Sparkle Star ( Hubei ) Biological Engineering Co., Ltd. is a world pioneer in the examination, improvement, creation, advertising and dispersion of Amino Acid concentrated from hydrolysis system. Their amino acid series of products, particularly L-Arginine, L-Arginine Hcl Mono and L-Cysteine HCL Mono, are positioning in the highest point of the line and delight in a decent notoriety among the worldwide business.