Citrulline
L-Citrulline
ENDURANCE BOOSTER & BLOOD FLOW OPTIMIZER
L-Citrulline is an amino acid that converts to arginine in the kidneys, providing a sustained boost to nitric oxide production. It enhances exercise endurance, power output, and recovery while supporting cardiovascular health.
30-day supply
Key Benefits
Boosts nitric oxide for improved blood flow
Enhances exercise endurance and power output
Supports post-exercise recovery
Promotes cardiovascular health
Supports These Goals
Why you'll love it
Here's a counterintuitive fact: if you want to raise your arginine levels and boost nitric oxide, taking citrulline is actually more effective than taking arginine itself. That's because citrulline bypasses liver metabolism and converts to arginine in the kidneys, resulting in a more sustained and reliable increase in circulating arginine and nitric oxide.
The performance benefits are well-documented. Studies show citrulline supplementation increases time to exhaustion during high-intensity exercise, improves power output, and reduces the perception of effort — meaning the same workout feels easier. It also accelerates the clearance of ammonia and lactate, metabolic byproducts that contribute to fatigue and muscle burn.
Beyond the gym, citrulline supports cardiovascular health through its nitric oxide-boosting effects. Better blood flow means better nutrient delivery, waste removal, and vascular function. It's one of the most evidence-backed ergogenic supplements available, and it works for both strength and endurance athletes.
Clinical Evidence
Our recommendations are grounded in published clinical research. Here are key studies supporting the benefits of Citrulline.
L-citrulline significantly lowers systolic blood pressure
Effects of L-citrulline supplementation on blood pressure: a systematic review and meta-analysis
2019
Citrulline boosts aerobic performance and lowers perceived effort
Effects of citrulline supplementation on different aerobic exercise performance outcomes: a systematic review and meta-analysis
2022
Study titles shown are simplified summaries of the original research for readability. Original titles are shown in italics below each heading. All studies cited are from peer-reviewed journals indexed in PubMed. Links open in a new tab to the original source. These studies are provided for informational purposes and do not constitute medical advice.
How much do I really need?
Take one 500mg capsule daily. For exercise performance, take 45-60 minutes before training. Citrulline can be taken on an empty stomach and is well-tolerated. For enhanced effects, it pairs well with arginine.
Safety & Transparency
Full transparency — here's exactly what's in every capsule, verified by our manufacturer.
Third-Party Tested
Every batch is independently tested by ISO-17025 accredited labs for purity, potency, and contaminants.
Doctor Formulated
Designed by healthcare professionals using evidence-based research and clinical expertise.
cGMP Certified
Manufactured in cGMP & UL certified, FDA-registered facilities with a flawless inspection record.
Important Information
Contraindications:
- •blood pressure medication
If you take blood pressure medication, consult your healthcare provider before use.
As with any natural health product, you should consult your healthcare practitioner on the use of this product. Store product in a cool and dry place. Keep out of reach of children. If you experience an adverse event or allergic reaction, discontinue use immediately and contact a healthcare professional.
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