Mos Health has raised about €920k (US$1.1m) in pre-seed funding for an AI preventative health platform aimed at helping users stick to healthier habits.
The Polish-American startup is building what it calls an “AI Health Partner”, combining personalised health protocols, or step-by-step plans, with matched supplements to support routine changes.
Mos Health says it is targeting an “execution gap” in preventative health, arguing that only 25 per cent of US adults are sufficiently active and that many diets fail because routines are hard to sustain.
The system has two parts: an app that analyses sleep, diet, lab results and wearable data from devices such as Apple Watch and Oura to generate personalised protocols, and a supplements line made with a US partner, intended to act as the physical “execution layer” for the app’s recommendations.
The company was founded by Patrycja Brzozowska, formerly chief operating officer and a founding team member at Wellbee, a Polish employee mental health platform acquired by Benefit Systems in 2024.
She is joined by co-founders Paweł Chrzan, a co-founder of Wellbee, and Paweł Sobkowiak, former chief technology officer at Booksy.
Brzozowska said: “Mos Health was born from my own struggle to stay consistent. I realised that generic advice isn’t enough; we need a system that acts on our data and removes the friction of execution.
“We are building the partner I wish I had, one that guides you step-by-step.”
The funding will be used to build the company’s minimum viable product, develop its core technology and begin its first US deployments.
US market launch
Mos Health plans to launch in the US using a business-to-business-to-consumer model, where employers offer the service to staff as part of a benefits package.
The company says it has signed its first letters of intent with Bay Area tech startups.
Chrzan said: “We’re starting in the US because it’s a market where innovation reaches companies and users much faster. The employee benefit model is a natural fit for us.
“We spend most of our day at work, and that’s where it’s easiest to introduce lifestyle changes that actually stick.”
The round was co-led by SMOK Ventures and Movens Capital, with participation from Tomasz Karwatka, Piotr Karwatka and Anna Lankauf, among others.
Borys Musielak, partner at SMOK Ventures, said: “As soon as I heard that Patrycja and Paweł were building a new startup, I immediately knew it would be a fit for SMOK.
“Serial entrepreneurs with a successful exit in Poland and ambitions for a much larger global win, that’s practically our investment template.
“We decided to back Mos Health within days of meeting the founders, and we’re keeping our fingers crossed for their success in the US market.”
