Experience uncompromised vascularity and performance with NutraBio L-Citrulline. Unlike many pump products on the market that use Citrulline Malate (a mixture of citrulline and malic acid), NutraBio provides 100% pure, unadulterated L-Citrulline. This ensures you are getting a maximum, high-yield dose of the active amino acid per scoop.

L-Citrulline is scientifically proven to bypass the liver and be converted by the kidneys into arginine, making it far more efficient at raising blood arginine and nitric oxide levels than supplementing with arginine itself.

The Pure L-Citrulline Advantage:

• Skin-Splitting Muscle Pumps: Drives nitric oxide synthesis to expand blood vessels, delivering a massive surge of blood, oxygen, and critical nutrients directly to your working muscles.

• Boost Training Volume & Stamina: Optimizes ATP production and cellular energy pathways, helping you squeeze out more reps and sets before reaching failure.

• Crush Muscle Soreness: Plays a vital role in the urea cycle by helping to clear away metabolic waste products, such as ammonia and lactic acid, keeping your muscles fresher during and after training.

• 100% Pure Powder: Zero malic acid fillers, zero flavorings, and zero sweeteners. It is completely unflavored and dissolves perfectly into any pre-workout, intra-workout aminos, or pump stack.

• The NutraBio Quality Promise: Absolutely no proprietary blends, no excipients, and no hidden ingredients—just pure, laboratory-tested L-Citrulline.

For a comprehensive clinical look at how pure L-Citrulline supplementation improves nitric oxide availability and exercise performance: Acute L-Citrulline Supplementation Enhances Nitric Oxide Bioavailability and Athletic Performance - Journal of the International Society of Sports Nutrition