I either straighten or curl my hair, and because it is very fine and thin I have a problem with breakage and frying of the hair shaft, my hair is very fragile. I refuse to add any kind of heat to my hair without some protection! I currently use Infusium 23 moisturology leave in conditioner while my hair is damp, then I add whatever other styling product, usually mousse or a light styling lotion like Dove frizz control to smooth the little fly aways and pieces of broken off baby hairs, then I spritz on Alberto Miracle Mist Heat Defence Style Spray.
I love that this is another light as water product that doesn't leave a sticky or hard and crunchy and heavy product feel in my hair, I hate the feel of styling products, if I can feel them in my hair or on my head they are a no go for me. The spray is a very fine mist, so you don't get a big blast of product. I find that it works great together and best when used with the Infusium 23 Moisturology leave in conditioner than it does on it's own. This mist also smell wonderful, like a professional salon product. This leaves my hair really soft the next day, no greasy feeling.
It says on the bottle 'for a smooth frizz free finish with straightening irons and hair dryers' and I feel that this is true, I really like this product. It comes in a blue bottle with a red trigger, and comes in a 150ml spray bottle.