Clair Health

Mountain View, California All United States companies → — Founded 2025

Medical Device / Hardware Specialty-Focused AI Wearables / RPM

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Products

Clair

Clair Health

Clinical Decision Support & Reference

Clair is an AI-powered drug interaction analysis tool that provides instant, evidence-based guidance for multiple medications, trained on FDA and NIH data to enhance patient safety.

$369 device + $9.99/month subscription

See all 1 product →

About Clair Health

Clair Health is a healthcare AI company focused on women’s health, developing the world’s first non-invasive continuous hormone tracker. Their innovative wrist-worn wearable integrates 10 biosensors and over 100 proprietary biomarkers to continuously monitor estrogen, progesterone, LH, and FSH without the need for blood draws, urine tests, or needles. The device leverages deep learning models trained on diverse female physiology to provide real-time hormone insights and personalized knowledge.

This technology aims to empower women to understand their hormonal patterns, enabling them to advocate with evidence and shift towards preventative healthcare. Clair’s insights are applicable across various aspects of women’s health, including fertility, athletic performance optimization, understanding skin health and mood changes, and navigating hormonal health through perimenopause. The company emphasizes accuracy, accessibility, and data privacy, with a reported 94% cycle phase classification accuracy.

Focus Areas

Continuous hormone monitoring women's health fertility tracking hormonal health management athletic performance optimization perimenopause menopause support

Business Intelligence

Key Investors	Reach Capital
Partnerships	Stanford Medicine (for clinical trials)
Technology	Wearable device with 10 biosensors (skin temperature, resting heart rate, heart rate variability, sleep architecture, breathing rate, electrodermal activity, motion tracking) that correlate with estrogen and progesterone fluctuations. The device connects with an app, with processing on the app for data privacy. Utilizes a 'female biology world model' for hormone inference.

What Physicians Need to Know

Continuous Hormone Monitoring

Clair Health offers the first non-invasive, wrist-worn wearable that continuously monitors key reproductive hormones including estrogen, progesterone, Luteinizing Hormone (LH), and Follicle-Stimulating Hormone (FSH) in real-time. It infers hormone levels from multi-system physiological signatures rather than direct blood or urine measurements.

Women's Health Focus

Built specifically for female physiology, Clair addresses the historical lack of continuous hormonal data in women's health. It provides personalized insights across all life stages, from a woman's first period through perimenopause and menopause, and is designed to be accurate even for those with irregular cycles or conditions like PCOS.

Fertility Tracking & Planning

The device offers continuous, data-driven insights for fertility planning by tracking actual cycle progression. It can detect LH surges with high sensitivity and confirm ovulation by monitoring the post-ovulation progesterone rise, providing proactive notifications of the fertile window.

Hormonal Health Management

Clair helps users understand how hormonal patterns and changes across their cycle impact mood, energy, sleep quality, and overall well-being, enabling more informed decisions about their health.

Athletic Performance Optimization

Athletes can align their training, recovery, and daily activities with their hormonal cycle to optimize performance, energy levels, and resilience, gaining insights into how hormones influence recovery and training intensity.

Perimenopause & Menopause Support

Clair provides valuable data and insights during the perimenopausal and menopausal transitions, helping women understand how hormonal shifts affect their body, energy, and sleep, in a phase often characterized by a lack of clear information.

Key Differentiators

Clair stands out by offering continuous, non-invasive hormone monitoring through physiological inference, utilizing 10 distinct biosensors and 100+ proprietary biomarkers. Its AI/ML models are specifically trained on diverse female physiology, including irregular cycles and PCOS. The architecture is privacy-first, with all health data stored and processed locally on the user's device. The company is also pursuing clinical validation and future FDA clearance.

Technology Stack

The core technology includes a wrist-worn wearable with 10 biosensors (proprietary optical sensors, skin temperature, heart rate, HRV, breathing rate, multi-axis motion, sleep staging, electrodermal activity, bioimpedance). It employs advanced machine learning models for multimodal data fusion, with all AI processing occurring on the user's mobile device (Edge AI) for enhanced privacy. Data is stored locally in an encrypted database.

