We cannot give you an exact answer as this will always depend on how long or thick you hair is.
If your hair is of average thickness and about shoulder length, you may only need half a full size box of It's Pure henna. For long or very thick hair you may need up to 2 boxes.
If you are applying to your roots only you may get 3 or 4 applications from one box.
Tip: For the most efficient and economical way to apply - when the henna is mixed a non-metallic bowl it can be applied with a hairdressers tint brush, this will help with application and make the mixture go further.
You may be interested in our Hair Colouring Accessories.
Our friendly support team are here to help, so please do contact us.