A bottle of NatureSpan® L-Arginine + L-Citrulline supplement capsules | NatureSpan®

L-Arginine + L-Citrulline

$49.99

Quantity:

Bottle Size: 60 Veggie Capsules

60 Veggie Capsules

Key Benefits

✔ Promotes nitric oxide production for vascular health*
✔ Enhances endurance and physical performance*
✔ Improves blood flow and circulation*
✔ Supports reproductive and sexual health*

Dual-Action Formula Endurance Support Nitric Oxide Booster Produced in USA

The NatureSpan® Difference

🛡️ Dual-Action Nitric Oxide Support

Combines L-Arginine for immediate nitric oxide production with L-Citrulline for sustained release, maximizing endurance and circulation benefits.

🛡️ Performance-Enhancing Formula

Scientifically supported amino acids improve oxygen and nutrient delivery to muscles, supporting stamina and recovery.

🛡️ Cardiovascular & Reproductive Health

Promotes healthy blood flow for heart wellness and reproductive function in both men and women.

🛡️ Pure, Allergen-Free Quality

Non-GMO, gluten-free, soy-free, and vegan capsules manufactured under FDA, GMP, and NSF standards.

Supplement Facts

NatureSpan® L-Arginine + L-Citrulline

Supplement Facts

Serving Size: 2 Capsules

Servings Per Container: 30

Amount Per Serving

%DV

L-Arginine

500 mg

†

L-Citrulline

500 mg

†

† Daily Value not established.

Other Ingredients: Hypromellose (vegetable capsule), microcrystalline cellulose, and magnesium stearate.

Non-GMO / Gluten-Free / Soy-Free / Vegetarian

Usage & Safety

Who It’s For: Ideal for individuals looking to enhance endurance, improve circulation, support cardiovascular wellness, or promote reproductive health.*

Who Should Avoid It: Not recommended for individuals taking medications for blood pressure, heart conditions, or erectile dysfunction without consulting a physician.*

Dosage: Take 2 capsules daily with meals or as directed by a healthcare professional.*

Bottle Supply: 60 capsules (1-month supply).*

Certified Quality: Manufactured in an FDA-registered, GMP and NSF-certified facility; Non-GMO, gluten-free, soy-free, vegan, and free from the eight major allergens for safety and purity.*

Scientific References

Rashid J, Kumar SS, Job KM, Liu X, Fike CD, Sherwin CMT. Therapeutic Potential of Citrulline as an Arginine Supplement: A Clinical Pharmacology Review. Pediatr Drugs. 2020 Jun;22(3):279-293. doi: 10.1007/s40272-020-00384-5.
Bahls C, Krüger M, Weihard M, Infanger M, Grimm D. Effects of Arginine and L-Citrulline Supplementation on Blood Pressure. Nutrients. 2018 Jul;10(7). doi: 10.3390/nu10070921.
Park HY, Kim SW, Seo J, Jung YP, Kim HK, Kam M, Kim S. Effects of Dietary Arginine and Citrulline Supplements on Cardiovascular Health and Athletic Performance. J Nutr Biochem. 2020 May;79:108326. doi: 10.1016/j.jnutbio.2019.108326.

Circulation & Performance Support L-Arginine + L-Citrulline

$49.99

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Boost Circulation, Stamina & Vitality Naturally

NatureSpan® L-Arginine + L-Citrulline delivers dual-action nitric oxide support to boost blood flow, endurance, and vitality. Science-backed amino acids support athletic performance, heart health, and reproductive wellness.

Dual-Action Nitric Oxide Release

L-Arginine works instantly to boost nitric oxide, while L-Citrulline sustains its production, delivering long-lasting benefits for blood flow, stamina, and performance.

Endurance & Recovery Support

Improves oxygen and nutrient delivery to muscles, helping athletes and active individuals perform longer, recover faster, and reduce fatigue.

Cardiovascular Wellness

Encourages healthy vasodilation, supports normal blood pressure, and promotes optimal circulation to reduce strain on the heart and vessels.

Reproductive Health Benefits

Supports healthy blood flow to reproductive organs, aiding fertility, sexual wellness, and vitality for both men and women.

FAQ

Why combine L-Arginine and L-Citrulline instead of taking just one?

Great question! These two amino acids work like a tag team: L-Citrulline helps your body make more L-Arginine, which in turn supports nitric oxide production. Together, they keep your blood flow smooth and energy levels higher for longer.

Can this help with my workouts?

Absolutely! Many people notice better stamina, faster recovery, and improved endurance during training. It’s like giving your muscles a little extra fuel for performance and repair.

Do I need to take it only before exercise?

Not at all. While some enjoy it before workouts, daily use keeps nitric oxide levels more consistent. Think of it as ongoing support for circulation, heart health, and overall vitality.

Will this replace my pre-workout or energy drink?

Not exactly—it’s not a stimulant like caffeine. Instead, it supports natural blood flow and oxygen delivery to your muscles. Many customers love pairing it with their pre-workout for an extra boost, without the jitters.