L-Lysine is an amino acid - one of the building blocks of protein - that plays an important function in body development and overall health, and is considered one of the eight essential amino acids. This amino acid in particular has shown to have many benefits for mouth and skin related concerns as well as basic cellular support. This ingredient may be added to foods and beverages or smoothies and green drinks. It is a pure white granular powder and has no fillers or binders, additives or preservatives. Various sizes available for personal use and quantity discounts available on bulk-packed foods and food powders for commercial uses. Only the highest quality natural food and bulk ingredients are sourced through family-owned Prescribed For Life Nutrition. Thank you for shopping with us and please come again!