Has anyone tried this product? It puts temporary color in your hair, washes out after one shampoo. Its been advertised on TV a bit.

My question is "do the colors show up on dark brown hair?" I've bought for my daughter many temporary (gel like) colors but none show up, they just make her hair a sticky tangled mess.

This sound too good to be true.... (so it probably is right??)

Thx,
Barefoot