Basically, if you've just blown out Your hair, the back of Your neck can get sweaty, especially in the Summer. The last thing you want to do is ruin Your gorgeous look, so Van Ness recommends dabbing a touch of peppermint or spearmint oil on the back of Your neck, which Will keep it cool for up to an hour. His exact pick? This Aveda Cooling Balancing Oil Concentrate. ($22) She comes in both an oil and a rollerball, so you can take her wherever you want and stay flawless on the go. Armed with this priceless tip, we can conquer Summer with our blowouts intact! All hail Queen JVN!