When we use a deep conditioner on our hair to nourish and strengthen them, they attach themselves to these negatively charged areas of the hair. The particles from the conditioner are positive and hence the opposite attraction. Thus, while you blow dry your hair you are actually treating it to be smooth and silky. Ionic hair dryers generate millions of helpfully stimulating ions, which shatter the positively charged water molecules. Negative ions protect the hair shafts, thus retaining their smooth and sleek texture.