hmmm heat protectors for hair straighteners?

I have the right, but super thick and curly cheveux.J ‘ve tried a lot of heat shields. the thing that worked best was this good $ 4-5 ion spray bank Sally. I tried TRESemme’s thermal protection, ThermaSilk the essence of herbs, and recently I spent a few dollars more for a NEXUS.ils thermal spray are all still fry my hair. when I lower the temperature of my iron, not only do the job. did very well when I used the ion beam, but I do not like how the smell of my hair and always makes my hair feel too fat or too expensive huileux.Je will not pay for one. I went to a beauty supply store today and the bottle Shine Serum Bucks who was fifteen. Some have said spray Redken is good and about the same price. im willing to spend up to twenty. advice? and where to buy