“Cellular energy that holds through the second half.” A PGA Pro's daily base.
Performance is decided in the second half. One capsule with breakfast: 300 mg NR + 50 mg Vitamin C, taken consistently so cellular NAD+ rebuilds in the background.
What it actually feels like on a long day.
With CELL FUEL™ in my morning routine, I notice it most in the second half of long days — mid-session, late in training, or out on the course. The usual dip isn't there.
One capsule with breakfast. 300 mg NR plus 50 mg Vitamin C. The lift is slow and sustained — it doesn't spike, doesn't crash.
Two bio-active ingredients. One daily capsule.
Engineered for cellular energy that lasts — not a quick lift. Powered by ABSORPTIX® Technology.
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NR (Nicotinamide Riboside)NAD+ precursor · cellular energy300 mg
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Vitamin CCellular protection · recovery support*50 mg
One capsule with breakfast. Builds cellular NAD+ over time — the slow, sustained energy you feel deep into long sessions and the day after.
*Approved EFSA health claims. All values per daily serving (one capsule).
Why a daily capsule changed how I finish long days.
If you take one thing from this page, take CELL FUEL™.
“One capsule with breakfast, every day. No spike, no comedown, no thinking about it. The result shows up where it matters — mid-session, late in training, deep into a long day.”
Real results, verified reviews.
“Four weeks in on CELL FUEL™ and the difference shows up where you'd expect: late in long sessions, end of the working day. Morning energy is more even too.”
“Took CELL FUEL™ for six weeks before a multi-day competition. The big difference was the second half of day two — tempo held, decision-making stayed clean.”
“One capsule with breakfast, every day. Recovery between sessions is noticeably faster and I'm sleeping better. It just works in the background.”
What CELL FUEL™ looks like in a long day.
The story isn't a 3-step ritual — it's one capsule with breakfast, and what happens hours later when the day gets long. Below is a snapshot from Olivier's daily kit on a tournament day.
One capsule. One pouch. 30 days.
Olivier keeps CELL FUEL™ next to his coffee setup. One pouch per month, refilled by subscription. Nothing to remember, nothing to mix.
“CELL FUEL™ isn't a moment. It's a routine. One capsule, every morning. The proof shows up in the second half.”
Performance you can feel.
Based on user-reported outcomes.
Eight clinicians who sign off before any product ships.
Every BRONN formula is reviewed by the medical and scientific panel. Sports physicians, an oncologist, pharmacists, an aesthetic physician, a facial surgeon — their names are on this page because they stand behind the science.
Common questions about BRONN supplements.
What is NAD+ and why does it matter for athletic performance? +
NAD+ is a coenzyme present in every cell — essential for cellular energy, DNA repair, and recovery. As we age, NAD+ levels decline, contributing to slower recovery and the dip athletes feel in the second half of long sessions. BRONN uses NR (nicotinamide riboside), a smaller precursor the body converts into NAD+ at the cellular level.
What is Absorptix® and how is it different from standard supplements? +
Absorptix® is BRONN's proprietary delivery protocol designed to address the six barriers between swallowing a supplement and cellular uptake. Instead of selling NAD+ directly (too large to absorb efficiently), BRONN uses NR with smart formulation, bio-active ingredients, and gastric acid protection to ensure nutrients reach the cellular level.
How does the subscription work and can I cancel? +
All supplements are available as a monthly subscription at 15% off with free shipping. You can swap, adjust quantities, or skip a month at any time. Cancellation is available after month two.
How and when should I take CELL FUEL™? +
One capsule every morning with breakfast. Consistency is the whole point — the formula (300 mg NR + 50 mg Vitamin C) builds cellular NAD+ over time. Stick with it for at least 4–6 weeks to feel the full effect.
How long before I feel the difference? +
CELL FUEL™ builds gradually. Most users report initial improvements in morning energy within 1–2 weeks. The strongest difference is noticed in the second half of long sessions around weeks 4–6.
Are BRONN supplements safe and officially registered? +
Every BRONN supplement is NUT-registered with the Belgian FPS Health. Each formula is reviewed by our panel of eight clinicians, including a pharmacist who gives the final sign-off.
Start with CELL FUEL™ today.
300 mg NR + 50 mg Vitamin C in one daily capsule. Absorptix® delivery. NUT-registered. Subscribe and save 15%, or try it once.
- ✓ 1 × CELL FUEL™ pouch (30 capsules) every month
- ✓ Save 15% on every delivery
- ✓ Free shipping · cancel after month two
- ✓ Skip a month or swap anytime
- ✓ 1 × CELL FUEL™ pouch (30 capsules)
- ✓ No subscription · no recurring charge
- ✓ One delivery, ready to start
- ✓ Switch to subscription anytime
This package: NUT-registered · reviewed by the BRONN expert panel · Absorptix® delivery. Subscription saves 15% and ships free every month.
