The people behind Circl.

A close-knit team, built with high level expertise. From formulation to the field, every decision we make is grounded in science and tested in the real world.

Woman running on a hill with a scenic view of mountains and a lake.

Head of Nutrition

Laura Warren

Laura Warren is a Registered Clinical Nutritionist and Functional Health Practitioner with 20 years at the leading edge of precision health and human performance. As Circl's Head of Nutrition, she shapes both the science behind our formulations and the education we put out into the world. Her approach is simple: test, don't guess.

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Circl Athletes

Building products around athletes. We share an aligned vision of innovation, integrity, and collaboration with our athletes.

Person in athletic wear standing on a mountain path with trees and sky in the background

Ultra Runner

Anthony Grant

"I slowly pegged my way all the way through the distances to 100mile+ ultramarathons. Along the way, I transformed my life, mental health and wellbeing"

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Multisport Athlete

Maeve Williams

"Training and exercise has become a way of life for me. I treat it as a reward, with a busy work life this time is special to me and even on the hard days I find joy in movement."

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Muay Thai Fighter

Jules Vassalos

"I love the challenge and competition that the sport presents. Reaching new levels of fitness and advancing my skills, there’s always improvements to be made and that’s what keeps me working hard."

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