Tri Bull is especially designed to assist in enhancing natural libido levels, improve muscle mass and assist in workouts. Tri Bull is suitable for both male and female to increase desire, improve libido. This product contains Zinc which may be dangerous if taken in larege amounts or for a long period. Ingedients (per tablet) Tribulus terrestris Ext. (50:1) 250mg Avena sativa Ext. (10:1) 250mg Zinc sulfate 40mg However, if symptoms persists please seek advice from your healthcare provider.