Hello gorgeous! These pictures are made some time ago, but it don`t changes the idea :)
I had an ability to take some photos of my hair under the microscope and here you can see the result!
This is my hair 400 time magnified

and this is the same hair magnified 1000 times. Here the hair scales can be seen clearly. 

I have fine hair but as you can see hair look really healthy and have good texture (like in adds). And i use hair dryer every day and my hair are color treated. 
I just wanted to say that you need to think before buying some new expensive (or not so expensive) hair product. Do you really need it? Because hair overloaded with products and over-treated with vitamins, serums etc. become dull and look unhealthy.