I gave it 3 stars because - YOUR HAIR WILL NEVER BE THE SAME after you dye it light blonde. Be ready that the structure will be different. The hair is empty inside. Also usually it breaks. You just can't have long hair. It just breaks cause it's dry and actually dead. Be ready to this.
I did it many times. I do need to admit I've made my hair dry as hell - hair is completely lifeless after you dye it. I do need all those conditioners and balms all the time. I should iron it often etc. All this does not help too much. By dyeing I've made my natural dark blond hair black at the roots... I tried to dye hair dark - I can't watch into the mirror - it's not me.