Description Sun Food Energy 100% Pure L-Lysine Dietary Supplement 1/4 Tsp. Daily Discussion: The essential amino acid lysine has many functions including supporting efficient utilization of low-lysine protein foods. Additionally, Lysine is intended to provide nutritive support for healthy immune system function. 100% Pure natural l-lysine power Nature's Life guarantees that NO ingredients other than those listed on this label have been added to this product. This quality Nature's Life product meets our Quality Assurance Procedures and Good Manufacturing Practices. Quality You Can Trust