Our story · Expert built
For those chasing greater heights.
Zest is where science fuels ambition.
We believe in applying science to empower those who challenge the status quo and push the boundaries.
We are dedicated to elevating health, energy, and performance for a new generation, all while raising the bar for innovation and quality.
Our promise
Born from science, built for high performance.
Third party tested
Formulated by neuroscientists
Highest quality ingredients
Patented technology
Clinically validated formula
Reusable, sustainable packaging
A note from the founder
“Zest was born from our own pursuit of better mornings.”

Jason Jin · Zest Founder
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Zest was born from our own pursuit of better mornings.
Like many of you, I've felt the frustration of waking up groggy, despite trying every trick and sleep solution out there. As a night owl with a background in sleep research and having worked with top sleep clinicians and physicians at my previous sleep company, Crescent, I knew that the science existed to make mornings better – and wanted to make it easy and accessible to everyone.
From this dream, Zest was born. I set out to create better tools for making better sleep and energy effortless.
Together with leading scientists, physicians, and sleep experts who understand the science of better sleep and health, we developed our flagship “Wake-Up Pill”, which releases caffeine at an optimal time, helping you wake up feeling naturally alert and ready to perform at your best. It's designed to support your long-term sleep health through consistency over time.
Zest is for those who want more out of their days. It's for the late-night creatives, the professionals who don't have time to ramp up slowly, the jet sailers chasing time zones, and the dreamers and doers living life to the fullest.
Thank you for joining us on this journey. Let's do great things together.
Expert built
Meet the experts behind Zest.

Dr. Sohaib Imtiaz
MD in Lifestyle Medicine

Dr. Dario Dornbierer
PhD in Clinical Psychopharmacology

Dr. Firat Yerlikaya
PhD in Pharmaceutical Technology
10 years of research
Good things take time.
2016
First research collaboration.
2021
Peer-reviewed publication in Scientific Reports.
2024
Wake-Up Pill launches.
2025
Zest 2.0.
2026
Travel Pack.