Batch 001 — Pre-Order
Rx² Workout Fuel Square
$35
| 7-Pack
Flavor
Chocolate Chip Cookie Dough
Naturally Flavored
★ ★ ★ ★ ★
"Honestly really good. Taste is solid, texture's chewy."
— Michael R.
"Way more consistent than my old pre-workout."
— Jennifer H.
"Feels intentional. Way better than a granola bar."
— David V.
"Everything you need before a workout in one thing."
— Sarah M.
"12 years training. This is a real step up."
— James C.
"More convenient and cheaper than the gas station."
— Cam P.
Included
Free Shipping
Free Insulated Packaging
Charged Today, Ships August 2026
Ingredients:
White rice flour, Tapioca syrup, Semi-sweet chocolate (cane sugar, unsweetened chocolate, cocoa butter), Cocoa butter, Coconut sugar, L-tyrosine, Potassium citrate, Himalayan sea salt, Natural caffeine (green tea leaf extract), Vanilla extract.
Rx² is a workout fuel square engineered for the 15–30 minutes before you train. Inside one square: 25g of fast-digesting carbohydrates for immediate fuel, sodium and potassium for hydration, and 100 mg of natural caffeine from green tea — paired with L-tyrosine for clean, controlled focus. Ten ingredients. Each one selected for a single purpose. No fillers. No proprietary blends. No overstimulation. No mixing. No measuring. No guesswork. One square. Every session. Before every workout. The same input. The same result. The same ritual. Preparation makes performance.
Rx² is pronounced "R X Square."
Rx is medical shorthand for a prescribed dose — a controlled, intentional input engineered for a single purpose. The ² is the format: a precise squared unit, engineered to be taken the same way each time. One stands for intention. The other stands for structure. Together, they're what every workout deserves.
The name is the product. The product is the protocol.
Rx is medical shorthand for a prescribed dose — a controlled, intentional input engineered for a single purpose. The ² is the format: a precise squared unit, engineered to be taken the same way each time. One stands for intention. The other stands for structure. Together, they're what every workout deserves.
The name is the product. The product is the protocol.
I'm nineteen, and I've trained for seven years.
Long enough to notice what nobody talks about: most people don't fuel before a workout. They improvise. A banana on the way out. Rice crispies and candy for carbs. An energy drink in the car. Pre-workout on an empty stomach. Or nothing at all.
Every option has a tradeoff. None of it is built for consistency.
So I kept asking the same question: why isn't there one thing designed for the 15 to 30 minutes before training? Real fuel. No prep. No second-guessing. Something you can reach for every time.
That product didn't exist. So I built it.
One square. Ten ingredients. Every one of them has a job.
Consume. Train. Repeat.
Preparation makes performance.
— Alex, Founder
4.5
★ ★ ★ ★ ★
6 Reviews · Batch 001
Michael R.
★ ★ ★ ★ ★
"Honestly really good. Taste is solid and the texture's chewy, easy to eat. Super convenient too."
Early Tester · Batch 001
Jennifer H.
★ ★ ★ ★ ☆
"I used to lean on caffeine and pre-workout pretty hard. Now I just grab one of these before I head out. It's not as intense obviously, but it's way more consistent for me."
Early Tester · Batch 001
David V.
★ ★ ★ ★ ★
"What I like is how intentional it feels. It's clean. I feel like I'm actually eating the right thing before the gym instead of just grabbing a granola bar like I used to."
Early Tester · Batch 001
Sarah M.
★ ★ ★ ★ ☆
"Love the idea—nothing else really like it. Pretty much everything you need before a workout in one thing, which saves time. Only thing is the chocolate melted a little, but it's a prototype so I get it."
Early Tester · Batch 001
James C.
★ ★ ★ ★ ☆
"Had a really good workout on it. Energy didn't really hit until like 30 min in, but that makes sense, it's a different kind of product. I've been training for 12 years and people are way too dependent on caffeine and energy drinks—been looking for something different for a while. This feels like a real step up. Could see myself using it regularly."
Early Tester · Batch 001
Cam P.
★ ★ ★ ★ ★
"Used to stop at the gas station every time before the gym—grab two Rice Krispies and an energy drink, like six or seven bucks. Now I just take one of these. Way more convenient and cheaper. I get the same workout energy, honestly probably better."
Early Tester · Batch 001
Batch 001 Pre-Orders
933 / 1000
One Square
On-the-Go
One square. Pocket-ready. No prep, no shaker.
Peace of Mind
No guesswork. The same input. The same result. Every session.
Real Fuel
Fast carbs, electrolytes, clean caffeine. Built for what you're about to do.
Zero Compromise
Ten intentional ingredients. No fillers. No proprietary blends. Nothing wasted.