Optimise VO₂ Max · Sustain Power · Delay Fatigue

Stamox Oxy-Plus — Premium Beetroot Extract

Boost VO₂ max, endurance, and power within 2–3 hours. Lowers the oxygen cost of every effort — so you breathe easier, push harder, and hold your pace longer.
Optimises oxygen at the cellular level — your mitochondria produce more ATP with less oxygen. Standardised beetroot matrix for measurable, consistent results — unlike regular beetroot juice. No stimulants, no crash. Benefits compound with consistent use. Developed in Norway, trusted by Olympians since 2007.

Verified Quality Standards

19 Years
Research
Anti-Doping
Tested
Formulated
In Norway

200 Grams Per Tub

40 Cardiovascular Servings

1/2 tbsp daily for health, energy, & circulation.

20 High-Performance Doses

1 tbsp pre-workout for a measurable 3–5% O₂ saving per session.

"Been using Stamox for a year. Took 2 tbsp daily for 5 days before winning Ironman South Africa AG. "

— GILBERTO NEIROTTI, IRONMAN AG CHAMPION

"I’ve found the missing link in my running. 166 bpm on 3:03/km reps — the data doesn’t lie. "

— CONNOR ROGERS, 5K 14:27 · 10K 30:29

Optimises how your body utilises oxygen for peak efficiency. Lowers threshold heart rate and improves threshold pacing.

Maintain target wattage deep into efforts. Natural betaine sustains cellular hydration and power output while delaying muscle burnout.

A pure, clean, whole-food matrix that delivers high-performance nitrates with zero GI distress or stomach cramping.

Unique betalain antioxidants neutralise oxidative stress and clear metabolic waste before your session even ends.

ATHLETE DATA // USER METRICS

Proven By Athletes. Backed By Data.

Arvid Johannesen Log
-8 BPM
LOWER THRESHOLD HEART RATE
LOG // ARVID J. // NORDIC CYCLIST CHAMP

-8 BPM Threshold Strain

"Stamox has a massive impact on my aerobic efficiency. I can maintain a 380-watt threshold at just 145 bpm, saving vital energy when it matters most."

Arvid Johannesen | Nordic Champion Cyclist
Thomas Elholm Log
+4.5
VO₂ MAX INCREASE (4 MO)
LOG // THOMAS E. // X2 NATIONAL ROWER CHAMP

VO₂ Max 72.1 → 76.6

"Stamox’s impact on my VO₂ max is undeniable. My increase from 72.1 to 76.6 in just four months is highly unlikely through training alone."

Thomas Elholm | x2 National Champion Rower
Jack Billyard Performance Log
+2.6%
POWER OUTPUT JUMP
LOG // JACK B. // ULTRA DISTANCE RECORD HOLDER

+2.6% Threshold Elevation

"I re-tested my 12-minute max and saw a 2.6% increase from 448W to 460W—a serious performance jump. Testing also showed near-zero heart rate drift as fatigue set in."

Jack Billyard | Gravel Cyclist & FKT Holder

Trusted by the Best 

Athletes running on track, highlighting stamina supported by stamox beetroot powder

Backed by the World's Top Research

"Dietary nitrate reduces the O₂ cost of exercise and extends time‑to‑exhaustion by up to 16%."

— Prof. Andrew Jones, University of Exeter (Bailey et al., 2009)
3–5%

Lower O₂ cost at the same pace.

AIS Group A

Highest evidence tier for sports supplements.

200+

Peer-reviewed human performance studies on nitrate & beetroot.

Our Story

Smiling man outdoors with Utrecht University and University of Applied Sciences Upper Austria logos, stamox beetroot powder

Dr. Nils Reither, DVM
Veterinarian · Utrecht, 1990 · 36 years in industry

Endurance athletes are always chasing oxygen economy. In 2007, that chase led veterinarian Dr. Nils Reither to a humble beetroot extract that measurably improved oxygen utilisation in Norwegian rowers and cyclists. The data was so clear it demanded a product be built.

Independently tested. Free of banned substances. Trusted by Olympians, WorldTour cyclists, and Ironman champions world wide for 19 years. From Norway, for elite performance.

