This is the ONE product everyone with long hair should be packing for their holidays

Summer, and especially sun-breaks with plenty of sunshine, swimming pools and salt water can really take its toll on our hair. City breaks are not much better, the sun still being an issue, and add onto that a whole lot of traffic dust and air pollution, and you got yourself a recipe for dried-out, dull and straw-like locks. As well as this, harmful UV rays and humidity can also cause your scalp to become irritated, leaving you itchy and with hair that feels constantly greasy and limp. A far cry from the gorgeous, sun-streaked mane we dream of come summer, in other words. However, help is at hand, and we have just tried out this summer's number one handbag essential for your hair, whether you are beach or city bound. Kérastase Soleil Micro-Voile Protecteur (€26) is a light-weight leave-in protection spray for your hair that not only protects your locks against harmful UVA/UVB rays, but also offers fade protection for coloured hair too. Even better? The anti-frizz technology will save your from ending up with humongous, fluffy hair – even in really humid, hot weather. Just spray on damp or dry hair in the morning, before you head out or especially before hitting the beach or pool. And remember to reapply throughout the day for maximum effect and protection. PS: If you really want to pamper you hair this summer, we are also loving the other products in the Kérastase Soleil collection, like the amazing Soleil CC Cream that you leave in to smooth and give your hair glow, and the great, deep cleansing Soleil Bain Apres Soleil, the perfect shampoo to use during the hotter months of the year, as it eliminated build-up of sea salt, sand and chlorine on both your scalp and hair.