Welcome to Hydration Nation, where only the most skin-loving, hydrating beauty picks for summer get their residency approved. L’Oréal Paris 6 Oil Nourish Shampoo is one of our resident heroes especially if you find yourself styling your hair with heat more often in summer. A blend of 6 essential oils, namely argan, almond, jojoba, olive, coconut and camelina. This one nourishes from roots to ends and repairs all forms of damage without the weight, leaving bouncy hair all summer. Shop more hydrating buys for summer: