Spanish Fly preparations were traditionally composed of cantharidin from a European beetle. This substance causes increased blood flow to the genitalia, heightening the libido. In the Feel Good Drops formula from Taboom, the cantharidin has been replaced by less dangerous and more effective substances. Contains Vitamin C to aid energy-yielding metabolism, and L-Arginine to stimulate endorphin production. Another great product from Taboom, established European adult lifestyle designers and producers.