Name: Jenny Duan
Company: Clair Health
Position: CEO and Founder
Website:https://wearclair.com/
About Jenny Duan
Jenny Duan is the co-founder and CEO of Clair Health, the company behind Clair, the world’s first noninvasive continuous hormone monitoring wearable. Clair Health is redefining how a woman’s hormonal health is understood by translating real-time physiological signals into continuous hormone intelligence without blood tests, urine strips, or invasive procedures. Clair is built to deliver the actionable insights women need to understand and navigate fertility, performance, perimenopause, menopause, and overall hormonal health.
Clair is designed to enable users to monitor key hormones, including estrogen, progesterone, LH, and FSH, passively and noninvasively. Similar in concept to a continuous glucose monitor but built for hormone health, Clair operates through a multimodal sensor stack composed of 10 biosensors across multiple physiological modalities. The system tracks over 130 biomarkers simultaneously, including temperature dynamics, heart rate variability, breathing patterns, sleep architecture, and autonomic nervous system responses. Clair then infers hormonal readings based on how the body responds in real time rather than relying on isolated snapshots.
As a 21-year-old Stanford graduate, Jenny founded Clair Health after recognizing a fundamental gap in both wearable technology and women’s healthcare. While studying women’s health and nonprofit philanthropy, her academic work focused on systemic healthcare disparities, particularly where women’s symptoms and experiences are frequently dismissed or poorly measured.
Jenny’s perspective and passion for women’s health took shape in high school when she worked with Rose Haven, a nonprofit supporting women and children experiencing domestic violence and homelessness. There, she observed how often women’s physical symptoms were minimized or disregarded due to a lack of measurable data. Without objective biological signals to reference, many women were told their symptoms were “in their head.”
Clair Health’s research and development process prioritized rigorous validation. Prototype testing was conducted on over 40 women across 127 complete menstrual cycles, generating more than 5,000 days of continuous physiological data. The study population included both regular and irregular cycles, participants aged 18-45, diverse BMI ranges, and full Monk Skin Tone representation to ensure consistent optical sensor performance across skin tones. Results demonstrated 94.10% cycle phase classification accuracy using wearable data alone, along with 87% sensitivity in detecting LH surges with timing accuracy within approximately 1.2 days.
Hormonal patterns influence energy, mood, cognitive performance, physical training, fertility, and long-term health transitions, including perimenopause and menopause. Clair Health’s mission is to unlock continuous hormone intelligence for every woman, enabling more informed, insight-driven control over personal health decisions.
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