WARNING!: this is the bottle you want (The Brown One) The Yellow bottle DOES leave the white residue. If you are blonde this may not be an issue for you, but if you have darker hair like me that residue sure is a pain, so go with the brown bottle!
(I Love This!)
(I would not suggest this one for dark hair)
(This is the bottle that contains the powder form, instead of the spray. I have personally not used this one, but I would guess it is similar to baby powder)
*baby powder is also a great "dry shampoo," however you really need to make sure you brush it through your hair, or else it will look like you spray painted your hair white :(*