Our USP-grade Methylene Blue adheres to the strictest standards set by the United States Pharmacopeia for identity, purity, and potency. To guarantee this exceptional quality, independent laboratories rigorously test our Methylene Blue to ensure it's free from contaminants. We package it in a pharmaceutical-grade, light-resistant dark amber glass bottle to maximize shelf life. Our solution is alcohol-free, GMO-free, gluten-free, formaldehyde-free, preservative-free, and contains no artificial colors. Enjoy the potential benefits of Methylene Blue with complete confidence in its quality.