Fitness 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 menstrual cycles.
The startup said the panel includes 11 blood biomarkers that can provide information on aspects such as cycle regulation and hormonal transitions: Anti-Müllerian hormone (AMH), Progesterone, Prolactin and Thyroid Peroxidase Antibodies (TPOAb), Free T4, Free T3, Leptin, Vitamin B12 (Cobapharusteos), Phaphorosteos.
The company claims that measuring these biomarkers will help users understand more about perimenopause, thyroid function, nutrient adequacy and metabolic bone resilience when combined with data about activity, sleep and recovery.
The trial will be available for users to purchase starting next month. When Whoop launched its blood test service in September 2025, it had over 350,000 people on its waiting list.
Meanwhile, the Whoop apps’ new Hormonal Symptom Insights and Predictions feature builds a model of hormonal changes during menstrual cycles based on past data. It uses this model to predict possible date windows for the next period, provide information about cycle length, period length and abnormalities, and analyze individual symptom patterns.
The company said it can link information from this feature with lab results to classify biomarker results into “optimal,” “adequate” or “out of range” categories.
Whoop was also released a new white paper on the menstrual cycle to provide insight into the company’s modeling behind these new features.
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Fitness wearable companies have been working lately to add more features and services that cater to women’s health to address demand from this long-underserved part 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 would provide health data insights and answer questions.
Whoop said Tuesday it saw a 150 percent increase in women using its products compared to a year earlier, making it its fastest-growing user segment. The company noted that women are 30% more engaged with the Whoop AI feature.
In October 2025, Oura’s director of commerce, Dorothy Kilroy, told TechCrunch that the company’s fastest-growing user base was women in their twenties.
