L-Tyrosine can be found naturally in common foods, such as eggs, meat, dairy, fish, oats, beans, and nuts, and plays an important function in body development and overall health. This essential amino acid helps produce adequate brain chemical levels and assist with overall thyroid and adrenal function. L-Tyrosine has shown to have many benefits for improving optimum brain function and exercise/weight training advancements. This ingredient may be added to foods and beverages or smoothies and green drinks. It is a pure white 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!