After your Salon K stylist has washed your hair they always spray a Bb. Primer all over your hair first thing. Why? Like a makeup primer, our Bb. Primers add vitamins to the hair and scalp, detangle and prep the hair for other products (meaning it evens out the hairs porosity making the rest of the products go on more evenly and perform better!). They may just seem like a simple spray but they do oh so much more then that! Ask your Salon K stylist which Bb. Primer is best for your hair!