Perfect hair Day Dry Shampoo When to use: For those looking for excess sweat and oil absorption (Ex. Use post workout or on the last wash-free day) Fragrance: Signature odor-neutralizing scent Feel: Light textured feel Cleansing Results: Clean roots + added texture & body Perfect Hair Day Dry Shampoo. The #1 dry shampoo brand*. A dry shampoo that actually cleans hair by absorbing oil, sweat, and odor while also adding body and texture.