Serhii Zatsarynin

Founder, Innovator, and Hormone Health Advocate

Serhii Zatsarynin is the founder and CEO of Ovul, a science-backed healthtech company making hormone tracking simple, private, and empowering through AI-powered saliva testing. His passion for women’s health began with personal fertility challenges while trying to conceive his third child, revealing critical gaps in hormone diagnostics and care.

With a background in diagnostics and advanced training from Siemens as an application and service engineer, Serhii brings deep technical expertise to developing non-invasive hormone monitoring tools. Under his leadership, Ovul has enabled pregnancies—including one after seven years of infertility due to PCOS—and uncovered early signs of hormonal imbalances and many more.

Serhii is committed to giving women daily insight into their health, helping them make informed decisions with just one drop of saliva.