Ouai
Dry Shampoo Foam – Travel-size
$12.00
At Birchbox
This first-of-its-kind dry shampoo foam looks like a mousse but as you work it through hair, it instantly absorbs oil and dirt, actually cleaning your strands without water. The formula also adds a little volume to roots for a tousled look, plus a floral fragrance to mask second-day odors.