“Cellular energy. The edge you can feel when it matters most.” A PGA Pro's take on cellular performance.
Performance is decided in the second half. Long sessions, late stages, every rep or shot under pressure. What separates a strong finish from a tired one is rarely talent — it's whether your cells still have fuel left to give.
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. Concentration holds. Tempo holds. I finish the way I started.
CELL BOOSTER™ is the on-demand piece. I take a shot 15–30 minutes before a session, training block, or competition. The 80 mg of caffeine is precision-dosed alongside L-Citrulline, Taurine, L-Carnitine and NR — clean focus, no crash. That's why both products are part of my daily kit.
Two products. Two roles. One cellular routine.
CELL FUEL™ is the daily base — a capsule every morning. CELL BOOSTER™ is the on-demand shot before training or competition. Every dose powered by ABSORPTIX® so what's on the label reaches your cells.
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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.
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L-CitrullineSystemic flow · nitric-oxide support2000 mg
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TaurinePairs with L-Citrulline for nutrient delivery1000 mg
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L-CarnitineTransports fatty acids into mitochondria for energy1000 mg
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NR (Nicotinamide Riboside)NAD+ precursor · cellular fuel150 mg
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Organic Magnesium (Citrate)Muscle function · reduces tiredness & fatigue*100 mg
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CaffeinePrecision dose for alertness & focus — no crash80 mg
One shot, 15–30 minutes before training or competition. A precision-dosed blend designed for clean focus and systemic flow.
*Approved EFSA health claims. All values per daily serving (1 capsule for CELL FUEL™, 1 shot for CELL BOOSTER™).
PGA Golf Pro
Olivier Withofs, PGA Golf Professional and BRONN ambassador. Uses CELL BOOSTER™ before training, competition, and high-focus sessions.
Why a PGA pro takes a longevity supplement.
If you take one thing from this page, take the CELL FUEL™ & CELL BOOSTER™ Bundle.
“CELL FUEL™ every morning, CELL BOOSTER™ before the session. One builds the cellular engine for the long game. The other gives me focus and blood flow on demand.”
Real results, verified reviews.
“CELL BOOSTER™ before a long training session is my new ritual. Focus stays sharper deeper into the work and I'm not hitting the wall after ninety minutes.”
“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. Best finish in three years.”
“I run the duo Olivier recommends. CELL FUEL™ in the morning, CELL BOOSTER™ before training. Recovery between sessions is noticeably faster.”
How Olivier uses CELL FUEL™ and CELL BOOSTER™.
One product builds the cellular engine in the background. The other turns it on when he needs it.
Morning · CELL FUEL™
One capsule every morning with breakfast. 300 mg NR plus Vitamin C, taken consistently.
Before play · CELL BOOSTER™
One liquid shot, 15–30 minutes before competition or a long training session. Clean focus, systemic flow.
The result
Second-half tempo that holds. Sharper concentration in the moments that matter. The routine becomes part of how Olivier prepares.
“CELL FUEL™ in the morning, CELL BOOSTER™ before the session. It's not a one-week magic trick — it's a routine.”
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 does Olivier's routine work — CELL FUEL™ and CELL BOOSTER™ together? +
CELL FUEL™ is the daily base: one capsule every morning. CELL BOOSTER™ is an on-demand liquid shot, taken 15–30 minutes before training, competition, or a high-focus moment. The pairing combines a slow build of cellular energy with a fast lift in focus when it matters.
How long before I feel the difference? +
CELL BOOSTER™ has an acute effect: most users notice improved focus within 15–30 minutes. CELL FUEL™ builds gradually — initial improvements in morning energy within the first weeks, strongest difference in the second half of long sessions.
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 your cellular routine today.
NR-based formulas. Absorptix® delivery. NUT-registered. Pick the duo as a monthly subscription (save 15%) or as a one-time bundle.
- ✓ 1 × CELL FUEL™ pouch (30 capsules)
- ✓ 1 × CELL BOOSTER™ 6-pack of shots
- ✓ Save 15% on every delivery
- ✓ Free shipping · cancel after month two
- ✓ 1 × CELL FUEL™ pouch (30 capsules)
- ✓ 1 × CELL BOOSTER™ 6-pack of shots
- ✓ No subscription · no recurring charge
- ✓ Ships in one delivery
Both packages: NUT-registered · reviewed by the BRONN expert panel · Absorptix® delivery. Subscription saves 15% and ships free every month.
Only want one of the two? Shop CELL FUEL™ or shop CELL BOOSTER™ separately on bronn.life.
