I begun to wash with the baking soda about 7 weeks ago. Before that I did wash about once per week with shampoo untill I saw it does still burning my scalp. So “weak” I’m about to be, I did quit to use shampoo about 7 weeks ago, if we don’t count the hair “dye” shampoo. My hair does look much better, and I wash it by baking soda about once per week. My many friends had said that my hair does look better, cleaner and much longer than weeks ago I did quit the shampoo treatment. That’s the point that they are not looking dirty or feeling itchy. Naturally perfect.