Clair Health Raises $11.6M for Continuous Hormone-Tracking Wearable
June 17, 2026
Clair Health, a San Francisco startup founded in 2025 by Stanford graduates Jenny Duan and Abhinav Agarwal, has raised $11.6 million in seed funding to build the first noninvasive, continuous hormone-tracking wearable for women. The round was led by Khosla Ventures (known for backing DoorDash and Okta), with participation from a16z speedrun, Brydge Club, Cartan Capital, and Sequoia Capital’s Anne Wojcicki.
The jewelry-inspired wrist-worn device uses 10 biosensors and over 130 proprietary biomarkers to continuously measure estrogen, progesterone, LH, FSH, and PdG without blood draws, urine tests, or needles. It tracks inflammation, bloating, energy levels, and cycle phase classification to provide insights into cycle irregularities, perimenopause, and hormonal fluctuations. The wearable will cost $369 with a $9.99 monthly app subscription, and the company has already built a 25,000+ person waitlist.
Clair plans to launch the product in November 2026 after testing with closed beta users. The funding will support the launch and ongoing clinical research to create a foundational hormonal data layer for women—from their first period through perimenopause and beyond. The device aims to maintain accuracy even for women with PCOS and irregular periods, addressing a long-underfunded area of women’s health. Athletech News
