Continuous. Noninvasive. Real-time. The world's first wearable hormone tracker designed for women, by women.
Reserve your spot to be among the first to experience the future of women's health.
HSA / FSA EligibleHormones aren't static
Understanding change requires continuity.
Clair is a wrist-worn device that tracks key reproductive hormones. Using advanced bio-sensing technology, it translates hormonal signals into clear, daily insights.
Including irregular cycles.
Designed to reliably identify ovulatory patterns.
Advanced biosignal inputs enhance interpretability and insight.
Clair supports your needs
From contraception to longevity, Clair supports women ages 18–50 with personalized health insights.
Align training, recovery, and daily activity with your cycle to optimize performance, manage energy, and reduce injury risk.
Clair helps you understand your cycle and timing with clear insights to support your fertility decisions.
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Identify hormonal patterns and changes across your cycle to better understand symptoms, balance, and overall wellbeing.
Understand how hormonal changes affect your body, energy, and sleep, with insights for perimenopause and menopause.
Features
One app. Complete hormone intelligence.
Accurate period, ovulation, and fertile window predictions powered by your data.
Optimize workouts and recovery by training in sync with your cycle phase.
Visualize your hormone levels throughout your cycle with beautiful, intuitive charts.
Receive personalized recommendations based on your unique hormonal patterns.
Share relevant insights with your partner for better understanding and support.
Accurate period, ovulation, and fertile window predictions powered by your data.
Optimize workouts and recovery by training in sync with your cycle phase.
Visualize your hormone levels throughout your cycle with beautiful, intuitive charts.
Receive personalized recommendations based on your unique hormonal patterns.
Share relevant insights with your partner for better understanding and support.
Accurate period, ovulation, and fertile window predictions powered by your data.
Optimize workouts and recovery by training in sync with your cycle phase.
Visualize your hormone levels throughout your cycle with beautiful, intuitive charts.
Receive personalized recommendations based on your unique hormonal patterns.
Share relevant insights with your partner for better understanding and support.
Advisors
Experienced advisors shaping Clair with care, credibility, and purpose.
Co-Founder, Stanford Wearables Lab
Ob-gyn and REI specialist, Stanford
Assistant Professor, Stanford
Director, Stanford FASTR Program
Clair Health is building the world's first wearable continuous hormone monitor. Track estrogen, progesterone, LH, FSH & PdG in real-time. Join the Clair Health waitlist at wearclair.com.
Visit wearclair.com