Nitric Oxide L-Arginine capsules are intended for use around workouts as part of a structured training and nutrition plan. L-Arginine is a precursor to nitric oxide, which plays a role in blood vessel function and nutrient delivery. This makes it a popular choice for athletes and gym-goers seeking support for training intensity and performance. Each capsule provides a precise serving suitable for stacking with other sports nutrition products. With 120 capsules per bottle, it supports multiple sessions. Best used with adequate hydration, rest and a balanced, protein-rich diet.