Wella professional Blondor multi blonde bleach powder 400g Lifts up to 7 levels Developer not included This product is designed for fine to medium hair types Mixing: 1 to 2 (1 part powder:2 parts developer) For extremely resistant virgin hair 1:1 can be used away from scalp/skin Use no more than 20vol for applications touching the skin, such as root touch ups Apply on dry, unwashed hair Maximum develop time is up to 50 mins, checking the hair every 5-10 mins is essential Using Chromaplex or Olaplex is highly recommended during any bleach work Rinse, shampoo and apply treatments Do not bleach extremely damaged hair Bleaching hair extensions are not recommended, bleach can easily ruin them. Use at your own risk