Level Zero Health, a recent graduate from SOSV’s HAX hard tech program, has just secured $6.9M in a pre-seed funding round of $6.9 million led by European VC, redalpine, HAX (SOSV), Entrepreneur First (EF), and industry experts.

Founded by Ula Rustamova and Irene Jia, Level Zero Health is pioneering continuous hormone monitoring—a breakthrough that could revolutionize fertility care, hormone-based treatments, and personalized medicine.

“The goal is to create a whole new market. The same way CGMs [continuous glucose monitors] did. They literally, out of nothing, created a multi-billion dollar market.” – Ula Rustamova, Co-founder & CEO

By eliminating the need for invasive blood draws, their innovative biosensor could do for hormone tracking what CGMs did for glucose monitoring—creating an entirely new category in medtech.

“Continuous hormone measurement is one of the holy grails of diagnostics… paving the way for a new era of personalized health management.” – Philip Kneis, Investor at redalpine