Everything you need to know about The FreeStyle Libre system

Difference between Blood Glucose Monitoring and Flash Glucose Monitoring

Finger prick blood glucose readings and the sensor glucose reading won't always match and in fact are likely to be different.

That's because the sensor glucose readings come from the interstitial fluid (ISF), a thin layer of fluid that surrounds the cells of the tissues below your skin, not from your blood.

There is a 5 to 10 minute delay in ISF glucose response to changes in blood glucose. Glucose readings on ISF have been proven to reliably reflect glucose levels1.


What does “no calibration” mean?

Calibration is a process that matches the glucose readings from the sensor with a standard reference to ensure the devices are accurate.

The FreeStyle Libre sensor is factory calibrated and manufactured with minimal sensor-to-sensor variation eliminating need for finger prick calibration.


Flash Glucose Monitoring in pregnancy

The FreeStyle Libre system is approved to be used for glucose monitoring in pregnant women1.

Abbott FreeStyle Libre - Getting started

FreeStyle Libre and your children

The FreeStyle Libre system is approved for 4 years and above.

97% of users, ages 4-12^, say the FreeStyle Libre system is easier to use than finger prick testing.8

Children undergo finger-prick tests on average 6 times a day and dislike it for many reasons: hassle, pain and embarrassment1.

With the FreeStyle Libre system, parents or care givers can measure night time glucose levels without the need to wake them up^9.



Apply the sensor to the back of your upper arm with the applicator.


A painless one-second scan is all you need to see your glucose readings.

Read out

See your current glucose reading, eight hours of data, and a trend arrow that shows you where your glucose is heading.


1. Data on file: Abbott Diabetes Care Inc.

8. Edge, Julie, et al. An alternative sensor-based method for glucose monitoring in children and young people with diabetes. Archives of Disease in Childhood 102.6 (2017): 543-549.

9. A finger prick test using a blood glucose meter is required during times of rapidly changing glucose levels when interstitial fluid glucose levels may not accurately reflect blood glucose levels or if hypoglycaemia or impending hypoglycaemia is reported by the system or when symptoms do not match the system readings. For a complete glycaemic picture, scan once every 8 hours.

Images are for illustration purpose only.

^ For children aged 4-12, a caregiver at least 18 years old is responsible for supervising, managing, and assisting them in using the FreeStyle Libre system and interpreting its readings.

ADC-28471 v1.0 10/20

Cookie Policy

FreeStyle Libre uses cookies to give you the best website experience. By using our website, you consent to the use of cookies. More about our privacy policy