Clariol Psssssst Instant Spray Shampoo is the original dry shampoo and in my opinion works the best at half the cost. The vintage-style packaging has no fancy bells or whistles. Simply spray on roots to absorb excess oil and odor. I use mainly to boost volume at the roots and this product achieves just that. This spray shampoo transforms my dull dirty hair without washing.
Tip: Use with caution on dark hair (powder is white) and be careful not to spray too much in one area.