VALX Arginine & Citrulline Powder Blueberry Cassis Flavor Brand new, unopened. I purchased this but am selling it as I won't be using it. [How to Consume] Mix approximately 1 scoop (about 8g) with 200-300mL of water per serving. Adjust the amount to your preference. Using a shaker will help it dissolve more easily. The ideal time to take arginine is "1 hour before exercise." Taking it at this time can enhance endurance and concentration, and improve performance during high-intensity exercise due to the effects of arginine. Arginine has various effects, so it's important to take it at a time that suits your purpose. If you want to improve exercise performance: "Before training" If you're tired or want to improve your condition: "After training" If you want to promote growth hormone secretion for beauty and health maintenance: "Before bed" * Will be shipped in simple packaging. * Price negotiations will not be entertained.