If you like to protect your hair from heat damage before straightening or styling, you'll appreciate how expensive a decent heat protect spray can be. Superdrug currently has TRESemme Protect Heat Defence Styling Spray 300ml on offer at £2.49. They'd sold out at my local branch but I bought online and got free delivery with my superdrug card. (Orders over £10 are free anyway). They also do free click and collect. This is usually around £5 a bottle. Superdrug do their own brand which for 300ml is on offfer at £1.49 but I don't know how it holds-up against this. They've half price on lots of Tresemme products. Not sure when this runs out.