i have always highlighted my hair (all over and underneath) its a pretty blonde. i know that kills my hair but i keep it as healthy as i can. i dont wash it everysingle day, i lay upside down to increase bloodflow in my scalp and i take biotin pills. the layers are definately growing out but is there anything more i can do to help it grow faster? i use loreal expert lumino contrast shampoo and conditioner which i love.