Physician Tip

For physicians, Clair Health offers an unprecedented window into a patient's continuous hormonal dynamics, moving beyond episodic blood tests or retrospective tracking. This objective, real-time physiological data can significantly enhance diagnostic accuracy and personalized treatment planning, especially for complex cases like irregular cycles, PCOS, and perimenopausal symptom management. The ability for patients to bring concrete data to appointments can foster more informed discussions, empower shared decision-making, and potentially reduce the need for frequent, invasive lab work. The privacy-first, on-device processing model also addresses critical patient data security concerns. As Clair pursues FDA clearance and further clinical trials, its data could become an invaluable tool for proactive, evidence-based women's healthcare.

Clair Health (the wearable) offers optional integration with Apple HealthKit and Google Health Connect, allowing users to import and export their health data with explicit permission.

Products by Clair Health

1 product in the directory

Clair

Clair Health

Clinical Decision Support & Reference

Clair is an AI-powered drug interaction analysis tool that provides instant, evidence-based guidance for multiple medications, trained on FDA and NIH data to enhance patient safety.

$369 device + $9.99/month subscription

What the Web Says

Clair Health appears to be a relatively new company with limited public reviews available across major platforms like G2, Glassdoor, and Capterra. Information regarding product reviews and employer experiences is scarce, making a comprehensive analysis challenging. The company focuses on AI-powered solutions for healthcare revenue cycle management.

Overall: Mixed

Strengths

Focus on AI-powered solutions for healthcare
Aims to improve revenue cycle management efficiency
Potential for innovation in healthcare technology

Limitations

Very limited public reviews on major platforms (G2, Glassdoor, Capterra)
Scarcity of detailed product feedback
Lack of employer reviews for company culture insights
Unknown market penetration and user base size
Difficulty in assessing long-term reliability and support

Based on reviews from: G2, Glassdoor, Capterra, Reddit, Healthcare IT Reviewers (general search)

Last updated: 2026-08-07

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Press & Coverage

Digital Health News

Clair Health Raises $11.6 Mn to Scale Health Monitoring Wearables

Clair Health, a Virginia-based digital health startup, secured $11.6 million in funding to accelerate the launch of its noninvasive, hormone-monitoring wearable. The device aims to provide personalized insights into women's health by continuously tracking key reproductive hormones.

2026-07

TNW

A 21-year-old Stanford grad just raised $11.6M to build a wearable hormone monitor that doesn't need blood - TNW

Clair Health, a San Francisco startup, raised $11.6 million in seed funding to develop the first continuous, noninvasive hormone monitor for women. The company plans to ship the wristband in November 2026 as a wellness product, with FDA clearance to follow later.

2026-06

FinSMEs

Clair Health Raises $11.6M in Seed Funding - FinSMEs

Clair Health, a San Francisco-based developer of wearable hormone monitoring systems for women, secured $11.6 million in seed funding. The capital will be used to expand clinical hardware engineering teams, accelerate regulatory clearance, and fund biometric validation studies.

2026-06

AIPressRoom

Clair Health Raises $11.6M to Launch Hormone Monitor - AIPressRoom

Clair Health, a San Francisco-based startup, raised $11.6 million in seed funding to launch the first noninvasive, continuous hormone monitor for women in November 2026. The device utilizes 10 biosensors and over 130 proprietary biomarkers to continuously measure key hormones.

2026-06

unknown

Clair Health Raises $11.6 Million to Develop Continuous Hormone Monitoring Wearable

Clair Health, a women's health technology company, secured $11.6 million in funding to support the development and launch of its noninvasive wearable for continuous hormone insights. The company plans an independent clinical trial through Stanford's Gladstone BeeHive program.

2026-06

Femtech Insider

Clair Health Raises $11.6M to Build Noninvasive Continuous Hormone Monitor for Women

Clair Health raised $11.6 million to develop a noninvasive continuous hormone monitor for women, with a planned launch in November 2026. The jewelry-inspired wrist device uses 10 biosensors and 130+ proprietary biomarkers to monitor key hormones.

