My former colleague Ciera Velarde is a huge fan! Here’s what she has to say: 

“I’ve used it for about 12 years now and it’s the only thing that I can trust to prevent that dreaded chafing after a sweaty day of walking around. It glides on perfectly, it’s unscented, and it doesn’t melt away when you start to sweat. If it’s a particularly hot day out, it can start to fade after a few hours, so just make sure to bring it with you to reapply. In addition to preventing chafing between my thighs, I’ve also applied it on my arms where my sports bra rubs against them when I run and it works like a charm!”

Promising review: “Whoooo sometimes I feel as if a fire is going to start between my fat thighs, but with this stuff they just glide right on by each other, it has been a summer life saver. Only thing is you have to pack it on and reapply maybe 4 hours in, so bring it along for the ride. I will be buying again.” —Ash

Get it from Amazon for $6.