I think its common knowledge that you should use a protection spray/serum when applying heat to your hair, especially when straightening.

The Thermal protector comes in a 150ml gold bottle, it has a spray pump which allows you to distribute the product evenly. The RRP is £9.95, although you can probably get it cheaper.

You can apply it to wet or dry hair, I prefer it on wet hair personally.

The main features of the Thermal protection spray are
Sunflower seed oil extract, this helps protect hair from UVA rays.
A thermal protector to deflect heat from the hair
Ingredients to protect and repair the hair.
Ingredients to help prevent colour fade

It is important to protect you hair from heat as heat styling can make hair weaker therefore making the chance of breakage higher.

The GHD technology in this heat spray helps protect the hair from any heat appliance up to 200°C
Thermal protection spray comes in 3 different strengths, normal - fine , dry + course, weak + damaged.
The Out of the 3 different GHD protector sprays this one (normal - fine ) is my favourite one, this is because I find that the others are too heavy for my hair and make it greasy whereas this one doesn't.

Overall i like this product by i wouldnt say it was my favourite product for heat protection.