Not so good

It only works if your hair is already quite light so I don't really see the point of it. Was quite disappointed as I had high hopes. So the main point is, use it if your hair is already light blonde

I used this spray more than a year ago. Strongly damaged my hair though I followed their instructions carefully and I never died my hair before. The color was nice. But, my whole hair was falling and got super damaged that I had to cut it. I don’t recommend it at all.

I was not impressed with this. It costs more than the average and you would hope that this would stand up to the name. Not only did it not work very well it made my head break out.

I have dyed blonde hair. It always goes pretty brassy and I'm always looking for something to help with this. I thought this would be the answer. It claims that it permanently lightening blonde hair. However, I saw no difference with the colouring at all.

I bought this before a trip to Dominican Republic, I was informed the product Sun In was not on market this year and this was the only product they suggested I try. They did not know if it would work. I followed the instructions as well as tried it by spraying throughout my sons hair and sitting is 33• weather and it did not work. I realize it was not suggested to apply and go in sun but thought to try it. It didn't work.
When I followed the instructions and blew dry it in and used a hot iron in spots of my sons hair to be fully able to review it. My sons hair did not lighten any of the ways.
The scent of the product was not appealing at all.