Endurance Products L-Arginine 350mg – Sustained Release Nitric Oxide Booster – Dietary Supplement for Optimal Absorption – 400 Tablets

L-Arginine 350mg – Sustained Release Formula for Heart, Immune & Vascular Health (400 Tablets)

Support your heart, immune system, and overall well-being with Endurance Products’ L-Arginine 350mg — a high-quality, sustained-release supplement designed for optimal absorption and long-lasting benefits.

💓 Cardiovascular & Vascular Support

L-Arginine is a key amino acid that helps maintain healthy blood vessels and circulation. It supports the production of nitric oxide, which plays a vital role in promoting vascular flexibility and healthy blood pressure levels.*

⚙️ Sustained 4–6 Hour Release for Better Absorption

Unlike regular L-Arginine supplements, our advanced sustained-release tablets deliver nutrients gradually over 4–6 hours, mimicking natural digestion. This allows for improved absorption, reduced digestive discomfort, and maximum effectiveness throughout the day.*

🧬 Comprehensive Health Benefits

L-Arginine supports:

• Cardiovascular & immune system function

• Detoxification & protein synthesis

• Hormone regulation & male fertility
  Ideal for active lifestyles, athletes, or anyone seeking daily foundational support.*

🌱 Clean, Allergy-Friendly Formula

• Vegan & vegetarian friendly

• Free from gluten, soy, dairy, corn, yeast, sugar, and artificial additives

• No GMOs, preservatives, or common allergens

🏭 Made in the USA – Family-Owned Since 1978

Manufactured in the Pacific Northwest, USA, in an FDA-registered, GMP-certified facility. Proudly family-owned and operated for over 45 years.

✅ Why Choose Endurance Products L-Arginine 350mg?

• 400 Tablets per Bottle

• 4–6 Hour Sustained Release Technology

• Supports Heart, Immune & Vascular Health*

• Clean Label: No Fillers or Common Allergens

• Trusted U.S. Manufacturer Since 1978

Fuel your body. Support your heart. Optimize your performance — naturally.