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How freestyle libre works

How freestyle libre works

The FreeStyle Libre sensor

FreeStyle Libre SensorFreeStyle Libre Sensor

Small and discreet6, comfortable to wear 

Painless6 application
Painless6 and easy to apply. A very thin filament sits just under the skin to measure interstitial fluid.

Factory Calibrated
FreeStyle Libre is the only factory-calibrated glucose monitoring system. No finger pricks1 calibration required and gives accurate data.

Accurate Sensor Readings
Excellent accuracy overall7, in low glucose range7, and in pediatric patients7

Water resistant so you can swim, exercise and shower12

Continuously provides a complete picture
Measures your glucose every 1 minute, and stores glucose readings every 15 minutes.

Wear for up to 14 days

How does the FreeStyle Libre system work?

FreeStyle Libre measures glucose
in interstitial fluid (ISF)

Blood glucose monitoring vs continuous glucose monitoring

Understand the lag between FreeStyle Libre (CGM) and BGM

  • Blood glucose monitoring (BGM) captures single moments in time
  • FreeStyle Libre helps you see your glucose levels over time

Abbreviations: A1c: glycated haemoglobin; T2D: type 2 diabetes.