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L-Arginine is a high-purity conditional essential amino acid conforming to USP, EP and Chinese Pharmacopoeia standards. It has strong water solubility and stable chemical properties, serving as a key precursor of nitric oxide synthesis in human body. It participates in protein synthesis, immune regulation, vascular dilation and wound tissue repair, and plays an important role in maintaining cardiovascular health and normal physiological metabolism. Widely used in pharmaceutical amino acid preparations, sports nutritional supplements, functional health foods and cosmetic raw materials, it is a mainstream high-activity nutritional and pharmaceutical amino acid auxiliary material.