Hair serums are the overachievers of the hair product world: They can tame unwanted frizz, protect your hair from hot styling tools, define your curls, enhance your shine, babysit your child, do your taxes ... you get the idea. But the most impressive types of hair serums are the six best hair serums for damaged hair featured here. They’re infused with strengthening ingredients like keratin, hydrolyzed silk proteins, and antioxidants to repair existing damage and protect your hair from aggressors (like the sun, pollution, and those evil heat styling tools) that can damage your hair further.
Hair serums are true multitaskers, so all of these products can be used both pre- and post-styling. That said, you can still choose your serum based on your specific needs: For instance, the heat protectants provide an intense shield against blow dryers and flat irons; the oil serums work beautifully as finishing serums, or on split ends; and some are concentrated enough to double as nourishing treatments.
However you choose to use them, the six best hair serums on this list do two very important things: Repair and protect fragile hair. (But they'll also do way more than that.) Scroll on to shop them now.
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