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Home » Hair Products

The Best Heat Protectant for Natural Hair: Our Top Choice

Kenneth ByrdBy Kenneth ByrdMBA · 15+ years in hair care · Co-founder of Curl CentricUpdated Sep 13, 20269 min read · Reviewed by Kira Byrd

Evidence-basedPublishing since 2008May contain affiliate links
A woman with long straight dark hair in a sheer sleeved black top, facing the camera against a white backdropPin

Your hair is dead. Although your hair seems to be alive by the mere fact that it grows, hair is nothing more than dead fiber.

Your hair doesn't have any active cells once it emerges from the scalp.

As a result, your hair can only stay in its original condition as it emerges (with good maintenance) or deteriorate over time. The hair we see has no active cells within it capable of fixing any damage that takes place once it has emerged from the scalp.

As you add heat to your hair strands, it's critical that you take the necessary precautions to ensure that you protect your curl pattern from the heat exposure of blow-drying, flat ironing, curling, and other forms of thermal styling.

In this article, we'll be discussing how to protect your curls when you use heat styling tools, and we'll highlight the best heat-protectant spray for natural hair.

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Table of Contents

  • 1. What's the Best Heat Protectant for Natural Hair?
  • 2. The Best Thermal Protectant for Natural Hair
  • 3. What Are Heat Protectants?
  • 4. Do Heat Protectants for Natural Hair Really Work?

What's the Best Heat Protectant for Natural Hair?

The best heat protectant for natural hair is the TRESemmé Thermal Creations Heat Tamer Protective Spray. It's good for ladies that like to heat style their hair and are looking for ways to protect their hair from heat damage.

An 8 fl oz bottle of TRESemme Thermal Creations Heat Tamer leave-in spray lying on a wood plank surfacePin
TRESemmé® Used By Professionals is a heat tamer (or heat protectant) that protects your hair up to 450°F.

Using heat to create a silky smooth hair texture damages your hair physically. The physical damage is the result of direct exposure to heat (e.g., flat irons, blow dryers, etc.), which can cause your hair to become dry, brittle, and break.

This type of damage is often irreversible and can leave your hair looking dull, limp, and lifeless. The TRESemmé Thermal Creations heat tamer leave-in-spray is a heat protectant that helps to shield your hair from both types of damage.

TRESemme Thermal Creations Heat Tamer Protective SprayPin
TRESemme Thermal Creations Heat Tamer Protective Spray


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Curl Centric may receive compensation if you make a purchase using this link, at no additional cost to you.
10/12/2026 12:29 am GMT
Close up of the back label on the TRESemme Heat Tamer bottle, showing three usage steps and the ingredients listPin
On the back of the TRESemmé heat tamer's bottle are three tips that you should follow when using the product: 1) Prep your hair with your favorite TRESemmé shampoo and conditioner. 2) Spray liberally 6-8 inches away from mid-shaft to ends on both damp hair before you blow-dry and on dry hair before curling or flat ironing. 3) Style your hair as usual and finish off with TRESemmé TRES Two™ hair spray.
The back of the TRESemme Thermal Creations Heat Tamer bottle on a wood surface, label text and barcode visiblePin
Ingredients: Water (Aqua), Glycerin, Amodimethicone, Hydrolyzed Silk, Ascorbic Acid, Panthenol, Tocopheryl Acetate, Biotin, Niacinamide, Sodium Benzoate, Peg-12 Dimethicone, Propylene Glycol, PVP, Fragrance (Parfum), Polysorbate 20, Cetrimonium Chloride, Lactic Acid, Benzophenone-4, Disodium Edta, Cyclopentasiloxane, Triethanolamine.

The Best Thermal Protectant for Natural Hair

A ball and stick molecular model of a protein alpha helix, with magenta lines marking hydrogen bondsPin
Side view of an α-helix of alanine residues in atomic detail.

Using heat on your hair can result in physically heat-damaged hair as well as irreversible changes to your hair at the molecular level.

The natural structure of keratin, the protein present in your hair, can be irreversibly changed by using high-temperature heating appliances or by exposing your hair to prolonged heat styling.

Keratin is thought to give your hair its natural twist, also known as the alpha helix. This natural twist is present in all types of hair.

When your hair is heated to a temperature around 215° to 235°C or 419° to 455°F, the alpha helix begins to melt. This results in an irreversible change in the hair. At the molecular level, the hair retains the shape of the melted alpha helix. 

At the physical level, the hair shows this molecular damage by failing to revert back to its original naturally curly shape. It's important to note that all hair damage is cumulative, so it can build gradually over time as you continue to use heat styling techniques.

The TRESemme Thermal Creations Heat Tamer spray standing upright on a wood table beside a windowPin

Gentle treatment and hair conditioners can prolong the life of damaged hair, but the hair is still damaged, and the damage will usually increase with time. This is why heat protectants are necessary if you plan to utilize heat styling.

A woman, hair long and straight over one shoulder, turning slightly toward the camera in a black topPin

What Are Heat Protectants?

Heat protectants are silicone formulations used to protect your natural hair from heat damage. Heat protectants are usually made up of hydrolyzed proteins, amino silicones as well as polyquats.

They work by forming a barrier on the hair shaft that prevents heat from penetrating the cortex of the hair. This, in turn, protects your hair from becoming dry, brittle, and breaking.

