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Clair, a startup founded by Stanford graduates, is developing a wearable device for continuous hormone monitoring to improve women's hormonal health understanding. The device, resembling a wrist bracelet, connects to a mobile app for user data processing, ensuring privacy by avoiding external data centers.

Clair aims to seek FDA approval to position itself as a medically credible product. A clinical trial is planned at Stanford Medicine for spring 2026. Hormone tracking is expected to provide insights into menstrual cycle patterns and aid in diagnosing various health conditions.