Wearing a FreeStyle Libre sensor allows you to monitor your glucose without constant finger pricks, but like any medical device, it requires certain care. If you want to know how to protect the FreeStyle Libre sensor correctly and effectively, keep reading. Here you will find all the useful and updated information to achieve this.
In this article, we explain the best strategies and products to keep your sensor safe, comfortable, and functioning properly throughout its useful life.
What is the FreeStyle Libre sensor and what is it used for?
The FreeStyle Libre sensor is a continuous glucose monitoring (CGM) device that is placed on the back of the arm. This device constantly measures glucose levels in the interstitial fluid and transmits the data to your mobile phone via the FreeStyle LibreLink app. The sensor works for up to 14 or 15 days depending on the model, and allows real-time tracking of glucose levels.
It is a very useful tool for people with type 1 and type 2 diabetes, as it eliminates the need for frequent finger pricks. Additionally, it offers smart alarms, automatic readings, and is compatible with apps like LibreView or LibreLinkUp. This technology has transformed the lives of many people with diabetes, allowing them to live with greater freedom and security.
Why you should protect your FreeStyle sensor
Although the FreeStyle Libre sensor is designed to be durable, there are many everyday factors that can put it at risk:
-
Premature detachment due to sweat, friction, or sudden movements.
-
Loss of adhesion after showers, swimming, or sports activities.
-
Accidental bumps during sleep or while dressing.
-
Hot or humid environments that affect the adhesive.
-
Tight clothing or abrasive materials that cause friction.

Tips to protect the FreeStyle Libre sensor
If you want to know how to properly protect the FreeStyle Libre sensor, the key is to use additional accessories that improve its attachment and reduce the risk of damage or falls. Below, we share some tips drawn from user experience and Abbott's official recommendations:
Prepare the skin well before applying it
Proper skin preparation ensures better adhesive adherence and reduces the risk of detachment. Before placing the sensor on your arm, it is recommended to:
-
Clean the area well with alcohol and let it dry completely.
-
Avoid creams, lotions, or oils that hinder adhesion.
-
Shave the area if there is abundant hair that makes attachment difficult.
Avoid areas with a lot of friction
Although the sensor is designed to be placed on the back of the arm, make sure to place it in an area where it does not rub against clothing seams or backpack straps. This will prevent it from accidentally coming off.
Use protective patches
One of the best tips on how to protect the FreeStyle Libre sensor is to use hypoallergenic adhesive patches. These patches are placed over the sensor and help to:
-
Increase adhesion.
-
They protect against sweat or water.
-
Avoid accidental snags with clothing or accessories.
-
Reduce irritation on sensitive skin.
Protect it during sleep or when you practice sports
For those who exercise regularly or move a lot while sleeping, it is recommended:
-
Use securing armbands.
-
Cover the sensor with tight but comfortable clothing.
-
Avoid clothing with abrasive fabrics.
-
Wear compression shirts if you do contact sports.
Wait before getting it wet
Although the sensor is water-resistant, it is advisable to wait at least an hour after placing it before showering or swimming. This allows the adhesive to set properly. Don’t forget to dry it with a soft towel after contact with water.
Be careful when changing clothes
When changing, be careful not to accidentally pull the sensor. Avoid the sensor catching on sleeves, bras, straps, or backpacks.

Protective patches: The best way to protect your sensor
Without a doubt, one of the best ways to protect your diabetic patch is with protective patches. At Glucody, we specialize in protecting the FreeStyle Libre sensor, and our patches are designed to offer the highest possible security and comfort.
Our sensor patches are made with water- and sweat-resistant materials, are hypoallergenic, breathable, easy to apply, and very durable. Additionally, we have fun designs for children, discreet models for adults, and colors for every taste.
Advantages of our patches
Among the many advantages you have probably already deduced, our protective patches:
-
They do not irritate the skin.
-
They protect the sensor during the 14 or 15 days it lasts.
-
They leave no residue when removed.
-
They allow you to move freely.
-
They are compatible with all FreeStyle Libre models.
-
They help to conceal the sensor for greater discretion.
If you really want to know how to protect the FreeStyle Libre sensor, these patches are your best option.
Other useful Glucody solutions to protect your sensor
Besides patches, at Glucody you will also find:
Silicone covers for readers
They protect your FreeStyle Libre reader against bumps, scratches, and accidental drops. They are available in various colors and soft-touch materials.
Armbands for children and adults
These armbands keep the sensor in place and provide an extra layer of protection without discomfort. They are ideal for those with very sensitive skin or who lead an active lifestyle.
Medical adhesive tapes
Medical adhesive tapes are a useful alternative if you need extra reinforcement. You can place them around the sensor or over the edges of the patch for better fixation.
Live a peaceful life with Glucody protective patches
Using a protector to protect the FreeStyle Libre sensor not only extends its lifespan, it also improves your daily experience and prevents interruptions in your glucose monitoring.
Don't let a wrong move or a bit of sweat ruin the effectiveness of the sensor. You already know how to protect the FreeStyle Libre sensor, now you just need to choose the ideal product for you.
Visit our website and find the best protection for your FreeStyle sensor!