Day 5 It was time to wash my hair again and the humidity outside on this beautiful 78-degree day made my hair air-dry a lot wavier (and frizzer) than before. I didn't have any meetings to call into so I went with it. Prior to this hair experiment I probably would have deemed this a "bad hair day." The only product I added to my hair was the Living Proof No Frizz Instant De-Frizzer ($29) to help calm the halo of frizz around my roots. Image Source: POPSUGAR Photography / Jessica Harrington Living Proof No Frizz Instant De-Frizzer $29 from ulta.com Buy Now