L-Methionine USP Grade Powder is a pharmaceutical-quality amino acid supplied in convenient 1 kg quantities. This fine white crystalline powder meets rigorous United States Pharmacopeia standards, guaranteeing high purity and consistency essential for pharmaceutical compounding, nutritional supplementation, and research applications. As a proteinogenic amino acid, L-Methionine serves as a critical building block for protein synthesis and supports various metabolic functions. The USP certification confirms compliance with stringent quality control protocols, making this product suitable for professional and clinical use where reliability and purity are non-negotiable requirements.