Many of us love the smell of our shampoos and desire our hair to smell just like what is in our shampoo bottles. Some of us even even use the smell of our shampoo as our purchasing factor. With this being said, you may wonder why your hair never smells like your shampoo. Well, the main reason for this is that your hair tends to smell like the last thing that was applied to it. If you use a deep conditioner or any other conditioning treatment, it will smell more like your conditioner rather then your shampoo. If you shampoo your hair without applying any conditioner, your hair will smell like the shampoo mixed with your own scalps natural smell. The smell of your shampoo will not last longer then a day.