Why people choose it
Continuous, minute-by-minute glucose readings via the FreeStyle LibreLink app or Libre 2 Plus reader
Up to 15 days of wear from a single small sensor worn on the back of the upper arm
Optional customisable high and low glucose alerts
Water-resistant for showering, bathing and swimming (up to 1m depth, 30 minutes)
No routine finger-prick calibration required
Comes with an alcohol wipe for skin preparation before application
How to take it
Clean the back of your upper arm with the alcohol wipe provided and allow it to dry. Use the supplied applicator to apply the sensor to the prepared skin, following the Instructions for Use step by step. Pair the sensor with the FreeStyle LibreLink app on a compatible smartphone, or scan it with a Libre 2 Plus reader. Allow the stated warm-up period (around 1 hour) before your first reading. The sensor can then be worn continuously for up to 15 days before it needs replacing. FreeStyle Libre 2 Plus is indicated for people aged 2 years and over; for children aged 2-12, an adult caregiver (18+) should apply the sensor, supervise use, and interpret glucose readings and alerts on the child's behalf. Always read the full Instructions for Use and app/reader user guide before first use.
Warnings
This is a medical device, always read the instructions/user manual before use. It is intended to support, not replace, guidance from your diabetes care team. In certain situations (for example rapidly changing glucose levels, dehydration, or if you're taking high-dose vitamin C or certain other medications), a finger-prick blood glucose test may be needed to confirm a reading follow the on-screen guidance in your app or reader. Do not make insulin dosing or other treatment decisions based solely on a sensor reading without following the specific guidance given by the device and your healthcare professional. Each sensor is for single-patient use only do not share sensors between users. Stop use and consult your pharmacist, GP, or diabetes care team if you notice skin irritation, unexpected readings, or symptoms that don't match your glucose values. This product may be available on NHS prescription for eligible patients check your eligibility with your GP or diabetes team.
Side effects
Skin irritation, redness, itching or, uncommonly, allergic contact dermatitis at the sensor/adhesive site - remove the sensor if significant irritation occurs. Minor bleeding or bruising at the insertion point can occur. Readings can be temporarily inaccurate in the first 12 hours or during rapid glucose changes.
Age restrictions
Indicated for use from age 2 upwards; a caregiver aged 18+ must supervise, manage and assist use for children aged 2-12.
Pregnancy and breastfeeding
Abbott states the FreeStyle Libre 2 system is cleared for use during pregnancy for people with Type 1, Type 2 or gestational diabetes. CGM use in pregnancy should be discussed with the supervising diabetes/antenatal team, as glucose targets differ.
Alcohol
Not a dietary restriction - use the alcohol wipe provided to disinfect the application site before fitting the sensor. Note that drinking alcohol can itself affect blood glucose levels, so readings should be interpreted with this in mind.
Driving and machinery
Per NHS/DVLA guidance, Group 1 drivers on insulin may use flash/continuous glucose monitors for driving, provided a blood glucose meter and test strips are also carried as backup and glucose is above 5.0 mmol/L before driving. Group 2 (bus/lorry) drivers must use finger-prick testing, not sensor readings, for driving decisions.
Storage
Store unused sensors at 4C-25C (39F-77F); do not freeze; keep in the original packaging until use.