Hair Clay, also known as Clay in the hair industry, is a hair product that has very similar characteristics to hair wax. They both have good hold, but the most noticeable difference between clay and wax is the matte texture clay provides. Clay also makes the hair soft. It also disentangles the hair. Clay has a little to no shine, meaning a stylist can achieve a very natural and dull look.
Clay products have a lot of good features, however they leave residual clay when too much is applied. That is, they can leave visible streak marks on the hair if applied poorly.