Amika High Tide Deep Waver This top-rated Amika High Tide Deep Waver ($120) can create beachy, crease-free waves when hair's pressed between the two curvy plates. And it happens to work especially well on hair that hasn't been washed in a couple days. (Oh, is that just us...?) Image Source: sephora.com Amika High Tide Deep Waver $120 from sephora.com Buy Now