How freestyle libre works

How freestyle libre works

The FreeStyle Libre sensor

FreeStyle Libre SensorFreeStyle Libre Sensor
  • Small & discreet
    Comfortable to wear.6
  • Painless application6
    Easy to apply with a thin filament just under the skin to measure interstitial fluid.
  • Accurate Sensor Readings
    Excellent accuracy overall, in low glucose range, and in paediatric patients.7
  • Water resistant12
    Designed for continuous wear for up to 14 days, suitable for use during exercise, swimming,12 and showering.
  • Continuous monitoring
    Measures glucose every minute and stores readings every 15 minutes.

Quality matters

Join over 5 million people who rely on the FreeStyle Libre System for their diabetes management.30

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Expertly manufactured

Produced, rigorously tested, and factory-calibrated for accuracy,31 sensors are ready to use right out of the box – no finger-prick calibration required.1

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Proven performance

Our sensors undergo extensive testing, from clinical trials to real world studies with people like you, showing FreeStyle Libre systems are accurate and reliable.

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Smart quality checks

Every minute you use it, the system performs frequent self-checks to ensure reliable readings. For your protection, only results that pass these checks are displayed by the sensor.

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Trusted data security

We’re deeply committed to protecting your privacy. We work to ensure the safety and confidentiality of the information you choose to share when using our products.

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

To know more about sensor application,
watch the video

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