(info@sports-ingredient.com)Acyive compound is 25%flavone tested by HPLC. Color is light brown.Male silk moth extract has a long history in China of being used as a male sex tonic. Rich in unique proteins and male hormones, male silk moth is conducive to the normal growth of the body, and the formation and evolution of the male reproductive organs. It is used to nourish the Kidney, accelerate the growth of sperm and marrow and stimulate the nervous system. Male silk moth is considered in Asia to be an extremely potent male sexual stimulant and tonic.It is used for making human health nutrtiiton. Our packing type is Double-decker vacuum plastic, 2.5kgs/bags,25kgs/carton..