L-Arginine found in SilverOnyx Nitric Oxide supplements is an amino acid which can be converted to nitric oxide. Our nitric oxide support supplement also contains citrulline malate. Supplement Facts (per 2 Veggie Capsules): Niacin - 15mg Calcium (as Calcium Carbonate) - 36 mg L-Arginine - 400mg L-Arginine AKG 2:1 Extract - 400mg L-Citrulline - 200mg L-Citrulline Malate Extract - 200mg Beta Alanine - 80mg Inactive Ingredients: Cellulose (Vegetable Capsule), Magnesium Stearate (Vegetable), Silicon Dioxide. Each batch of our SilverOnyx Nitric Oxide Arginine Supplement is proudly manufactured and bottled in the USA facility following strict cGMP guidelines. Third party reviewed for purity and quality by an experienced dietary supplement laboratory.

Bottled in the USA: Each bottle of our Nitric Oxide Arginine Supplement is proudly formulated and bottled in the USA following strict cGMP guidelines; Reviewed by third party lab for quality and purity. For Everyone: SilverOnyx Nitric Oxide capsules are natural formulas optimized for women and men of all ages. Increased Workout Production: Nitric Oxide helps support workouts from pre-workout prep to providing a powerful 'pump' to quick recovery. Supports Muscle Growth and Recovery: SilverOnyx Nitric Oxide supplements for men are specially formulated with L Citrulline and L Arginine for help support muscle growth and recovery from normal workout routines. Extra Strength Nitric Oxide: Our premium nitric oxide supplements stack includes: L Arginine, Niacin, Calcium, L Arginine Akg 2:1 Extract, L Citrulline, Malate Extract and Beta Alanine; These extra strength ingredients provide for supercharged muscle pumps.