Frizz-Fighter:
Ouidad Climate Control Gel

There’s nothing worse than spending hours on styling your hair—blowing it out or curling it into submission—only to have it fro out the minute you step into a humid day. Kill the frizz and save your ‘do by applying some Ouidad Climate Control Gel ($22-$66, ouidad.com) before you style. According to the makers, “it protects curls from humidity by absorbing moisture from air to hydrate each strand of hair and help control frizz.” Now that’s giving humidity a dose of its own medicine.

—Serena Kim