How to use dry shampoo?

When I use it my hair feels really clean but still looks greasy鈥o uhhh how do you use dry shampoo? I must be doing something wrong here lol. :)How to use dry shampoo?
I'm not sure what brand you have, but this should still apply. Spray or work powder into root (scalp) area of hair (If you have dark hair and the shampoo is light colored, then test a little bit at a time to make sure it is not noticeable). Let it sit for a few minutes, then thoroughly brush your hair. If needed, add more. Be sure to focus on areas around the face and your part line, which tend to show grease more.