2026-06

Forbes

A 22-Year-Old Just Raised $11.6 Million To Read Women's Hidden Hormone Signals

Clair Health, co-founded by Stanford graduates, secured $11.6 million to build a noninvasive, continuous hormone-monitoring wearable for women. The device infers hormone levels from biosignals like skin temperature, heart rate, sleep, and breathing data using machine learning.

2026-06

Fitt Insider

Clair Raises $11.6M to Launch Hormone-Monitoring Wearable | Fitt Insider

Clair Health secured $11.6 million to launch its continuous hormone monitor in November 2026. The wrist-worn device uses 10 biosensors and over 130 proprietary biomarkers to track estrogen, progesterone, LH, and FSH.

2026-06

Frequently Asked Questions

What specific hormones does Clair Health's continuous monitoring platform track, and how does it integrate into clinical practice for women's health and fertility management?

Clair Health's wearable device non-invasively tracks estrogen, progesterone, luteinizing hormone (LH), follicle-stimulating hormone (FSH), and PdG by inferring them from 10 biosensors and over 100 proprietary biomarkers. This continuous, real-time data can aid physicians in fertility tracking by identifying fertile windows and confirming ovulation, and in managing overall hormonal health by providing insights into patient hormone fluctuations to correlate medical issues and potentially reduce the need for repeat blood draws.

How does Clair Health ensure data privacy and compliance with healthcare regulations (e.g., HIPAA) for patient hormone data?

Clair Health prioritizes data privacy by implementing HIPAA-aligned security safeguards, including AES-256 encryption for data at rest and TLS 1.3 encryption for data in transit. Patient health information is primarily processed on the user's device, with optional encrypted cloud backup where Clair Health cannot decrypt the data, and research participation is opt-in with options for anonymous data or federated learning.

What is the pricing structure for Clair Health's continuous hormone monitoring services, and are there any pathways for insurance reimbursement?

The Clair Health wearable is priced at $369, accompanied by a $9.99 monthly subscription for its services. As the initial release is positioned as a general wellness device, specific pathways for insurance reimbursement for patients or clinics are not explicitly detailed, with numerical hormone values planned for a later, FDA-cleared version.

What kind of support does Clair Health offer to physicians and healthcare administrators for integrating their platform into existing workflows and interpreting patient data?

Clair Health is actively seeking partnerships with clinics and healthcare providers to facilitate the integration of continuous hormone data into existing patient care workflows. The platform is designed to empower patients to share their detailed hormone fluctuation data during healthcare visits, enabling physicians to gain deeper insights and better correlate hormonal patterns with medical conditions.

How does Clair Health's technology specifically aid in the management of perimenopause and menopause symptoms, and what insights can it provide for personalized hormonal health plans?

Clair Health's technology provides continuous insights into how hormonal changes impact the body, energy levels, and sleep quality during perimenopause and menopause, offering valuable data in a phase often characterized by diagnostic uncertainty. This ongoing tracking helps identify subtle trends and patterns that single-point measurements might miss, thereby supporting the development of more personalized and proactive hormonal health management plans.

Can Clair Health's platform be utilized to optimize hormonal health for female athletes, and what specific metrics are provided for performance enhancement?

Yes, Clair Health's platform is designed to help female athletes optimize their training, recovery, and daily activities by aligning them with their individual hormonal cycles. It provides insights into how hormonal fluctuations influence training capacity, recovery rates, injury risk, and perceived exertion, allowing athletes and their coaches to adjust regimens based on real-time physiological data for enhanced performance and resilience.

What is the current market position and stability of Clair Health, and what partnerships do they have with healthcare providers or research institutions?

Clair Health is a Stanford-founded startup that emerged from stealth in early 2026, with plans to launch its wearable device in late 2026 and a stated intention to pursue FDA approval for future versions. The company is actively collaborating with research institutions, including launching an independent clinical trial through the Stanford Gladstone BeeHive Initiative, and is seeking partnerships with clinics and healthcare providers to advance hormone health and integrate its technology into broader care pathways.