Does Cool Blonde L'Oreal Color Pulse work with light brown hair?

Or will it at least lighten it?

I need my hair blonde for halloween, but I dont want to use a wig. XD

Does Cool Blonde L'Oreal Color Pulse work with light brown hair?

It might lighten your hair I'm not sure but i used Colour Pulse in a dark colour on my hair and it would not come out so unless you are prepared to take the risk of it being permanent I would not take the risk.

Does Cool Blonde L'Oreal Color Pulse work with light brown hair?

I have light brown hair. NOTHING out of a box that says BLONDE will work. Its a rip-off! It turns orange, ect.