We put our hair through a lot—from hair dryers to curling irons to at-home dyes—all of which can cause hair to lose moisture, making it dry and prone to breakage, especially if you have fine hair. One thing that can help restore your hair's moisture levels? A good leave-in conditioner for fine hair.

Not to be confused with a heat-protectant or curl cream, a leave-in conditioner's main job is to hydrate your hair and aid in detangling. "By deeply hydrating and soothing the cuticle, it locks in moisture to reduce frizz and help define natural texture," explains Leo Izquierdo, co-founder of IGK Hair Care. So it's less about styling and more about hair health (though some do offer both).

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