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Stop guessing what works

Knowing what's effective for endurance athletes and safe for competition is harder than it should be. We remove the guesswork.

Every formula starts with evidence.

We look through scientific research and build each formula around what delivers the best results for endurance athletes. Everything else is left out.

Every ingredient is carefully chosen based on scientific research.

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50,000+ verified 5-star reviews

Trusted by the fastest athletes

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Simon DUBC Rower

“I've been using the Performance Blend during threshold efforts and I'm impressed by how well it manages lactate buildup and keeps my legs feeling fresh.”

Cullan WVarsity Wrestler

“I’ve gotten noticeably better endurance from taking the Performance Blend”

John CUVic Rower
Bob WatersM Varsity 8 · Yale

“The best pre-workout I've ever had. Our entire varsity 8+ uses this now — switched the whole boathouse over.”

Bob WatersM Varsity 8 · Yale

“The best pre-workout I've ever had. Our entire varsity 8+ uses this now — switched the whole boathouse over.”

Bob WatersM Varsity 8 · Yale

“The best pre-workout I've ever had. Our entire varsity 8+ uses this now — switched the whole boathouse over.”

Frank BushLightweight · Princeton

“I've tried every pre-workout on the market. Recently pulled a 5:43 2k on Performance Blend. Nothing else hits like this.”

Tom TreeMasters · Potomac BC

“Clean ingredients, no jitters, smooth crash. Exactly what you want before a hard erg piece. Great product, full stop.”

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