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The Best Hair Serum

Last updated on July 27, 2022

Our Review Process

Don't Waste Your Money is focused on helping you make the best purchasing decision. Our team of experts spends hundreds of hours analyzing, testing, and researching products so you don't have to. Learn more.

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Our Picks For The Top Hair Serums

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Product Overview
Key Takeaway
 Top Pick

Herstyler Frizz Control Argan Oil & Vitamin E Hair Serum

Don't Waste Your Money Seal of Approval


Frizz Control Argan Oil & Vitamin E Hair Serum

This versatile hair shine serum quenches damaged, dry hair and conquers frizz with a mixture of Vitamin E, aloe and argan oil extracts that also restores shine, smooths out tangles and tames your hair. It doesn't feel greasy either and will smell delicious and be much easier to style.

Overall Take

It's a Real Multi-TaskerYour hair will look and feel soft, nourished and healthy when you use this serum.

 Runner Up

Mise En Scene Golden Morocco Argan Oil Extract Hair Serum

Mise En Scene

Golden Morocco Argan Oil Extract Hair Serum

Mise En Scene's 2.7-ounce Golden Moroccan Argan Oil contains camellia, jojoba, Marula, apricot, coconut and olive oil, with no harsh chemicals, animal oils, synthetic pigments or mineral oil. It protects your hair from heat and helps it dry faster, too.

Overall Take

Go-To Moisturizing TreatmentUse this high-quality serum for tangle-free, stronger, sleeker and smoother hair.

 Strong Contender

Garnier Fructis Sleek & Shine Anti-Frizz Hair Serum

Garnier Fructis

Sleek & Shine Anti-Frizz Hair Serum

Garnier's Anti-Frizz Serum comes in a 5.1-ounce green bottle and is packed with frizz-fighting Moroccan argan oil and the brand's Kera-System+ blend of hair shining and smoothing ingredients. It has a natural, pleasing scent and is dye free.

Overall Take

Takes Control of TressesUse this serum with anti-frizz shampoos, conditioners and styling products.

 Also Great

OGX Nourishing + Coconut Milk Leave-In Repairing Hair Serum


Nourishing + Coconut Milk Leave-In Repairing Hair Serum

OGX's reliable 4-ounce anti-breakage hair serum is made with natural ingredients like coconut milk, whipped egg white protein and the essence of tiare. It also includes vanilla bean extract to repair and strengthen hair with an intoxicating, tropical scent.

Overall Take

Smells Oh So GoodYou'll feel like you're in Hawaii when you use this serum, and your hair will show signs of improvement immediately!

Buying Guide

Hair serums are treatment and styling products that coat the hair’s surface. They often have silicone, which remains on the surface to add shine, reduce frizz, eliminate tangles and make the strands softer and smoother. Some also have hydrolyzed proteins that combat the static charges that lead to flyaways and frizziness. You’ll also see ingredients like biotin, coconut milk, argan oil and other kinds of oil in these products.

Hair serums work like lubricants on straight, wavy and curly hair, but they also can target specific concerns like breakage and hair loss, even guarding against heat damage. If dullness is the issue, look for serums with oils like almond, argan and Vitamin E, as these can immediately smooth out hair and make it shiny. For thick, dry and frizzy hair, opt for a silicone-based serum, as these tend to seal the hair cuticle, preventing water evaporation and increasing hydration.

People with curly hair need a lot of moisture, so look for a lightweight one that offers a hydrating formula to help prevent breakage. Heavier serums can weigh down the curls, and you don’t want that. Colored hair can also benefit from hydration, so look for cream-based serums or oil blends formulated for color. Thin hair that tends to frizz does better with lighter silicone blends that are water soluble; oils can also weigh down this kind of hair.  

You can also find hair serums that claim to make hair grow thicker, and are supposedly be effective when used regularly. Hair loss can be hereditary, age-related, a result of cancer treatments and other illnesses and stressors, age or alopecia. The serums’ results are never guaranteed; talk with a doctor before trying any of these products.

What to Look For

  • Only use a few drops of the serum at a time. Rub this into your hands for a few seconds and apply to the ends of the hair, nape, mid-length and top of your head, in that order.
  • Applying too much serum on the crown of your head can make your hair oily.
  • Don’t use hair serum more than once a day.
  • If your hair looks weighed down after using a serum, switch to a lightweight version.
  • If your serum contains silicone, don’t use it in combination with other hair care products that have it.
  • Hair serums can also protect against pollutants and UV exposure.
  • Serums that feel sticky and tacky contain a heavy dose of moisturizing ingredients and are not appropriate for all hair types; they are better for thicker, drier hair.

More to Explore

A homemade hair mask can be fun to make and use, making your tresses look healthy and shiny. A basic one combines 1/2 cup of mayo, 2 tablespoons of full-fat yogurt and two tablespoons of coconut oil. Wash your hair with a clarifying shampoo (which unclogs the cuticle), mix the ingredients and apply it to your hair. Rake it through with your fingers from mid-length to the ends, avoiding the roots. Let it sit for an hour, use another shampoo to wash it out and use your usual conditioner afterward.

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