When soaking, water with pure purification or iron ion should be used, and the well water is high. There are many impurities and minerals. This will affect water absorption and cause poor soaking. In the north, it is recommended to soak your hair indoors in winter. Soak your hair with warm water. This will speed up the soaking process. Large bottle, etc.) Be sure to be large enough, otherwise the crystal baby will be installed with too much water. If the capacity is too small, the water volume is insufficient, which will cause insufficient soaking. (The manufacturer stipulates that it should be soaked for about 4-5 hours) to meet the standards. We need to freeze the crystal babies to the correct size according to the standard steps: