Sephora Dynamic Duo on the Go The price of the Sephora Dynamic Duo on the Go ($12) cleansing brush isn't its only selling point. It's a two-sided product — there's a bristle-face brush on one side and a soft silicone pad on the other — which gives you a tad more control over how gentle you want your wash to be. Image Source: sephora.com Sephora Dynamic Duo on the Go $12 from sephora.com Buy Now