Doctor’s Best Fast Acting Arginine Complex features Nitrosigine®, a patented arginine silicate clinically shown to boost nitric oxide (NO) levels. Designed to work within 15 minutes, this vegan formula supports blood flow and cardiovascular health, with effects lasting up to 6 hours from a single dose.

Key Features

• With Nitrosigine®

• Boosts Nitric Oxide

• Fast-Acting Formula

• Supports Blood Flow

• Supports Cardiovascular Health

• Vegan & Non-GMO

Best for:
Those seeking fast-acting nitric oxide support for circulation, workouts, and cardiovascular health.