THORNE L-Arginine, Sustained Release Formula, 120 Capsules

• Circulation Support: Benefits heart health, collagen formation, and more by helping relax the arteries and regulate blood flow to the extremities and throughout the body*
• Sustained-Release Formula: Maintains optimal levels of arginine over 24 hours when taken twice daily as suggested
• Athletic Performance: Enhances muscle capacity and output during exercise and helps promote cellular repair*
• Third-Party Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants
• Trusted: Thorne is trusted by 100+ professional sports teams and the #1 most recommended clinical brand by consumers and health-care practitioners (Based on a 2026 independent survey of US supplement consumers and health-care practitioners)

Specifications

• Product Dimensions: 2.58 x 2.58 x 4.94 inches; 5 ounces