Conair Infiniti Tourmaline Ceramic Curling Iron,?

Tourmaline is a very good ceramic product. I am not sure about the brand, but you probably need one that heats up above 385-430 degrees if you are worried about how long the curl will stay. Having a great styling product and hairspray will really make the difference in how long the curl will stay. I would get one from Sally Beauty Supply. You can shop online for them. I love my Ion curling iron and flat iron, but there are a few that are just as great. Visit www.sallybeauty.com to see all the details. I would definitely stick with a ceramic product, though.