UP8 NITROX — Nitric Oxide Booster for Blood Flow, Pump & Stamina
Two capsules carrying a 1,500 mg nitric oxide complex: L-citrulline and three forms of L-arginine feeding the pathway, taurine and norvaline behind the pump, and tribulus, muira puama and Asian ginseng for stamina. Take them thirty minutes before you train. No stimulants, so nothing to crash from.
- Blood Flow You Notice In The First Set
- Oxygen Reaching The Muscle That Is Asking
- Stamina That Holds Past The Third Set
- Two Capsules. That Is The Whole Routine.Thirty minutes before you train, with water. No loading phase, no cycling schedule, no scoop to choke down, and no stimulant to crash off at 4pm.
Run it for 90 days the way it is meant to be run — two capsules, thirty minutes out, alongside your training. If your sets do not feel different and your recovery has not moved, email us and take the money back. Empty bottles included.
A nitric oxide formula lives or dies on one question: does it give the body enough substrate to work with. This one runs a 1,500 mg complex built on L-citrulline plus three arginine forms, which is the combination the research keeps coming back to, and it does not lean on stimulants to fake the feeling of working. Read the panel below and check it against whatever else you are considering.
See every dose60 vegetable capsules per bottle. Two a day, so 30 servings — exactly one month. The nitric oxide complex is 1,500 mg per serving, split across three named blends printed on the panel, plus 10 mg NE of niacin. Vegan, gluten free, non-GMO, free of the 9 major allergens.
See all product detailsA pre-workout gives you 300 mg of caffeine and calls the tingle a pump. A single-ingredient citrulline tub gives you one lever. This runs four nitric oxide precursors, three recovery actives and three stamina botanicals in one two-capsule serving, with no stimulant load and nothing to cycle off.
See the full comparisonPer 2 capsules: niacin 10 mg NE, plus a 1,500 mg Nitric Oxide Complex — L-citrulline, L-arginine AKG, L-arginine HCl and L-arginine base in the Boost Blend; L-taurine, L-norvaline and vanadyl sulfate in the Growth & Repair Blend; tribulus fruit, muira puama bark and Asian ginseng root in the Stamina Surge Blend.
See the ingredient listThe short version: two capsules thirty minutes before training, up to twice a day. No caffeine, so it stacks with your coffee or your pre-workout. Give it 6 to 10 weeks with real training behind it — this supports the work, it does not replace it.
Read the FAQAs seen in:
WHAT TO EXPECT: YOUR RESULTS TIMELINE
NITROX works on the supply line, not on your nervous system. L-citrulline and the three arginine forms feed the pathway your body uses to make nitric oxide, the signal that tells a blood vessel to relax and widen. A wider vessel carries more blood, and more blood means more oxygen and more nutrients arriving at the muscle that is currently asking for them.*
That is also why it does not hit like a stimulant. There is no jolt at minute twenty and no crash at hour four. What men report noticing is the third set instead of the first, and the next morning instead of the same evening. The honest window is 6 to 10 weeks of consistent use with training behind it.
DAY 7
The Warm-Up Gets Shorter
- The pump shows up earlier in the session
- You stop needing three sets to feel switched on
- Breathing settles faster between sets
- No jitters, because there is no stimulant in it
DAY 30
It Holds Through The Session
- The pump is still there on the last set, not just the first
- Recovery between sessions gets shorter
- Cardio at the same pace costs you less
- You stop reaching for a second pre-workout scoop
DAY 90
The New Baseline
- It stops feeling like something you took and starts feeling like how you train
- You are well past the 6 to 10 week research window
- The habit costs you ten seconds a day and you no longer think about it
WHY MEN CHOOSE NITROX
Four nitric oxide precursors, three recovery actives and three stamina botanicals — in a two-capsule serving with no stimulant load.
The whole nitric oxide complex is 1.5 g per serving and the number is printed on the panel. Plenty of bottles put a pinch of citrulline behind a proprietary label and let the picture on the front do the talking.
L-citrulline plus L-arginine AKG, HCl and base. Citrulline and arginine enter the pathway at different points, which is exactly why serious formulas run both instead of picking a side.
There is no caffeine here. That means you can take it before a 6am session or a 7pm one, stack it with your coffee, and never wonder whether the tingle was the formula or the 300 mg of caffeine.
Two capsules with water, thirty minutes out. No scoop, no shaker, no 40-minute pre-workout ritual. The best formula is the one you still take in week nine.
