauze between the patch and the Libre or Libre 2 sensor. This should help with reducing the amount of stick to the Libre and assist when changing the patch before your sensor is due to be replaced

No matter what you choose, the key is to help keep the edges of the Libre sensor secure and protected.

Tip 8: Keep the applicator, use it to press the edges of the adhesive back down

Keeping the applicator between new sensors. For starters, I reposition it overtop of the Libre. It does a great job to press down lifting edges of the adhesive. Warning though, do this with caution and care as you do not want to accidentally know the sensor lose.

Have I been successful with these tips? I will let you decide, however, I have been using Freestyle Libre Glucose system for 4 years and have only had an issue with one sensor that accidentally got caught in my shirt as I was taking it off, one Libre that was knocked off wrestling with my son, and a third in a hot tub (although I feel it was coincidence).

Contact Abbott Diabetes Care for a Warranty Replacememnt

Contact your local Abbott Customer Service Centre if your FreeStyle Libre, Libre 14-day, or Libre 2 sensor for any of the following reasons:

  • Your Sensor is routinely off by more than 20% when compared to a blood glucose test. Remember, you need to test your blood and then your Libre with a scan 5 to 10 minutes later to accommodate the lag between interstitial fluids and blood glucose.
  • You are getting errors when trying to read your sensor. If you have a second device, ie a phone, or the Libre Reader. Test both to help determine if it is the sensor or your reader device that is acting up.
  • You knocked off your sensor
  • Your sensor fell off

The FreeStyle Libre representative will discuss and let you know what replacement options, if any, are available to you.

Here are the local contact numbers for Libre Customer Service / Support:

  • Canada: 1-888-205-8296
  • USA: 1-855-632-8658 (available 7 days a week 8 AM to 8 PM Eastern Time; excluding Holidays)
  • United Kingdom: 0800 170 1177 (Monday to Friday between 8:00 AM and 8:00 PM, Saturday 9:00 AM to 5:00 PM (excluding Bank Holidays) or ONLINE (Click here)

Other FreeStyle Libre Resources

This is just one set of helpful tips from one Libre user to another. Be sure to check out a few resources that may be helpful to you and your body type. Here are a few places to start:

  • Accessories, Cases, Patches and More for the FreeStyle Libre – A list of helpful accessories for your FreeStyle Libre and Libre 2 scanner and sensor. Patches, cases, stickers and adhesive patches and guides to help your Libre last the 14 days in style.
  • Abbott FreeStyle Libre Sensor Adhesion Guide – a few very general tips from Abbott themselves to help keep the Freestyle Libre lasting the 10 to 14 days
  • Freestyle Libre | Official Learning videos and Tips – Abbott, the makers of the Freestyle Libre diabetes glucose monitoring system, has released a series of education and learning videos to help us get the most out of our continuous glucose monitoring system (CGM).

Closing Remarks

These steps may not work for everyone as our skin is different. However, as I opened – using these seven tricks, I have never lost a Libre sensor. The one and only sensors I hav lost were to human error as I skipped step 6 as I knew or didn’t check if my sensor edge was pulling loose.

Send me your Freestyle Libre hints and tips!

I would love to hear any other hints or tricks from people. If you are a marketer, please do not provide comments, however, feel free to drop me a message on our contact page.

For convenience, I have these items and a few other options listed in our Amazon Store and our accessories for the freestyle Libre page – free two-day delivery, movies, books, music, and more with Amazon Prime.

Mark Hanlon
Mark Hanlonhttps://www.makingyouthink.ca
Mark Hanlon writes about his successes in life balancing fatherhood, running and cycling, and chronic illness (diabetes and Crohns). As an insulin-dependent Type 2 Diabetic and Crohns warrior, Mark does not look at his chronic illnesses as a disability but as motivation to challenge his body and his mind to find that next personal success. Enjoy Mark on his journey at are we "Making you think?".


  1. For folks having trouble with keeping their sensors on: After lots of trial and error I’ve had good luck with Kovoq sensor covers (Amazon). It comes with a little plastic cover to put over the sensor before applying the patch. I’ve found that the cover offers a bit of added protection from knocks and also makes it easier to change the patch without disturbing the sensor. I swim daily and patches rarely last the full two weeks.

  2. Thanks for your input! I only really have problems in the summer, when working in a plastics factory is ridiculously hot and you’re completely soaked in sweat for 8 hours. I’m gonna try shaving the area and using Skin Tac adhesive.

  3. Hi! Concerning taping the sensor on, Abbott tells you to not cover the hole on top of the sensor. Any thoughts or experience with this?

    • Great question – much like you, I am simply a user of the Libre, so can’t provide official advice. That being said, I cover the hole.

      I use kinesiology tape which is breathable, so don’t see the concern. Similarly, the same could be said for Tegaderm. I have always looked at hole as where the needle needed to poke through and nothing more. I admit, I have tried using a single hole punch – to make a hole through my cover when I first started using the system (maybe that is a bit OCD needing symmetry) – but almost 3 years in, the hole is non-existent and honestly, I may use a patch / cover 2 out of 10 sensors. Albeit, this current sensor (7 days in) is lifting off of the adhesive so it may need some help in a few days.

      That being said, officially Abbott recommends not covering the hole. According to their FAQ:

      Q: Why shouldn’t I cover the opening/hole in the center of the sensor with an over-bandage?

      Blocking the small hole in the middle of the sensor’s upper surface with an over-bandage may cause moisture to be trapped within the sensor. This could affect the ability of the adhesive to adhere to the skin. Clothing is fine to cover the sensor’s hole as it does not block moisture from evaporating.

      However, there isn’t any reference to not covering the hole in the official “Abbott adhesion guide” – see link below.

      Ultimately, Libre is a medical device and we all need to make our own choices on when we are comfortable deviating from the Abbotta recommendations.



  4. I have had 3 sensors come off since I started using them earlier this year and have had 2 replaced. I think the edges should have a plate like edge so harder to catch on things. By the time you notice it loose it’s too late. Needs to be redesigned

    • Hi Bill … much like you I am just a user of the Libre sensor and do not have any control over the device itself. However, I love your idea. A softer edge that things would just slide off over get caught on would be a great idea. Sadly, I am sure that would make the install apparatus a bit of a challenge.

      I check my sensor daily for lifting edges and even more so if it’s been banged or caught. In almost three years I have officially lost three – one play fighting with my little guy, once rolling up my sleeve to get my blood pressure checked, and once in a hot tub.

      I credit my success to following the steps I listed on the page, especially the pre-cleaning, and mindfulness of loose edges. I use KT tape (https://amzn.to/376ZhpK) as my backup when things are looking dodgy.

    • Hi Brenda! It is my understanding that as of March 2021, the Phone app for Libre 2 is still not available in the US. As Libre is considered a medical device, both the sensor and any applications are required to be approved by the FDA.

      Keep your ears posted.

Leave a Reply