The Question: I hate the rules “lather, rinse, repeat”. Why can’t I just shampoo once? Well, there’s a reason you must do this. Why is it a good idea to repeat the process?
It’s just a clever shampoo advertising ploy that gets you to use twice as much; therefore buying twice as often
Cleaning a second time gets excess gunk out of your hair that you missed the first time
It feels good to massage your head; so do it twice!
It allows for a more “all over” clean; first you clean the top, then the back and sides
The Answer: The correct answer is Cleaning a second time gets excess gunk out of your hair that you missed the first time.