Rather than stating that is definitely possible to do so, it is recommended that you advice customers with damaged hair to wait a week before coloring.
While it will be really convenient if the hair is colored right after it is straightened, there are many people who have chosen to cut off their hair all at once after it grows longer.
Why can't it be done together?
Both the chemicals used for coloring and permanent straightening contains alkali, thought to be bad for the hair, which will be oxidized. Getting your hair colored and straightening on the same day would mean the process will be repeated twice, frequently causing irreparable damage to the hair.
In addition, the hair volume will increase when the hair gets damage, causing the hair to spread out and become wavy. Despite getting your hair straightened, the hair is more likely to become wavy if you do both on the same day.
How long should I wait until I can color my hair after permanent straightening ?
It is not recommended for those who have badly damaged hair to do both permanent straightening and hair coloring.
We recommend the usage of Art-Noise's original SHA Shampoo and Treatment, which was developed to treat damaged hair, to care for your hair at home.