Yamamoto® Nutrition Arginine Pro Kyowa® Quality Is A Nutritional Supplement Of L-Arginine Indicated In Case Of Increased Need For L-Arginine, Especially For Athletes Who Practice Strenuous Physical Activity. The Product Is 100% Kyowa® Brand Arginine Hcl, A Guarantee Of Quality. The Kyowa Quality (Kq) Brand Is Comprised Of A Wide Range Of Ultra-Pure Amino Acids And Related Compounds Provided By Kyowa Hakko Bio Co. Ltd., A World Leader With More Than 60 Years Of Experience And A Reputation For Strict Quality Assurance. With Its Innovative Fermentation Technology, Which Has Been Built Over The Years. Kyowa® Has Become A Trusted Pioneer In The Healthcare Field. How To Use: Swallow 2 Tablets A Day With Water Or Other Liquids 20/30 Minutes Before The Time You Want To Encourage Nitric Oxide Production Or At Night Before Going To Bed On An Empty Stomach. Do Not Chew The Product.