Mira, a leading hormonal health company, launches Ultra4, the first at-home hormone monitor to bring real lab-quality insights to your fingertips — tracking four key hormones (FSH, LH, E3G, and PdG) with just one wand and a 16-minute test. For the first time, people can see the full story of their cycle — from ovulation strength to hormonal balance — all from home, with the same precision once only available in clinics.
Mira began in 2018 with a single question: Why do so many women still not understand their cycles, even with all the apps and ovulation sticks available? The company’s first solution was a single-hormone tracker focused on LH (Luteinizing Hormone), designed to help women identify ovulation. But it quickly became clear that real hormonal health is more than a peak or a surge – especially for people with irregular cycles, hormone imbalances, or complex fertility journeys.
Why track four hormones?
Now, with Ultra4, Mira’s technology can track FSH, LH, E3G, and PdG simultaneously – offering a full hormonal profile and adapting to each user’s unique biology. By tracking all four hormones together across the entire cycle – not just during the fertile window – Mira gives users a more complete picture of their hormonal health. This includes spotting irregularities, identifying hormonal imbalances, monitoring shifts over time, and understanding where they are in their reproductive journey, whether trying to conceive, managing PCOS, or approaching menopause.
How is Ultra4 different?
Ultra4 is the only tracker on the market powered by fluorescent technology – the same used in clinical laboratories – and offers up to seven times the accuracy of other fertility trackers on the market. It’s also highly sensitive, able to detect subtle hormonal shifts that many consumer devices miss. Unlike other devices, users aren’t restricted to a rigid testing window; they can test any day of their cycle – or multiple times a day if needed – with guidance from Mira’s AI-powered app, which adjusts to each person’s unique hormonal patterns over time.
The product also introduces new features:
- 4D Ovulation Profiling – Models the full hormonal ecosystem to assess not only when ovulation may occur, but how strong and viable it is
- Egg Prep Scan – Shows whether follicle development is on track at the beginning of the cycle, before ovulation even starts
- Hormonal Fingerprint – Creates a personalized baseline of each user’s hormone trends over time, helping to flag irregular cycles, hormone imbalances, or early signs of perimenopause
- Cycle Balance Analysis – Evaluates LH:FSH and E3G:PdG ratios to reveal how well your hormones work together
- Egg Count Intelligence – Tracks FSH daily for dynamic, at-home insights into egg health and ovarian reserve
“When we launched Mira, it was with a single hormone and a single goal: help women understand their fertility better,” said Sylvia Kang, CEO and Co-founder of Mira. “But users kept asking harder questions – about irregular cycles, missed ovulation, egg quality, hormonal balance. Ultra4 is our answer to those questions. It reflects everything we’ve learned in the past seven years from listening to our community.”
Ultra4 represents Mira’s effort to address a persistent blind spot in women’s health: the lack of accessible, continuous hormone data. Mira’s mission extends beyond fertility to creating a comprehensive hormone health platform that tracks key markers like cortisol, testosterone. The company is developing wearable tech to bring real-time, multi-hormone monitoring into everyday life, transforming hormone data into vital signs for personalized health.
About Mira
Mira is a San Francisco-based hormonal health company providing integrative care and hormonal testing Mira was founded in late 2015 with a mission to develop data-driven hormonal health solutions to help women make confident health decisions during every stage of their lives – from the menstrual stage to menopause.
For more information on Mira, please visit miracare.com.
