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Think of a heat protectant like SPF for your hair. The same way you use sunscreen to protect your skin from damage, a heat protectant protects your hair from damage when exposed to heat. The high heat from a curling iron, hair straightener, or blow dryer can wreck your hair’s outer cuticle and lead to dryness, split ends, and breakage—kind of how excessive sunshine on your skin can cause wrinkles and cellular damage. Heat protection sprays help prevent a number of issues that come with using heat-styling tools, and some of them can even double as styling and treatment products that can extend the life of your blow out or nourish your hair. Amazing, right? Ahead, the 17 best heat protectants available right now—plus the most important things to know about using a heat protectant according to the experts.
