Whoop is expanding beyond wrist-based metrics with a new women’s health blood panel and app features designed to decode hormonal shifts across the menstrual cycle.

Through its Whoop Labs blood testing service, the company is introducing a panel built around 11 biomarkers tied to reproductive health, metabolism, and nutrient status. The test measures Anti-Müllerian Hormone, Progesterone, Prolactin, Thyroid Peroxidase Antibodies, Free T4, Free T3, Leptin, Vitamin B12, Folate, Magnesium, and Phosphate.

Whoop says this combination can illuminate issues such as cycle regulation, perimenopause, thyroid function, nutrient sufficiency, and bone metabolic resilience. The promise lies in pairing lab values with the continuous data Whoop already collects on strain, sleep, and recovery, giving users a more complete picture of how hormones and lifestyle interact.

The panel will be available as an add-on purchase for members, extending Whoop’s push into lab testing after strong early interest in its broader blood work offering.

Alongside the new panel, the company is rolling out Hormonal Symptom Insights and Predictions in its app. Using historical cycle data, the feature builds an individualized model of hormonal change over time. It then predicts likely windows for upcoming periods, highlights cycle and period length patterns, flags irregularities, and tracks symptom trends such as mood shifts, cramps, or fatigue.

Whoop says it can connect these app-based insights with blood test results, categorizing each biomarker as optimal, sufficient, or out of range. The goal is to help users interpret lab numbers in the context of how they actually feel and perform, rather than as isolated figures on a report.

The company has also published a menstrual cycle white paper outlining the science and modeling behind its new tools, part of an effort to build credibility in an area where women have often been underserved by generic fitness and health platforms.

Women now represent Whoop’s fastest-growing user segment, with usage among women rising sharply over the past year. The company reports that women also interact more frequently with its AI-driven features, suggesting strong demand for personalized, data-rich guidance around hormonal health.