How to Use: 1. Open the package, soak the dry shampoo in a proper amount of boiling water, and use it until the water temperature reaches 40 degrees Celsius. 2. When washing your hair, keep it for 15‑20 minutes, then rinse it off with wash water. Specification: Condition:100% Brand New Item Type: Hair Shampoo Powder Shelf Life: 3 Years Package List: 10 x Hair Shampoo Powder Note: For external hair shampoo powder, please place it in a place out of reach of children; people with skin allergies and broken skin are prohibited. If you are allergic or unwell after use, stop using it, and seek professional if necessary.