Hi, Drive There! You have to try "Goldwell Sleek Perfection Thermal Spray Serum 3.3 oz." It is a fabulous product. My stylist uses this on me and it leaves my, normally curly, hair straight and super soft. It is a bit pricey but well worth it. It also last a full 24 hours easily. So, if you find most products do not last and tend to wimp out after just a few hours, you should really enjoy using this spray-in serum. Good luck!