... preparation of crushed pearls used in China for skin care, and in traditional Chinese medicine as an ... twice weekly. It is widely used as a treatment for acne as it is thought to have a ... for insomnia, epilepsy, nebula, unhealing ulcer. 2, make skin smooth, velvety, white and have good effect to senile ... and coarse skin. 3, make skin white and gloss, eliminate black spot, can ...