Developed in Norway and trusted by Olympians, WorldTour cyclists, and Ironman champions since 2007. Stamox lowers the oxygen cost of high-intensity efforts—allowing you to breathe easier, push harder, and hold your target pace longer.
Peak performance benefits 2-3 hours after drinking. Adaptational benefits compound over a 12-week cycle. No synthetic stimulants. No jitters. No crash. Just clean, predictable endurance.
Unlike ordinary beetroot juice, every scoop of Stamox delivers a precise dose of nitrates, betaine, and betalains — the full synergistic matrix used in performance studies.
Verified Quality Standards
19 Years R&D
Anti-Doping Tested
Formulated In Norway
200 Grams Per Tub
40 Cardiovascular Servings
20 High-Performance Doses
"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
Stamox lowers the oxygen cost of exercise, allowing you to breathe easier and protect your target pace.
Extend your time-to-exhaustion and help you sustain peak threshold power longer.
Easy on the stomach. No GI distress. A pure, clean, whole-food matrix.
Active betalains maximise blood flow to rapidly flush metabolic waste and drastically reduce post-workout muscle soreness.
Stamox Oxy-Plus — Premium Beetroot Extract
Regular price174,00 PLNSale price174,00 PLN
Stamox Oxy-Plus — Premium Beetroot Extract
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Trusted by the Best
Mathis Desloges
x3 Silver Medals at the 2026 Winter Olympics
"Stamox has been a cornerstone of my Olympic preparation."
Jente Michels
x2 European Champion, Alpecin‑Deceuninck
“The purest beetroot powder on the market. Boosted my power and VO₂ max - helping me become U23 European Champion”
Sophie Souwer
x2 World Champion, x2 Olympian, x3 European Champion
"My lactate threshold jumped from 82% to 88%—allowing me to sustain high-power outputs significantly longer"
Maicol Petta
AG Ironman Champion
"My heart rate is 5 to 6 bpm lower at the same pace with Stamox. Same intensity, less strain."
ATHLETE DATA // USER METRICS
Elite Performance Data
-8 BPM
LOWER THRESHOLD HEART RATE
ARVID J.NORDIC CYCLIST CHAMP
+4.5
VO₂ MAX INCREASE (4 MO)
THOMAS E.X2 NATIONAL ROWER CHAMP
+2.6%
POWER OUTPUT JUMP
JACK B.ULTRA DISTANCE RECORD HOLDER
Independent Clinical Evidence
"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 target pace.
IOC Level A
One of only five supplements with the highest evidence rating (International Olympic Committee, 2018).
180+
Peer-reviewed human performance trials.
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Our Story
Dr. Nils Reither, DVM — Utrecht, 1990 · 36 years in industry
In 2007, Dr. Reither created the foundational Stamox matrix. Since then, it has been validated by 19 years of elite use, ongoing R&D with the University of Applied Sciences Upper Austria, and independent anti‑doping testing.
From Norway, for human performance.
How It Works
Stamox optimises how your body uses oxygen at the cellular level. Effects peak 2–3 hours after consuming.
Dietary nitrates convert to Nitric Oxide. Blood vessels relax, lowering vascular resistance and priming your cardiovascular system.
Vasodilation peaks. Highly oxygenated blood is shunted directly to working muscles.
You hold target wattage while burning less oxygen. Natural betaine pulls water into muscle cells, sustaining power output deep into efforts.
Betalains – beetroot’s unique antioxidants – enter circulation. They neutralise oxidative stress and clear metabolic waste, kick‑starting recovery before the session ends.
Consistent use promotes mitochondrial efficiency and up‑regulates biogenesis pathways. Fitter, more oxygen‑efficient, more resilient muscles. No stimulants. No crash.
Standardised. Measurable. No guesswork.
Unlike ordinary beetroot juice, Stamox delivers a standardised, measurable dose of the full beetroot matrix – nitrates, betaine, and betalains. Every scoop is consistent, so your training results are predictable. No fluid overload. No guesswork.
Beetroot is one of only five supplements with IOC Level A and AIS Group A classification – the highest evidence tier in sport, alongside caffeine and creatine.
How to Use
01 / Baseline Dose
Mix 1 tablespoon into 500ml of water 2–3 hours before training to optimise daily oxygen economy.
02 / Racing Protocol
Mix 2–3 tablespoons on race days or during peak intensity blocks to sustain target threshold wattage.
03 / Versatile Mix
Completely free of synthetic flavorings. Blend into water, electrolytes, juice, smoothies, or your existing pre-workout stack.
04 / Bio-Activation
Add a squeeze of lemon or lime. Natural citric acid can accelerate cellular uptake.
04 / Critical Constraint
Avoid mouthwash, tongue scraping, and breath mints — they kill the bacteria that convert nitrates into nitric oxide.
Hamza Saeed
Performance Coach
"The best product I’ve ever tried. Stamox delivers serious performance benefits while keeping my GI completely happy. A total game changer."
MarcoValerio Ciminelli
Italian Cyclist
"Significantly better than other beetroot powders. Stamox has a much lighter taste, dissolves easily, and is easy to digest—unlike heavy, high-fiber formulas that mess with your pre-workout."
Training & Race-Day Protocols
Copy a proven plan. See what’s possible.
Yohan Zaradzki
Belgian Marathon Champion 2:12 Marathon · 62:31 Half
"My VO₂ Max went from 72.1 → 76.6 in 4 months. Such a jump is highly unlikely through training alone."
Arvid Johannesen
Norwegian & Nordic Champion Cyclist
“I can sustain a 380-watt threshold at a lower heart rate: 145 bpm with Stamox vs. 153 bpm without."
Rolf Solheimdal Johansen
Multiple World Champion in Triathlon
"Since integrating Stamox, I’ve hit multiple new PBs. It gives me that extra gear—more explosive leg power and the sustained energy I need."
Håvard Haukenes
2x Olympian
"I continued using Stamox on the road to the Olympics - increasing oxygen, blood flow, endurance and focus".
Christoff Van Heerden
National Road Cycling Champion
"When I'm training threshold, I go longer and faster. No other supplement has worked for me, except Stamox."
Mitchell Mulhern
World Champion Team Pursuit
"30‑Minute Power PB with Stamox. Then another PB the following week."
Lars Rørbakken
Strongman and Arm Wrestler
"I've used Stamox daily for over 10 years. I get tested regularly and can trust Stamox 100% on its quality standards."
Ole-Kristian Kvanli
2x Norway Cup Biathlete Champion
“Stamox helped lift me to a new PB on my VO2 test"
FAQ
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.
Stamox has a slightly sweet and earthy flavour.
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.
You can easily mix Stamox with water, in juice, in a smoothie or in youghurt.
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).
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.
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.
Local Shipping
Ships from EU, UK & Norway. Tracked, zero customs.
Performance Guarantee
12 weeks to a measurable HR drop or longer output—or your money back.
Personal Protocol Support
Race or protocol question? We help you dial it in. Email us at eirin@stamox.com.
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