Why we built Proof

“I’d already had my caffeine. I still needed to focus — and I didn’t want to touch my sleep to get it.”

I've always loved energy drinks — the ritual, the lift, the focus. But I kept hitting the same wall: I'd already had my caffeine for the day, and by the time I actually needed to focus again — studying, working, or getting a late workout in — another caffeinated drink wasn't the answer. It would either keep me up half the night or just pile more stimulant on top of what I'd already had.

I went looking for something built for that exact moment: real focus, without caffeine, without wrecking my sleep. It didn't exist — not with ingredients I actually trusted, anyway. So I built it myself.

Proof is what I wished was already on the shelf — something I can reach for during a late study session, a work sprint, or a late gym session, without piling more stimulant on top of what I've already had that day.

— Jonathan Green, Founder