Prime Labs Prime Test L-Arginine black bottle with teal bull mascot, 1500mg L-Arginine, label reading energy, strength and endurance
Hand holding the Prime Labs L-Arginine bottle, graphic headline Boost your energy, strength and endurance with copy on blood flow and muscle pumps
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Prime Labs L-Arginine graphic, a man setting up a barbell deadlift in a gym, headline Elevate your athletic performance and endurance
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Supplement Facts panel on the back of the Prime Labs L-Arginine bottle listing 1500mg L-Arginine HCl per 2-capsule serving
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Increase Energy Wellness

L-Arginine

(91)

60 Capsules / 30 Servings / 30-Day Supply

Enhanced Blood Flow
1,500 mg L-Arginine HCl promotes vasodilation for improved circulation, bigger pumps, and better nutrient delivery.*
Endurance & Recovery
Supports endurance during workouts, reduces post-exercise soreness, and aids muscle repair between sessions.*
Cardiovascular Support
Helps maintain healthy blood pressure and heart function — a foundational amino acid for whole-body performance.*
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Supplement Facts for L-Arginine
Serving Size 2 Capsules
Servings Per Container 30 Servings
Nutrient Amount Per Serving % Daily Value
L-Arginine HCl 1500 mg **

Other Ingredients: Hypromellose (Veggie Capsule), Vegetable Stearate, Silicon Dioxide

** Daily Value not established.

3rd Party Tested Non-GMO No artificial ingredients Drug-Free

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L Arginine HCL: Supports cardiovascular health, enhances athletic performance, and promotes muscle growth and recovery*

L-Arginine HCl

Other Ingredients: Hypromellose (Veggie Capsule), Vegetable Stearate, Silicon Dioxide

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Why Choose Prime Labs

Total System Optimization. Our solutions maximize testosterone, boost stamina, fuel gains and improve recovery. Whether you are moving heavy weight or getting intimate, our goal is to ensure your body never fails a rep. No lag. No excuses. Just raw, calibrated power.

L-Arginine
 Others
Strength 1,500 mg L-Arginine HCl Typically 1,000 mg per serving
Form L-Arginine HCl L-Arginine or L-Arginine HCl
Questions?

We've Got The Answers

L-Arginine is the precursor to nitric oxide — the compound that widens blood vessels and drives oxygen and nutrients into working muscle. 1,500 mg per serving supports healthy circulation, endurance, muscle recovery, and cardiovascular health.* More blood flow. More output.
Same pathway, different entry point. Citrulline converts to arginine in the body; L-Arginine is the direct precursor. Many men run L-Arginine daily as a baseline and Blue Surge on training days for the acute pump.
Two capsules daily, preferably with food.
Yes. Better blood flow means better nutrient delivery to the muscle you just worked. L-Arginine supports muscle repair and helps reduce post-exercise soreness.*
Blood flow is blood flow. Nitric oxide support underpins both athletic and intimate performance — one system, two outputs.*
It's built to. Pair with Prime Test Pro or Tongkat Ali Plus for hormone support, and Tribulus for stamina. L-Arginine is one of the most stack-friendly SKUs in the line.
Yes. Veggie capsule with vegetable stearate and silicon dioxide. No animal ingredients.
Men taking blood-pressure medication, blood thinners, or medications for circulation or intimate performance, and anyone under a physician's care.

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