Why does clay make hair look thin? Posted September 4th Man For Himself Forum › Category: Hair Products › Why does clay make hair look thin? 0 Vote Up Vote Down JakeS75 asked 2 years ago I have thick hair but when I use clays it makes it look very thin at the front. It separates each hair and makes the scalp obvious. Any idea why this is? And are there any clays that won’t do this? Please login or Register to submit your answer Username or Email Address Password Remember Me