yes hair is absolulty a science......which is why i only utilize sulfate free and ph balanced hair and skin care and environmentally safe ammonia free color line ... our ph is 4.5 to 5.5 ..water is acidic and when washing it opens up the cuticle and this is when the products truly make the difference and this is why the proper shampoos and conditioners are of vital improtance... email me personally for more info...