Muscle Empire

L-Citrulline Powder

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  • L-Citrulline Powder
  • L-Citrulline Powder
  • L-Citrulline Powder
  • L-Citrulline Powder
  • L-Citrulline Powder



What is L-Citrulline?
L-Citrulline is a nonessential amino acid produced by the body that provides the following benefits, prolonged muscle protein synthesis, muscle growth, and recovery after training. The advantages afforded are a result of elevated blood arginine levels, which yield higher Nitric Oxide (NO) production, muscle protein synthesis, and faster recovery time. The process in which Citrulline is useful for is the reduction of fatigue during training. Citrulline is produced when the combination of Ornithine and Carbamoyl Phosphate come together. This pairing occurs when your body removes nitrogen waste during the urea cycle. Supplementing Citrulline is believed to put the urea cycle in overdrive, allowing it to take in more ammonia, which is composed of nitrogen molecules, nitrogen molecules produced by working muscles. This, in combination, reduces the fatigue caused by muscles at the source.

Potential Benefits may Include:

  • Promotes muscle protein synthesis
  • Supports Nitric Oxide production
  • Promotes muscle mass

How Does L-Citrulline Work?
The excess of Citrulline triggers a more substantial effect of arginine conversion into Nitric Oxide or NO. The increase in Arginine in the blood yields an increase in Nitric Oxide production. The uptake of Nitric Oxide increases blood flow during exercise and allows for muscles to perform for a longer duration when working out, which gives weightlifters the ability to produce bigger muscle pumps. The mechanisms of Citrulline during exercise provides more benefits outside of increasing blood arginine levels; it offers an array of benefits, including increased protein synthesis, creatine synthesis, and more efficient BCAA utilization by muscles during exercise. Supplementing with Citrulline has become more favorable over supplementing with Arginine, as studies indicate that Citrulline is more effective at increasing plasma arginine levels in the body.

Consider This:
Try pairing with our Whey Protein to build an effective stack for muscle production.  


Directions & Allergens

Suggested Use: 
As a dietary supplement, take 3 rounded scoops (~3 grams) and mix with 8 - 12 ounces of water or suitable beverage. Taken 30 minutes prior to exercise and again immediately after for maximum results.

This product contains no Soy, Dairy, Dairy byproducts, Eggs, Fish, Shellfish, Wheat, Gluten, Tree Nuts, or Sesame Seeds.

This is a NON-GMO ingredient manufactured using organic starting ingredients.

Store in a cool, dry place. Keep away from direct sunlight and heat.

Instant COA 

Another HR Supplements exclusive is the “Instant COA” (Certificate of Analysis). We have built a customer facing interface that will allow you to view product COA's on any mobile device. Simply scan the Quick Response (QR) code on the HR Supplements product label and instantly view the lab reports. Please click here to request a copy of archived COA's.  


Statements & Warnings †

† These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any diseases.

Keep out of the reach of children. Do not take this or any other supplement if under the age of 18, pregnant or nursing a baby, or if you have any known or suspected medical conditions and/or taking prescription drug(s) or OTC medication(s). Always consult with a qualified health physician before taking any new dietary supplement.

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7 Reviews

  • 3
    Got it on a good deal

    Posted by Valentin Molina on 15th Oct 2020

    My last order of citrulline had a unique smell to it, this one didn’t and looks a little fluffier. This one doesn’t feel as potent as my recent purchase which with one scoop I can feel a difference . Good thing I got it 50% off

  • 5

    Posted by Alan B on 17th Mar 2018

    Fast Shipping and great prices!

  • 5
    It helps with my blood

    Posted by Robert M on 9th Nov 2017

    I tried this product to help. It helps.

  • 5
    Great quality !

    Posted by Alan on 6th Mar 2016

    I always look for supplements that are non-GMO, non-soy etc., and this is one of those products. Excellent quality and this helps me get and maintain great erections. Just like taking an hour or two before a workout, the same rule applies to sex. I can perform all night.

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