Whether it's humidity, heat styling, or dryness, frizzy hair can be difficult to manage. A good hair serum helps tame flyaways, smooth rough strands, add shine, and protect your hair from everyday damage. Many modern formulas also include ingredients like keratin, argan oil, ceramides, and UV filters to nourish the hair while reducing frizz.
To help you find the right option, we've rounded up some of the best hair serums available on Amazon for different hair types and concerns.
If you're looking for a lightweight serum that does more than smooth your hair, the Moxie Beauty Frizz Fighting Hair Serum stands out with SPF 35 heat and UV protection. Its silicone-free formula helps tame frizz, hydrate dry strands, and protect hair from everyday styling damage without weighing it down.
A long-time favorite, Livon Keratin Hair Serum is designed to smooth rough hair and control frizz for up to 48 hours. Enriched with keratin, it leaves hair softer, shinier, and easier to manage.
Specially formulated for unruly hair, L'Oréal Professionnel Xtenso Care Leave-In Serum contains Pro Keratin and Incell technology to smooth hair while helping reduce breakage and improve manageability.
This cream-serum hybrid combines keratin and argan oil to repair dry, frizzy hair while reducing breakage. Despite its nourishing ingredients, it has a lightweight, non-greasy texture suitable for everyday use.
Minimalist's leave-in hair serum combines keratin, argan oil, and ceramides with SPF 30 to protect hair from heat and UV exposure. Its lightweight formula is ideal for those who frequently use styling tools.
Powered by a blend of floral oils, L'Oréal Paris Extraordinary Oil Hair Serum is suitable for all hair types. It helps reduce frizz, boost shine, and provides both UV and heat protection without leaving a greasy finish.
If you're looking for a lightweight serum that does more than smooth your hair, the Moxie Beauty Frizz Fighting Hair Serum stands out with SPF 35 heat and UV protection. Its silicone-free formula helps tame frizz, hydrate dry strands, and protect hair from everyday styling damage without weighing it down.
A long-time favorite, Livon Keratin Hair Serum is designed to smooth rough hair and control frizz for up to 48 hours. Enriched with keratin, it leaves hair softer, shinier, and easier to manage.
Specially formulated for unruly hair, L'Oréal Professionnel Xtenso Care Leave-In Serum contains Pro Keratin and Incell technology to smooth hair while helping reduce breakage and improve manageability. 
This cream-serum hybrid combines keratin and argan oil to repair dry, frizzy hair while reducing breakage. Despite its nourishing ingredients, it has a lightweight, non-greasy texture suitable for everyday use.
Minimalist's leave-in hair serum combines keratin, argan oil, and ceramides with SPF 30 to protect hair from heat and UV exposure. Its lightweight formula is ideal for those who frequently use styling tools. 
Powered by a blend of floral oils, L'Oréal Paris Extraordinary Oil Hair Serum is suitable for all hair types. It helps reduce frizz, boost shine, and provides both UV and heat protection without leaving a greasy finish.