zhi bai di huang pian - yinvive cool - 200 mg 200 tablets  yinvive cool (zhi bai di huang wan, zhi bai di huang pian, zhi bo di huang wan, 知柏地黄片) is a renowned chinese herbal formula used for purging fire in the body while nourishing yin. in traditional chinese medicine or tcm, yinvive cool can nourish yin to lower pathogenic fire. it is used for hyperactivity of fire caused by deficiency of yin, presented as hot flash and night sweating, dry mouth and sore throat, seminal emission, and scanty dark urine. at a true 5:1 concentration, both products represent the most potent form of zhi bai di huang pian (tang/wan) on the market. one tablet or pill is equal to 1 gram of raw herb.