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Muscle pump support; Blood flow and circulation support; Pre-workout nitric oxide support; Stimulant-free option
Adults seeking a stim-free pre-workout option or aiming for pump-focused training sessions.
Adults take 1 serving (3 caplets) with a glass of water once daily; on workout days, take 30 to 45 minutes before exercise, and on non-workout days, take in the morning. Intermediate athletes up to 200 lb may use 4 caplets per serving, and over 200 lb may use 5 caplets per serving. Taking with water and spacing from large meals may improve tolerance.
Processed in a facility that also processes milk, wheat, egg, fish, peanuts, crustaceans, shellfish, tree nuts, soy, and sesame. Contains bioengineered food ingredients.
L-arginine is a substrate for nitric oxide synthase, which may increase nitric oxide production to relax blood vessels and support blood flow to working muscles.
Caution: May interact with blood pressure or erectile dysfunction medications because it can affect nitric oxide and vascular tone; start with the suggested serving to assess tolerance.
Arginine provides nitric oxide substrate while alpha-ketoglutarate participates in the Krebs cycle, which together may support nitric oxide availability and metabolic flux during exercise.
Caution: May cause gastrointestinal discomfort in some people; taking with water and not on an empty stomach can help.
Provides a soluble form of arginine that may raise circulating arginine levels to support nitric oxide formation and vasodilation.
Caution: Those with low blood pressure should use caution because increased nitric oxide may further lower blood pressure.
L-citrulline is converted to arginine in the kidneys, which may sustain nitric oxide production and support blood flow and exercise performance.
Caution: High amounts may cause stomach upset; adequate hydration may improve tolerance.
Arginine directly feeds nitric oxide production for vascular relaxation, while citrulline can replenish arginine to extend nitric oxide availability. Alpha-ketoglutarate supports energy metabolism, and the hydrochloride form enhances arginine solubility to help absorption.
Label Warning: For adult use only and for healthy individuals. Do not use if pregnant or nursing, or if you have had a heart attack. Stop use and consult a doctor if you experience unusual symptoms. Consult a doctor if you have a medical condition or before starting any diet or exercise program. Do not refrigerate.
Who should be cautious: People with cardiovascular concerns, low blood pressure, or those taking blood pressure medications may need caution due to arginine and citrulline’s vasodilatory effects. Individuals sensitive to artificial colors or sweeteners may also wish to review the inactive ingredients. Those with allergies to common food allergens should note it is processed in a facility with milk, wheat, egg, fish, peanuts, crustaceans, shellfish, tree nuts, soy, and sesame.
Storage: Store in a cool, dry place at 60°F to 80°F.
Many users mention better muscle pumps and improved workout performance.
Customers who avoid caffeine like that it is stim-free and still supports workouts.
Some find the caplets big and the red coating bothersome when swallowing.
This product is guaranteed authentic and backed by our easy returns & refunds policy. Details
BCAAs may help reduce muscle soreness and support recovery, making them a great addition to a pre-workout routine for enhanced performance and endurance.
AI generated. Not medical advice.
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Get Pumped With This Pre-Workout
Six Star® Pre-Workout N.O. Fury® is formulated with a nitric oxide matrix engineered to deliver better muscle pumps and increased muscle hardness after your very first dose. Take this non-stim pre-workout fuel for massive muscle pumps.
Product Stack
N.O. Fury® is perfect stim-free pre-workout to pump up your game.
Take 1 serving (3 caplets) with a glass of water once a day. On days you work out. take your serving 30 to 45 minutes before your workout. On days you don't work out, take your serving in the morning. Beginners should start with 3 caplets per serving. Advanced and intermediate athletes should follow the dosing protocol below. Read the entire label before use and follow directions provided.
| Intermediate and Advanced Athletes' Dosage Protocol | |
| Up to 200 lbs. | Over 200 lbs |
| Take 4 Caplets per Serving | Take 5 Caplets per Serving |
Microcrystalline cellulose, croscarmellose sodium, stearic acid, coating (polyethylene glycol, FD&c red no. 40 lake, talc, titanium dioxide), crospovidone, sodium citrate, magnesium stearate, silicon dioxide, acesulfame-potassium.
Processed in a facility that also processes milk, wheat, egg, fish, peanuts, crustaceans, shellfish, tree nuts, soy and sesame.
Contains bioengineered food ingredients.
Made in the U.S.A. from international ingredients.
For adult use only. For use by healthy individuals only. Do not use if pregnant or nursing. Do not use if you have had a myocardial infarction (heart attack). Discontinue use and consult a medical doctor if you experience unusual symptoms. Consult a medical doctor if you have a medical condition or before starting any diet or exercise ( program. Do not refrigerate. Keep out of reach of children.
Do not use if packaging has been tampered with.
Store in a cool, dry place (60ºF to 80ºF).
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
| Supplement facts | ||
| Serving Size: 3 Caplets | ||
| Servings Per Container: 20 | ||
| Amount Per Serving | % Daily Value | |
| Total Carbohydrate | 1 g | <1% * |
| Sodium | 5 mg | <1% |
| Nitric Oxide Matrix | 3,000 mg | † |
| L-arginine | ||
| L-arginine alpha-ketoglutarate | ||
| L-arginine HCl | ||
| L-citrulline | ||
| * Percent Daily Values are based on a 2,000 calorie diet. † Daily Value not established. | ||
