Continuous Glucose Monitor

FreeStyle Libre 3

• 90/100 science score
• $75 price

Overview

Effectiveness strong due to class-leading MARD 7.9% validated in multiple accuracy studies (e.g., PMID:36877403 RCT across 14-day wear) meeting FDA criteria, enabling real-time monitoring for ages 4+ without calibration. Safety tempered by recent recall/malfunctions causing hypo risks (860 injuries/7 deaths reported to FDA), adhesive reactions, and interferences despite biocompatibility testing. Quality solid via FDA clearance/CE but lacks supplement-style third-party purity certs/COA transparen

Key strengths

• Smallest/thinnest CGM sensor (smaller than 2 pennies)
• MARD 7.9% - highest accuracy for 14-day CGM in pivotal study (FDA-cleared)
• No fingerstick calibration required; real-time alarms for ages 4+

Our analysis

FreeStyle Libre 3 offers top-tier accuracy (MARD 7.9% per pivotal RCT) and discreet design as FDA-cleared CGM for ages 4+. However, ongoing recall for manufacturing defects causing falsely low readings (860 injuries/7 deaths) warrants caution with lot checks. Solid for routine monitoring absent interferences.

Frequently asked questions

Is FreeStyle Libre 3 worth buying?

FreeStyle Libre 3 has a Verify Influencers trust score of 90/100 based on ingredient quality, clinical evidence, and third-party testing.

What is the trust score for FreeStyle Libre 3?

FreeStyle Libre 3 scored 90 out of 100 in our science-backed analysis, which evaluates ingredient dosages against clinical literature and manufacturing transparency.

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