GNC L-Arginine 1000 mg | Fuels Muscle Growth | Boosts Nitric Oxide Production | Improved Oxygen Flow | Supports Heavy Training | Formulated in USA | 1000mg Per Serving | 90 Tablets

GNC fulfills its commitment of excellence to you by ensuring that only products of the highest quality reach you, the consumer. For us, each and every step matters to ensure that what you consume under the GNC brand enables you to live well.

Each capsule provides 1 g of L-Arginine. Advanced Capsule Delivery.

Amino acids are the building blocks of protein and help fuel skeletal muscles.

Arginine is involved in creatine formation and the synthesis of creatine provides energy to your muscles for movements, especially quick movements.

Increases Nitric Oxide Production: Arginine is an essential precursor of nitric oxide and L-Citrulline can be recycled in the Citulline - NO cycle. This way both contirbute to Nitric Oxide Production.

Helps Maintain Blood Vessel Tone: Arginine and Citrulline both lead to production of nitric oxide and nitric oxide help maintain blood vessel tone and thus plays a role in protein synthesis.