"I don't heat style my hair too often because when I do, I feel an overwhelming amount of guilt that I'm damageing my hair. The new Living Proof Perfect Hair Day Heat Styling Spray ($28) makes me feel like I'm protecting my hair a little better during the process. Unlike other heat protectant sprays that leave hair feeling heavy or stiff, this one dispenses a soft mist that coats hair to leave it feeling smoother. Now, when I blowdry my hair and curl it after, I'm not left with the typical frizz that I was used to and I'm pretty sure it's helping my style last a little longer." — Jessica Harrington, associate editor, Makeup.com