Cool Hair Straight Chemical References. Web hair relaxing is a form of permanent chemical straightening. In order to cover the 10 best hair relaxers on the market today, we are going to base our choices on the following characteristics:

The cost of permanent straightening of your hair varies from salon to salon. Web hair is made up of proteins called keratin and melanin, which are arranged in a cortex. Hair irons (flat iron) apply heat directly to hair.