Natural Factors – L-Arginine 500 mg (90 Capsules)

Natural Factors® L-Arginine 500 mg (90 Capsules) delivers the essential amino acid L-arginine, known for its crucial role in nitric oxide (NO) production — a key compound that supports vascular relaxation, healthy blood flow and overall cardiovascular function.

L-Arginine is also essential for protein synthesis, immune activity and physical performance, making it a preferred supplement for athletes, active individuals and those seeking circulatory support.

Why Choose L-Arginine 500 mg?

L-Arginine naturally supports nitric oxide levels, which help improve circulation and promote healthy blood vessel tone. This makes L-Arginine 500 mg ideal for cardiovascular health, exercise endurance, sexual wellness and general vitality.

Key Benefits

• Supports nitric oxide (NO) production for healthy circulation
• Promotes cardiovascular and endothelial function
• Enhances exercise performance and endurance
• Supports immune system function
• Helps maintain healthy sexual function in men
• Non-GMO, gluten-free and suitable for vegetarians

Active Ingredients

Each capsule contains:
L-Arginine – 500 mg
Other ingredients: vegetarian capsule (hypromellose, water), magnesium stearate, silica.
Non-GMO. Gluten-free. Soy-free. Suitable for vegetarians.

Directions for Use

Adults: take 1–3 capsules daily on an empty stomach or as recommended by a healthcare practitioner.

Warnings

Not recommended for individuals who have had a heart attack. Consult a healthcare practitioner if pregnant, breastfeeding, taking medications, or if you have a medical condition. Do not exceed recommended daily dose. Keep out of reach of children.

Internal Links

Explore more cardiovascular and performance support formulas:
Cardiovascular Health
Sports & Performance
All Natural Factors Products

External Research Links

Learn more about L-arginine and nitric oxide:
NCBI – L-Arginine & Cardiovascular Effects
Healthline – L-Arginine Benefits