Was very happy with this product.
Used this along with a 20 developer and it lifted the hair much more then I've experienced with other bleaches.
Also it didn't produce any dust clouds ( when opening or fluffing the bag of bleach)
It contains a large portion too, so it lasts a long time, which is practical for doing roots or repetitive bleaching.
Would however recommend testing it on hair before usage to make sure it doesn't fry your hair as it seems strong. Although it did seem mild to the scalp with no irritations whatsoever.
Wouldn't hesitate with recommending this product.