Whoop Launches New Blood Test Focused on Women’s Health

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

The startup said the panel includes 11 blood biomarkers that can provide insights into aspects such as cycle regulation and hormonal transitions. Anti-Müllerian hormone (AMH), progesterone, prolactin and thyroid peroxidase antibody (TPOAb), free T4, free T3, leptin, vitamin B12 (cobalamin), folic acid, magnesium and phosphate (phosphorus).

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

Tests will be available for purchase by users starting next month. When Whoop launched its blood testing service in September 2025, there were more than 350,000 people on its waiting list.

Meanwhile, the Whoop app’s new Hormonal Symptom Insights and Prediction feature creates a model of hormonal changes across your menstrual cycle based on your previous data. This model can be used to predict the likely date window for your next period, providing insight into cycle length, period length and irregularity, and detailing individual symptom patterns.

The company said insights from this feature can be linked to laboratory results to classify biomarker results into ‘optimal,’ ‘sufficient,’ or ‘out-of-range’ categories.

Whoop has also released a new menstrual cycle whitepaper to provide insight into the company’s modeling behind these new features.

Fitness wearable companies have recently been working to add more features and services tailored to women’s health to address the needs of a long-underserved user base. Earlier this month, smart ring maker Oura launched a new AI model focused on women’s health, along with a chatbot that provides insights into health data and answers questions.

Whoop said Tuesday that the number of women using its products has increased 150% from a year ago, making it its fastest-growing user segment. The company said women are 30% more likely to engage with Whoop AI features.

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.