Excellence in the laboratory and the operatory.

We started Rheyo to bring thoughtful innovation to oral health — through science, engineering, and respect for the clinical experience. Our goal is to create tools that make care more effective, more comfortable, and more consistent — beginning with whitening.

Co-founders

Two chemical engineers, working alongside our advisors.

Rheyo was started by brothers and chemical engineers, but our work is shaped just as much by the clinicians and scientists on our advisory board. Scientists, practicing dentists, and patient input inform every product decision.

Co-founder & CEO

Daniel Lundberg, PhD

Usually in a practice with dentists, hygienists, and owners — listening to what they actually need and making sure Rheyo builds it.

Co-founder & CTO

David Lundberg, PhD

Spends his days in the lab, hands on the chemistry — turning what clinicians ask for into formulations and devices that hold up chairside.