Swanson L-Arginine & L-Ornithine is a purpose built amino acid mix that helps support heart health, protein metabolism, and lasting energy for daily vitality. The blend pairs L-Arginine and L-Ornithine, two amino acids that help with nitric oxide production and muscle energy, aligning with Swanson's heritage of quality. Available Sizes & Variants: 100 capsules - Daily use for ongoing support. Benefits & Features: Supports cardiovascular health by promoting nitric oxide production, helping blood flow during activity. Boosts blood flow for healthier, more efficient workouts. L-Ornithine supports the urea cycle, helping detoxify ammonia, which may reduce fatigue during intense training and significantly aid recovery between sessions so you can train more consistently. Aids lean muscle development and protein metabolism as part of daily supplementation. Swanson's long standing commitment to quality is reflected in careful sourcing and testing of ingredients, ensuring potency and purity in every capsule. Swanson has built a long standing reputation for quality amino acid supplements, pairing rigorous sourcing with careful testing to deliver pure blends. L-Arginine and L-Ornithine work together in the body to support nitric oxide production and the urea cycle, helping blood flow and fatigue management during demanding workouts. Capsules use gelatin, rice flour and light coatings, reflecting a simple, trusted formulation that keeps nutrients intact while offering easy daily dosing. This heritage means you’re choosing a brand with real experience behind every bottle. For a broader approach to overall wellness, some blends also incorporate probiotics and minerals such as magnesium glycinate to support digestion and muscle function, while others may include creatine for added performance potential.