Seriously, you are not up to date on your information.
The vast majority of shampoos are damaging to hair and scalp (and the environment). Many people here use a no shampoo method of cleansing their hair with no-silicone conditioner. It works beautifully and since I started this regime my hair stopped breaking and I finally have increase in length!!
You've been brainwashed, just like all the rest of us sheep. Time to open your mind to some real options in healthy living and inform yourself!!
Our society has been fed sooo many lies about sooo many things. It makes me sick!!