Keratin/Smoothing treatments can be done  a week after a hair coloring service. This service will take over three hours for medium to long hair hair. Pregnancy is not a limitation, this service can be done after the first trimester. This will not alter the hair color service of a single process, balayage or foil highlighting.  You can have this treatment anytime of your choice. It is a very clean and simple treatment and will last up to 3-4 months. If you have wavy to frizzy hair this will cut your styling time in half.  This treatment will smooth out the wavy and curly hair and make the curl looser to work with.