The product is biological preparation with gentle performance and the effect of bacterium limitation and moist and without effect from head to foot and bad reaction. The essential oil for man can increase the passion energy, prolong the time with health and make passion last. The essential oil for woman can urge the inner nerve of woman’s vagina to be excited, to shrink, accelerate the exudation of lubricating liquid, arouse woman’s passion and make woman like fire to their heart’s content.