Heat Bounce.

"This is the leave-in conditioner and heat protectant I've been raving about for a while, it launched late summer or early fall last year and I've used it ever since. I just finished it three weeks ago and pulled out a new one, and I wash my hair two to three times a week, so it lasted a very long time. It really conditions the hair, leaving it super soft, smooth, and shiny, and it tames down frizz while protecting hair from heat styling up to 450 degrees Fahrenheit. It has a patented technology called Rilicor that protects both the cuticle and the cortex of the hair, whereas most heat protectants only protect the cuticle. That's what I'm looking for with my fine bleached hair, and it's made a big difference. It also smells incredible."

"This is a great one because I'm always in the market for a good lightweight heat protectant that helps to make my hair feel better and does something for my hair aside from just protecting it from heat. Not only does it protect your hair from heat of styling, it also helps to reduce breakage and strengthen your hair fibers because it's got that biomimetic K18 peptide. I love the texture because it's light. It's nourishing but not heavy. So it also helps to soften and smooth your hair at the same time. So you're protecting your hair but also doing something good for your hair at the same time. Ingredient-wise, it's got the K18 peptide, heat activators, polymers that help to do its job, and then conditioning agents that help to smooth and soften your hair. I apply it on damp hair, but I believe you can also spray it on dry hair before you curl. So it's pretty versatile in that sense."