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The Best Heat Protectants to Protect Your Hair Against Thermal Damage

No breakage or dullness over here.

Headshot of Brigitt EarleyBy Brigitt Earley
best heat protectants

Before you reach for your trusty curling iron, straightener, or even blow-dryer, there's one important step stylists say you should never skip: heat protectant. These products "absolutely work," says celebrity stylist Michelle Cleveland. "Heat protectant is a must-have product for anyone who picks up a heat appliance," she says.

Why? Whether you have thin, fine straight hair or thick and curly natural hair, heat protectants—also known as thermal sprays—coat the hair with a layer of ingredients like humectants, amino acids, and keratins to lock in moisture and create a shield-like layer of armor once the heat is applied, Cleveland explains. This helps keep any excessive damage—breakage and dry brittle ends, for example—from happening to the strands.

Our Top Products
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  • 1
    Theramal Active Spray

    Best for Fine Hair

    Biolage Theramal Active Spray

    $22 at Amazon
    Read more
  • 2
    Protecting + Silk Blowout Quick Drying Thermal Spray

    Best Smelling

    OGX Protecting + Silk Blowout Quick Drying Thermal Spray

    Read more
  • 3
    All Eyes On Me 10-in-1 Hair Perfector

    Not Your Mother's All Eyes On Me 10-in-1 Hair Perfector

    Read more
  • 4
    Flat Iron Perfector Straightening Mist

    Best for Dry Hair

    Garnier Fructis Flat Iron Perfector Straightening Mist

    Read more
  • 5
    Color Fanatic Multi-Tasking Leave-In Spray

    Best for Color-Treated Hair

    Pureology Color Fanatic Multi-Tasking Leave-In Spray

    Read more

There are multiple types of heat protectants out there: fine mist sprays, creams, serums, and more. But Cleveland says it's not worth stressing over this particular attribute. "It's really all about preference," she says. "I personally love a good spray-on heat protectant. I feel it disperses more easily and evenly all over the hair."

1
Best for Fine Hair

Biolage Theramal Active Spray

Theramal Active Spray
1
Best for Fine Hair

Biolage Theramal Active Spray

$22 at Amazon$16 at Walmart$22 at JCPenney
Credit: Amazon
Pros
  • Adds volume
Cons
  • Some buyers say the formula is sticky

This protective spray not only keeps your strands safe from heat, but it also adds body and volume, making it an ideal choice if your hair is more on the fine side. Pro stylist tip: When spraying the thermal protectant on dry hair, apply on an individual subsection before using the hot tool of your choice for even results.

2
Best Smelling

OGX Protecting + Silk Blowout Quick Drying Thermal Spray

Protecting + Silk Blowout Quick Drying Thermal Spray
2
Best Smelling

OGX Protecting + Silk Blowout Quick Drying Thermal Spray

Now 22% Off
Credit: Amazon
Pros
  • Highly rated
Cons
  • Some buyers say it's drying

Great for all hair types, this creamy spray makes curls look softer and bouncier and straight strands smoother and shinier—all while protecting from heat up to 450 degrees and adding a divine scent.

3

Not Your Mother's All Eyes On Me 10-in-1 Hair Perfector

All Eyes On Me 10-in-1 Hair Perfector
3

Not Your Mother's All Eyes On Me 10-in-1 Hair Perfector

Credit: Walmart
Pros
  • Increases shine
Cons
  • If you don't like sweet scents, you may not like the berry vanilla fragrance.

Prevent moisture loss and dry, damaged ends with this all-natural thermal spray. In addition to the protection you need against hot tools, the spray contains natural keratin to strengthen hair and boost shine at the same time.

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4
Best for Dry Hair

Garnier Fructis Flat Iron Perfector Straightening Mist

Flat Iron Perfector Straightening Mist
4
Best for Dry Hair

Garnier Fructis Flat Iron Perfector Straightening Mist

Credit: Amazon
Pros
  • Affordable
Cons
  • Contains fragrance

If you often reach for your flat iron, try this sweet-smelling spray, which can be applied to dry hair, says Shelly Aguirre, a stylist at Maxine Salon in Chicago.

5
Best for Color-Treated Hair

Pureology Color Fanatic Multi-Tasking Leave-In Spray

Color Fanatic Multi-Tasking Leave-In Spray
5
Best for Color-Treated Hair

Pureology Color Fanatic Multi-Tasking Leave-In Spray

Credit: Sephora
Pros
  • Preserves hair color
Cons
  • Some buyers say it's heavy on fine hair

Protect against heat damage, knots, and dryness with this leave-in conditioner that simultaneously preserves hair color.

6
Best Fine Mist

Moroccanoil Perfect Defense Heat Protectant

Perfect Defense Heat Protectant
6
Best Fine Mist

Moroccanoil Perfect Defense Heat Protectant

Credit: Sephora
Pros
  • Lightweight
Cons
  • Some buyers say the fragrance is strong

Infused with natural oils, this fine mist spray protects hair from heat up to 450 degrees without weighing it down. It's highly versatile, too, since you can use it on either wet or dry hair. As an added bonus, the formula has a slightly tropical—but not at all overpowering—fragrance.

