Take it with boiling water in the morning. Whitening pill, the essential oil of Baicaotang Rose, should be taken with boiling water every morning, preferably before 10 in the morning, 1. Please don't chew it, just swallow it with water. It doesn't matter whether you are on an empty stomach or not, because whitening pill, the essential oil of Baicaotang Rose, has no irritation to the stomach, but the side effect of whitening pill, the essential oil of Baicaotang Rose, will increase the burden on the kidneys. After taking it, the urine will turn yellow and the content of vitamin C is too high, but it can't