Neutralizing shampoo brings the PH of the hair back down to between 4.5 to a 5.5 level. Which is the normal range for hair and skin.
It is usually used after having chemical services done on the hair.
Some people use it if their hair is dry and/or brittle.
It is usually used after having chemical services done on the hair.
Some people use it if their hair is dry and/or brittle.