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7

JVN Complete Blowout Styling Milk

Complete Blowout Styling Milk
7

JVN Complete Blowout Styling Milk

Credit: Sephora
Pros
  • Increases shine
Cons
  • Styling milks may be heavy for thin/fine hair

Want a shiny and smooth blowout? This styling milk checks all the boxes—it reduces frizz, protects against heat, increases shine, and fights humidity.

8

Function of Beauty Thermal Protection #HairGoal Booster Shots

Thermal Protection #HairGoal Booster Shots
8

Function of Beauty Thermal Protection #HairGoal Booster Shots

Credit: Target
Pros
  • Affordable
  • Customizable
Cons
  • Only available in individual packs

Create your own heat protectant with these individual booster shots that you can add to your shampoo and conditioner for, well, an extra boost. There are a variety to choose from, but this one is specifically for protecting hair against thermal damage.

9
Best for Styling

Kenra Professional Platinum Heat Block Spray 22

Platinum Heat Block Spray 22
9
Best for Styling

Kenra Professional Platinum Heat Block Spray 22

Credit: Amazon
Pros
  • Offers a high hold to keep hairstyles in place
Cons
  • Some buyers find the formula sticky

This fine mist is great for all hair types and hair colors—especially blondes, who need it the most, says Kelly. And as an added bonus, it speeds up your blow-drying time and helps keep your style in place longer.

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10

It's A 10 Miracle Blow Dry Styling Balm

Miracle Blow Dry Styling Balm
10

It's A 10 Miracle Blow Dry Styling Balm

Credit: Ulta
Pros
  • Lightweight
Cons
  • Some buyers find the scent strong

If you prefer a cream, try this weightlessly formula. It locks out humidity to eliminate frizz, plus protects from even direct heat from curling irons and straighteners.

11

CHI 44 Iron Guard Thermal Protection Spray

44 Iron Guard Thermal Protection Spray
11

CHI 44 Iron Guard Thermal Protection Spray

Credit: Amazon
Pros
  • Doesn't cause buildup
Cons
  • Some buyers find the formula a bit drying

This weightless spray won't create any scalp-irritating buildup but provides an ample heat barrier to keep hair healthier and shinier.

12
Best Vegan and Cruelty-Free

Sun Bum Heat Protector Spray

Heat Protector Spray
12
Best Vegan and Cruelty-Free

Sun Bum Heat Protector Spray

Credit: Amazon
Pros
  • Lightweight
Cons
  • Some buyers don't like that you need to shake the two-phase formula

This heat protecting spray contains nourishing ingredients like noni and sea kelp extract to combat heat damage. Still, it's nice and lightweight, making it a great pick for anyone with fine hair. Also nice: It's vegan and gluten- and cruelty-free, says Cleveland.

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13
Best Sulfate-Free

L'Oreal Paris EverPure Sulfate-Free Weightless Blow Dry Primer

EverPure Sulfate-Free Weightless Blow Dry Primer
13
Best Sulfate-Free

L'Oreal Paris EverPure Sulfate-Free Weightless Blow Dry Primer

Now 25% Off
Credit: Amazon
Pros
  • Affordable
Cons
  • Some buyers say the floral scent is overwhelming

Drugstore heat protectants work just as well as their more expensive salon counterparts, says stylist Kevin Kelly. But it's important to select options that are silicone- and sulfate-free—especially if you have color-treated hair or are prone to scalp issues caused by product buildup.

14
Best for Curly Hair

Artnaturals Thermal Hair Protector Spray

Thermal Hair Protector Spray
14
Best for Curly Hair

Artnaturals Thermal Hair Protector Spray

Now 45% Off
Credit: Amazon
Pros
  • Moisturizing
Cons
  • Contains fragrance

A combination of argan oil and shea butter infuses strands with a hefty dose of moisturizer, so your curls will look soft and bouncy, not dry and brittle.

15
Best for Natural Hair

Hair Food Coconut & Argan Oil Heat Protectant Spray

Coconut & Argan Oil Heat Protectant Spray
15
Best for Natural Hair

Hair Food Coconut & Argan Oil Heat Protectant Spray

Now 20% Off
Credit: Amazon
Pros
  • Sulfate-free
Cons
  • If you don't like the smell of coconut, you won't like this scent

Specifically formulated for wavy, curly, and thick hair, this gentle but nourishing formula doesn't contain any of the bad stuff—sulfates, parabens, dyes, or mineral oils—that dry natural strands. Instead, it's infused with moisturizers like coconut and argan oils to protect and hydrate hair at the same time.

Headshot of Brigitt Earley
Brigitt Earley
Contributing Writer

Brigitt is a writer, editor and craft stylist with nearly 15 years of experience. She specializes in lifestyle topics, including home, health, parenting, beauty, style, food, entertaining, travel and weddings. She has written for Glamour, People, Good Housekeeping, Women's Health, Real Simple, Martha Stewart, Apartment Therapy, The Spruce, and more.

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