This is anti yellow shampoo.It contains intense purple pigments to counter unwanted yellows. Purple Toner Shampoo is suitable for use.It can enhances the color of your hair, giving it a cool gold or dazzling silver/gray tone. Specifications: Color: as shown Net Content: 100g Shelf Life: 3 years Package Included: 1 x Shampoo Usage: 1. Soak your hair like washing your hair before putting on disposable gloves. 2. Take an appropriate amount of purple shampoo to fully rub out the foam, then massage the hair. 3. After standing for 3-5 minutes, observe the color of the hair and rinse with warm water. Note: 1. Be sure to wear gloves before use, otherwise it will contaminate the skin. 2. Don' t stay for too long or the color will become purple. Generally observe the color effect in about 3-5 minutes, and then wash it off with warm water. 3. This product can be used 2 ~ 3 times a week.