WHAT IS ACTUALLY IN THE BOTTLE
No survey percentages, no rounded-up claims — just the numbers printed on the panel.
NITROX IS RIGHT FOR YOU IF…
- Your pump shows up on set one and is gone by set three
- You want the blood flow without 300 mg of caffeine attached
- You train in the evening and stimulants cost you the night
- You are tired of pre-workouts that hide everything in a blend
- Recovery between sessions has been taking longer than it used to
- You want doses printed on the panel, not a picture of a bicep
- You have read enough labels to know citrulline alone is half the story
The Nitric Oxide Complex, Ingredient By Ingredient
L-Citrulline Boost Blend
L-Arginine Alpha Ketoglutarate Boost Blend
Tribulus Terrestris Stamina Surge
Asian Ginseng Stamina Surge
See the other 7 actives
L-Arginine HCl Boost Blend
L-Arginine (Base) Boost Blend
L-Taurine Growth & Repair
L-Norvaline Growth & Repair
Vanadyl Sulfate Growth & Repair
Muira Puama Stamina Surge
Niacin 10 mg NE
FREQUENTLY ASKED QUESTIONS
How fast will I feel it?
Some men feel the pump inside the first week — that is the blood flow side, and it is the fastest thing to notice. The parts that matter more, recovery and stamina, run on a 6 to 10 week window. If you are judging it on day three, judge it on the pump and give the rest until week six.
Is this a pre-workout? Does it have caffeine?
No caffeine, no stimulants of any kind. That is deliberate. It means you can take it before a 6am session or a 7pm one, and you can stack it with your coffee or your existing pre-workout without doubling up on anything.
Can I take it with my pre-workout?
Yes. There is no caffeine and no beta-alanine here, so there is nothing to double. Many men take NITROX thirty minutes out and their pre-workout at the door. If your pre-workout already has citrulline in it, you are simply getting more of the same precursor, not a different one.
How many do I take, and how long does a bottle last?
Two capsules, up to twice daily. At two a day, 60 capsules is 30 servings — exactly one month, so the reorder date is never a guess. If you run two servings on training days, the bottle goes faster and the 3-bottle option is the one that makes sense.
Why three different forms of arginine?
Because they behave differently. Arginine HCl, arginine AKG and free-base arginine do not absorb or clear on the same curve, and L-citrulline enters the pathway from another direction entirely. Running four precursors instead of one is the difference between a formula and an ingredient.
Will it help outside the gym?
It supports blood flow and circulation generally — the pathway does not know whether you are in a squat rack. It is a dietary supplement supporting normal circulatory function, not a treatment for any condition. If you are looking at it for a specific medical reason, that is a conversation with your doctor, not with a label.
Are there side effects?
At these doses most men have none. Arginine and citrulline can loosen the stomach in some people at first — taking them with a little food usually settles it. The niacin here is niacinamide, the non-flushing form, so there is no hot red face.
Can I take it if I am on medication?
Ask your physician first, and be specific about this one: nitric oxide precursors can add to the effect of nitrates, blood pressure medication and erectile dysfunction medication. That is not a formality — it is the single most important line on this page if you take any of those. Also stop use before surgery.
Can I take it every day, long term?
That is how it is designed to be used — daily, no cycling. There is no stimulant to build tolerance to. If you plan to run it past six months, a check-in with your physician is worth the ten minutes.
What if I do not train?
Then you will get less out of it. NITROX supports blood flow, oxygen delivery and recovery — all of which matter most when something is asking for them. It is built to work with cardio and weight training, not instead of it.
What if it does not work for me?
Take it for 90 days from the day it arrives. If nothing changed, email us and we refund the order — even if the bottles are empty. Keep them. We would rather you tell people we made it right than that we made it difficult.
Where is it made, and who should not take it?
Manufactured in the USA in a GMP-certified facility with globally sourced ingredients. Vegan capsule, gluten free, non-GMO, free of the 9 major allergens. Not for anyone under 18, and not for women who are pregnant or nursing.
*MEDICAL & HEALTH DISCLOSURE: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. NITROX is a dietary supplement that supports normal blood flow and circulation; it is not a treatment for erectile dysfunction, cardiovascular disease or any other medical condition. Nitric oxide precursors can add to the effect of nitrates, blood pressure medication and erectile dysfunction medication — speak to your physician before use if you take any of these, and stop use before surgery. Not for use by anyone under 18, or by women who are pregnant or nursing. Keep out of reach of children.