Shampoo and conditioner ??????

I have been using herbal Essence for about 4 months now the same shampoo and conditioner. I heard it was bad to use the shame brand for too long. Is this true? Does it damage your hair?Shampoo and conditioner ??????
well im not sure about that.


but i heard that it is nice to change shampoos and conditioners :)


maybe it will make ur hair ';happy ';