Whoop launches a new blood test focused on women’s health

Wearables maker Whoop is launching a new panel focused on women’s health through its blood testing service Whoop Labs. The company is also adding a new feature to its app that displays information about hormonal changes during the menstrual cycle.

The startup said the panel includes 11 blood biomarkers that can provide insight into aspects such as cycle regulation and hormonal shifts: anti-Müllerian hormone (AMH), progesterone, prolactin, thyroid peroxidase antibodies (TPOAb), free T4, free T3, leptin, vitamin B12 (cobalamin), folate, magnesium, and phosphate (as phosphorus).

The company claims that measuring these biomarkers will help users understand more about perimenopause, thyroid function, nutrient adequacy, and bone metabolic resilience, when paired with data on activity, sleep, and recovery.

The test will be available for users to purchase starting next month. When Whoop launched its blood testing service in September 2025, it had more than 350,000 people on a waiting list.

Meanwhile, the Whoop apps’ new Hormone Insights and Forecast feature creates a model of hormonal changes during menstrual cycles based on historical data. This model is used to predict likely date windows for the upcoming period, giving insight into cycle lengths, period lengths and irregularities, and details of individual symptom patterns.

The company said it can link insights from this feature to lab results to sort vital sign results into “ideal,” “adequate,” or “out of range” categories.

Whoop has also released a new PMS report to give an insight into the company’s model behind these new features.

Wearable fitness companies have recently been adding more features and services that cater to women’s health to meet demand from this long-underserved portion of the user base. Earlier this month, smart ring maker Oura released a new AI model focused on women’s health, along with a chatbot that will provide insights into health data and answer questions.

Whoop said Tuesday it had seen a 150% increase in the number of women using its products compared to the previous year, making up its fastest-growing user segment. The company notes that women engage 30% more with the Whoop AI feature.

In October 2025, Dorothy Kilroy, Oura’s chief commercial officer, told TechCrunch that the company’s fastest-growing user base was women in their 20s.