I really like this Wella Professionals Dry Thermal Image Heat Protection Spray. I have really thick long hair and find it hard finding products that don't weigh it down but this is brilliant and when I straighten my hair it's fab!!!
I have thick, blonde coloured hair and this is now the fifth time I purchased this as a thermal protector as I blowdry and straighten my hair every day. I have tried so many other brands, but it seems like they all make my hair very greasy. This one smells just like a thermal protector should, light and delicious summerish, and even though it contains oil it never makes my hair greasy. I love it.