3. Cassia: Known as neutral henna, cassia obovata can add a golden or light blonde tint to the hair without affecting darker colours. 4. Amla: Sourced from the Indian gooseberry, amla powder can ...

Semi-permanent vegetable dyes such as henna are recommended by the NHS as a safe alternative if you do not want to use chemical dyes on your hair. The main thing to remember is that your hair may ...