Protecting your hair from damage caused by heat can feel like a full-time job – but, luckily, thanks to our edit of heat protectant sprays, things are about to get a lot easier. Whether from hair dryers, hair straighteners, hair curlers or even simply the sun and UV rays, heat is a near-constant concern for those looking to keep their hair nourished and healthy. Heat protection sprays and serums work by creating a barrier between your hair and a hot tool or heat source, sealing in moisture and minimising damage. The result of a heat defence spray? Soft, smooth tresses, ready for enhancing even further with hair oil, a hairbrush and styling products.