Company

Certified Accuracy You Can Trust

YO isn’t just another consumer device, it’s a certified medical solution. Validated in independent studies with 97% accuracy, YO is proven against both manual microscopy and automated semen analyzers.

Certified Standards

Together, these certifications ensure YO delivers lab-quality data that physicians and clinics can rely on, bridging the gap between at-home convenience and professional accuracy.

FDA-Cleared (U.S.)

Authorized for over-the-counter, clinical-grade use.

CE-Marked (Europe)

Certified for international safety and performance.

WHO 6th Edition Compliant

Meets the latest global fertility testing standards

Trusted Around the World

YO is built on MES’s 25+ years of innovation in semen analysis technology. Our systems are used daily in leading hospitals, fertility networks, and labs worldwide.

Trusted by US Fertility, Kaiser Permanente, LabCorp, the US Military, and many more.

By the Numbers

Clinics worldwide use MES technology.
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Tests Conducted globally.
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Rely on YO and MES devices.
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The Advantage for Affiliates

Designed for affiliates who want a trusted product that sells itself, backed by clinical accuracy and effortless support.

Expand services without extra workload:
Pre-Screen patients at home before they arrive in your office.

Lower-cost entry point: Patients can take the first step without financial hesitation.

Better patient flow: Abnormal results drive patients back to you for full evaluation and treatment.

Marketing made easy: Ready-to-use content, seasonal campaigns, and dedicated support.

The Advantage for Clinics

YO combines accessibility for patients with clinical trust for providers, creating unique value whether you’re a healthcare clinic or an affiliate partner:

Promote a doctor-recommended solution: YO is FDA-cleared, CE-marked, and 97% accurate.

High earning potential: Up to 25% commission with flexible discount structures.

Rising market demand: Home fertility testing is a fast-growing space with proven consumer interest.

Clinical-grade results: Data is immediately usable in professional consultations.

How It Works

See how YO helps clinics expand services and keeps patients engaged with accurate, WHO 6th Edition–aligned results.

Company

YO is developed by MES, a global leader with 25+ years in automated semen analysis and fertility diagnostics.

Partner With YO

Connect with our team to offer YO kits to offer YO kits at your clinic or learn about wholesale opportunities and support options.