How Stamox Works

Acute oxygen economy in 2–3 hours. Full nitrate loading in 3–7 days. Mitochondrial efficiency in 2–4 weeks. Triple‑action matrix: Nitrates · Betaine · Betalains.
Stamox beetroot powder comparison chart vs beetroot pills, generic powder, and juice highlighting superior nutrient dose, results, patented extraction, and anti-doping testing.
" "

How to Use

Start fuelling with intention, and watch your data shift.

05 / Critical Constraint

Avoid mouthwash, tongue scraping, and breath mints — they kill the bacteria that convert nitrates into nitric oxide. Brush with regular toothpaste only. Sugar-free gum is fine.

Stamox beetroot powder session intensity guide: dosage & timing for recovery, moderate, hard, and race day use
3 Rules That Separate The Pack

1. Test in training—never debut on race day.
2. Let the data talk—log HR, power, RPE.
3. Save it for the work—Stamox is a multiplier for key sessions and blocks. Offload, then reload.

Training & Race-Day Protocols

Copy a proven plan. See what’s possible.

Real-World Testing

Individual results may vary. These are self-reported or case study data; not guaranteed for all users.

Key Independent Research

Independent research on beetroot — none sponsored by Stamox.

Team Stamox

FAQ

You would have to drink a lot of "regular" beetroot juice to achieve a good effect, and the amount you need to drink will vary enormously.

Raw beetroots and commercial juices vary wildly in active nitrate density depending on soil, season, and processing. Because their potency is never standardized or verified, your performance results will be unpredictable.

Furthermore, hitting the clinical threshold required for athletic performance via raw juice requires a massive fluid intake, often causing gastrointestinal (GI) distress before a workout.

Stamox eliminates the guesswork and the fluid load. Our extraction process delivers a precise, standardized dose of active nitrates in every scoop—guaranteeing consistent, predictable oxygen efficiency every time you train.

Stamox has a much lighter consistency and a milder, slightly sweeter flavor than standard, heavy beet powders.

For the smoothest mix, pour your water into the glass first, add the powder, let it sit for 2 minutes, and then stir (or use a handheld frother).

Taste Tip: If you want to mask the natural earthy undertones, mix Stamox with citrus juice (like lemon or orange) or blend it into your favorite fruit smoothie.

Yes, consistent daily use triggers permanent structural upgrades.

While a pre-workout dose provides immediate oxygen efficiency, daily dosing over 3+ weeks promotes mitochondrial biogenesis—meaning your body structurally builds brand-new cellular power plants to increase long-term training capacity.

The nitrate content in Stamox ranges from 1.3% to 1.7%, averaging 1.5% with a +/- 0.2% variance.

That means you're getting around 300 mg of nitrate in just two tablespoons.

However, it's crucial to understand that nitrate is only one component contributing to Stamox's unique benefits. You won't get the same results by simply taking nitrates on their own.

The true power of Stamox comes from the synergistic blend of nitrates, antioxidants and its other natural compounds working together.

  • Premium Beetroot: Sourced from the highest quality red beetroot.
  • Patented & Potent: A unique extraction ensures a stable, reliable strength in every batch.
  • Nutrient-Preserving: Processed to lock in essential micronutrients.
  • Pleasant & Versatile: A fine powder with a fresh taste for easy dosing.

Do not panic! This is a completely harmless condition called beeturia. It happens because Stamox is highly concentrated and rich in betalains—the vibrant, natural pigments found in beetroot that give it its powerful antioxidant properties. It is temporarily passing through your system and is 100% safe.

Pure red beetroot extract (Beta Vulgaris) and a trace amount of maltodextrin strictly as a technical anti-caking agent.

This is to prevent our highly concentrated active powder from absorbing airborne moisture and turning into a solid block. Stamox contains zero artificial fillers, zero sweeteners, and is anti-doping tested.

It sounds strange, but the magic actually starts on your tongue! The natural conversion of dietary nitrates into nitric oxide relies heavily on the beneficial bacteria in your mouth. Using antibacterial mouthwash or aggressive spitting within 30 minutes of taking Stamox can kill these bacteria, drastically reducing the supplement's effectiveness.