This vegan and cruelty-free dry shampoo doesn't contain any talc, parabens, or baking soda (hooray). Pro tip: If you add some into your roots before bed, you'll wake up with a completely refreshed scalp that looks like it was shampooed five minutes ago (...as opposed to five days ago).
As someone with thin, greasy, flat hair, I can confidently say that powder dry shampoos are so much better than aerosol ones. Like, they actually make your hair look freshly-washed.
Promising review: "This stuff is the real deal! I’ve been all about dry shampoo for over 12 years and this has become my new favorite. I have very fine, limp, color-treated hair that I only wash about twice a week. I love sprinkling some into my hair at night and rubbing it in because the next day, not only is my hair softer, but it has so much volume without any kind of residue. The trick is not to use too much, but if you do, just rub thoroughly into your scalp and use a natural bristle brush to get out some of the excess. I don’t think I’ll ever need to buy a different dry shampoo again!" —misskacey
Get it from Amazon for $9.99.