Oscar Blandi Pronto Dry Shampoo, $11 - $19

Dry Shampoo: "This product changed my life," said Riawna. "It's brilliant. I don't have to wash my oily hair everyday like I used to." She says,"It sucks up oil, freshens it up with a clean smell, and lets blowouts last 2 to 3 days longer." She suggests Unite 7 Seconds dry shampoo.