The PFAS test trusted by firefighters and first responders, now available for everyone!

About Us

Relentless Health is dedicated to improving the health and fitness of our first responder heroes, while also helping anyone who is regularly exposed to toxins. Our name captures our vision and reflects the ethos of the first responders we support.

non invasive biometrics, Health Data Platform

Who we are

Our world-class team is at the forefront of healthcare technology and innovation. We are dedicated to making a tangible difference to people's lives and propelling our vision into a transformative reality.

Supporting first responder organizations

First responders face unique health challenges due to the rigors of their profession. Relentless Health is on a mission to improve health and fitness outcomes for our first responder heroes. We feel it’s important to back up our words with actions. So, we have made a formal pledge:
A proportion of every sale made by Relentless Health will be donated to organizations that help first responders or that directly address the health risks they face
After paying for your test, you will be shown a list of organizations to choose to receive the donation

Meet the team

The whole team at Relentless Health is focused on helping you understand the toxins you are exposed to and the harm this can cause. Below we introduce a few of our key team members:

Richard Kho

CEO and health data nerd

What do you do at Relentless Health?

In my role as CEO, I get to do a little of everything! From providing input on our product development, to working on sales and marketing, there's never a dull moment. The best part of my role is working with great people on a common goal to deliver health insights to everyone.

Where can you be found when you're not working on the Relentless Health mission?

In my daydreams, traversing remote destinations and taking on new adventures in the outdoors. In real life, probably helping with carpools for our kids' afterschool activities. And in between, trying to figure out how to tweak my daily living to improve health and wellness!

Toby Moncaster

 Head of Product & marketing; travel, food, and DIY

What do you do at Relentless Health?

I am responsible for all aspects of designing and scoping our products to make sure they deliver what you, the users, need. I have to balance user requirements, business needs, and technical constraints. I am also in charge of all marketing activities.

Where can you be found when you're not working on the Relentless Health mission?

I spend a lot of time traveling (28 countries and counting). I am passionate about cooking and gardening, especially growing my own vegetables. I love DIY projects and wish I could spend more time making things with my hands. My dream is to build a proper workshop in my backyard!

Cesar Arevalo

Engineering Director and software genius

What do you do at Relentless Health?

I do various things, anything from managing the application development to managing IT. But my primary focus has been on software development, and I get involved in everything from setting up our stack to developing code for our app.

Where can you be found when you’re not working on the Relentless Health Mission?

During week nights at soccer fields picking up my two teenage daughters from their training. On weekends we watch a series, right now we are following the rings of fire, but the kids like the Marvel movies a lot so we may rewatch one of those too.

Gary Mocnik

V.P. Regulatory Affairs & Quality; powerboat fanatic

What do you do at Relentless Health?

Responsible for navigating the myriads of state and federal regulations applicable to our services and assuring our policies and procedures are compliant. Working with team members to provide accurate and complete documentation of our testing services to assure our customers that they are receiving reliable results.

Where can you be found when you’re not working on the Relentless Health mission?

I can be found anywhere there is adrenaline or music. From high performance boating, to snow skiing, to mountain biking for the adrenaline rush. On the more relaxing side, my wife and I enjoy music festivals and concerts. We are rarely found “at home”.

Lindsey Harrigan

Medical Technologist-Chemistry, Avid 49ers fan.

What do you do at Relentless Health?

As a Medical Technologist at Relentless Health, I process and evaluate samples for PFAS in the laboratory. I also assist in running method development and validation testing and protocols.

Where can you be found when you're not working on the Relentless Health mission?

When I am not working in the laboratory, you can find me spending time with my family, watching sports, reading, hiking, swimming, and working on house projects. 

Kara Meyer

Director of Commercial Lab Operations, certified lab rat

What do you do at Relentless Health?

My role as the Director of the commercial laboratory is to ensure our laboratory developed tests are compliant with regulatory and scientific requirements, and to ensure that the laboratory runs smoothly. I have the pleasure of working with all departments to drive our common goals forward. 

Where can you be found when you're not working on the Relentless Health mission?

In my time away from Relentless Health you can find me traveling with my husband whenever possible, or hunkering down in our Tahoe treefort with our 2 dogs and 2 cats. I enjoy spending time outdoors, baking, and spending time with my family and friends.

Our lab certifications

Our lab in Reno is licensed by the State of Nevada under both CLIA and State regulations for clinical laboratories. Our CLIA License number is 29D2302788 and our state of Nevada License number is 12531-LIC-0.