Team USA · UCLA
Train Harder.
Stick Every
Landing.
Perform at
Your Peak.
- Team USA Gymnastics
- UCLA Gymnastics
- 2025 NCAA Championship 2nd Place
- All-Pac-12 All-Around Honorable Mention
- Conference Champion (Big Ten)
The Athlete Behind the Name
Born in San Antonio. Built for the Podium.
Katelyn Rosen started gymnastics at age three — not because someone pushed her into it, but because she was born for it. Growing up in San Antonio, Texas, she spent her childhood turning the world upside down, literally, and refused to stop. By the time she reached her teens, that early love had evolved into relentless elite-level dedication.
Six years competing at the elite national level. A spot on the U.S. National Team. And then — the pinnacle — a full career at UCLA, where she competed in the all-around for the Bruins and earned All-Pac-12 All-Around Honorable Mention honors as a freshman. That's not luck. That's a decade of choosing sacrifice over comfort, every single day.
But elite gymnastics exacts a brutal physical toll that most people never see. Every vault landing sends a force equivalent to ten times bodyweight through her ankles, knees, and spine. Beam routines demand neurological precision so finely tuned that a single miscue can mean injury. Hours-long conditioning sessions obliterate muscular glycogen stores while demanding simultaneous mental sharpness. The body is a machine in constant conflict — and without the right fuel, it breaks down.
Katelyn doesn't accept breakdown. She demands a formula that matches her standard — clean energy without the crash, joint support built for the landing volume she absorbs, and mental fuel that keeps her locked in from the first rep to the final dismount.
How They Found 4D
"I tried every product on the market and they all had the same problem — jitters, a crash, or ingredients I couldn't trust. When I found 4D, it was the first time I felt genuinely fueled without any of the garbage. It just worked."
The Performance Formula
Why 4D Works for Katelyn
Every ingredient earns its place — because gymnastics demands every system firing at once.
Lock In Under Pressure
Beam routines leave zero margin for mental drift. A single lapse in concentration is the difference between a perfect score and a fall. 4D's nootropic stack — L-Theanine, Ginseng, and Tyrosine — sharpens neural firing and sustains focused attention even deep into a four-hour training block when mental fatigue is at its worst.
Lock In Under Pressure
Beam routines leave zero margin for mental drift. A single lapse in concentration is the difference between a perfect score and a fall. 4D's nootropic stack — L-Theanine, Ginseng, and Tyrosine — sharpens neural firing and sustains focused attention even deep into a four-hour training block when mental fatigue is at its worst.
Sustain the Surge
Vault. Tumbling passes. Conditioning circuits. Each explosive movement demands maximum muscular output with minimal recovery windows between repetitions. 4D's amino acid system — BCAAs, Glutamine, and L-Carnitine — fuels protein synthesis in real time, reduces muscle fatigue, and ensures her output stays maximal from the first practice to the last.
Built for the Landing
Every landing Katelyn absorbs transfers thousands of pounds of force through her wrists, knees, and ankles. Over a full season, that accumulates into serious structural stress. 4D's joint matrix — Glucosamine, Bromelain, and Vitamin D — actively lubricates connective tissue, reduces systemic inflammation, and builds the structural resilience that lets her keep landing hard without breaking down.
Recover Without Crashing
A four-hour gymnastics practice sweats out more than water. Electrolytes, micronutrients, and cellular hydration all deplete — and standard energy drinks replace none of it. 4D's full electrolyte and vitamin matrix replenishes what training strips away, so Katelyn wakes up ready to go again instead of grinding through residual fatigue.
Katelyn's Collection
Train With What She Uses
Katelyn's Go-To: Peach Tea
Her daily training flavor — clean energy, full electrolytes, and the mental focus formula she relies on every session. Zero sugar. Zero calories. Zero crash.
"I trained for over fifteen years on products that promised everything and delivered nothing but a crash. 4D is the first formula that actually keeps pace with what gymnastics demands — clean energy that lasts, focus that doesn't fade, and zero ingredients I can't stand behind. I won't train without it."
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