A woman in profile in a black top with sheer sleeves, one hand at her chin, long straight hair down her backPin

Do Heat Protectants for Natural Hair Really Work?

According to numerous research studies, heat protectants work pretty well when they're used properly. Based on scientific research, heat protectants do the following:

  1. Mitigate the breakdown of hair proteins (J. Cosmet. Sci., 49, 245-256 Jul./Aug. 1998).
  2. Mitigate loss of water from the hair strands and reduce the hair cuticles from cracking the hair as well as allowing the hair to maintain its strength after heat treatment (J. Cosmet. Sci., 55, 13-27 Jan./Feb. 2004).

It's important to note that hair generally isn't damaged by low heat (less than 100°C) applied for short time periods of time. However, we know that 100°C isn't exactly low heat, especially when you consider that water will boil at this temperature.

A woman looking off to her left, long straight hair falling past her shoulders over a black topPin

Do I Need a Heat Protectant on Natural Hair?

You should use a heat protectant anytime you're using heat-styling tools such as curling irons, flat irons, and blow dryers. If you have damaged hair or are concerned about preventing future damage to your hair, using a heat protectant is a must. Applying heat to your hair without a heat protectant can result in physical damage to your hair as well as irreversible changes at the molecular level.

Does Heat Protectant Work on Natural Hair?

Yes, heat protectants work on natural hair. Heat protectants are silicone formulations used to protect your hair from heat damage. Heat protectants usually contain hydrolyzed proteins, amino silicones as well as polyquats. According to research, these ingredients help to mitigate the breakdown of hair proteins and reduce the amount of water lost from the hair strands.

How Do I Protect My Natural Hair From Heat Damage?

Routinely using a heat protectant is the best way to protect your hair from heat damage. A heat protectant can help to mitigate the breakdown of hair proteins and reduce the amount of water lost from the hair strands. Additionally, using low heat settings on your styling tools and avoiding extended periods of time with heated tools on your hair can also help to keep your hair from suffering heat damage.

When Does Heat Protectant Expire?

Heat protectants, on average, can stay on your hair for up to 4 hours after applying it to your hair. The effectiveness reduces quickly after roughly 4 hours. If you're also wondering how long a container of heat protectant lasts before it goes bad, the average lifespan of a heat protectant is one year. Although, we always recommend reviewing the product packaging and following the expiration date provided by the manufacturer. Read this article to learn more about how heat protectants last.

A woman smiling with one hand at her chest, long straight hair falling forward over a sheer sleeved black topPin

Do Heat Protectant Sprays Actually Work?

Heat protectant sprays can be effective in reducing the amount of damage caused by styling tools. They create a barrier between the hair and the heat with ingredients like silicone, oils, or polymers. While they cannot completely prevent all heat damage, they can significantly reduce it. They're very important for healthy hair.

Is Heat Protectant Spray Good for Hair?

Heat protectant spray is good for hair because it protects your hair from damage caused by styling tools that generate heat, such as hair dryers, curling irons, and flat irons. Heat protectant sprays contain ingredients that create a barrier between the hair and the heat source, reducing the amount of damage that occurs.

Do You Put Heat Protectant on Wet or Dry Hair?

The application instructions for heat protectant spray vary depending on the product. If your heat protectant spray is designed for use on damp hair, apply it evenly to your hair after washing and towel-drying. If your heat protectant spray is intended for use on dry hair, apply it evenly to your hair before using a flat iron or curling iron.

What Is the Best Drugstore Heat Protectant for Hair?

Several good drugstore heat protectant sprays are available to effectively protect hair from heat damage, including Tresemme Thermal Creations Heat Tamer Spray, Garnier Fructis Style Perfector Straightening Mist, L'Oreal Paris Advanced Hairstyle Boost It Blow Out HeatSpray, and John Frieda Frizz Ease Heat Defeat Protective Styling Spray. The best product varies depending on your hair type and styling tools.

What Heat Protectant Do Salons Use?

Salons use a variety of heat protectant products to protect their clients' hair during styling, including Oribe Royal Blowout Heat Styling Spray, Kerastase Discipline Fluidissime Anti-Frizz Spray, Bumble and Bumble Hairdresser's Invisible Oil Heat/UV Protective Primer, and Redken Iron Shape 11 Thermal Holding Spray. Consult with a stylist to determine which heat protectant product is best for you.

Is Chi a Good Heat Protectant?

CHI is a popular brand of heat protectant that is generally considered to be effective in protecting hair from heat damage. CHI heat protectant products are formulated with ingredients like silk and ceramic to help create a barrier between the hair and the heat source. This reduces the amount of heat that penetrates the hair shaft and causes damage.

Is Revlon Uniq One a Heat Protectant?

Revlon Uniq One is a multi-purpose hair treatment spray that provides a range of benefits, including heat protection. This spray is designed to protect hair from heat damage caused by styling tools such as flat irons, curling irons, and blow dryers. Revlon Uniq One also helps to smooth and detangle hair, add shine and volume, and reduce frizz.

Is Aveda Smooth Infusion a Heat Protectant?

Aveda Smooth Infusion has a heat protectant spray designed to protect hair from heat damage caused by styling tools. The Aveda Smooth Infusion Style-Prep Smoother is a lightweight formula that is used on damp hair before blow-drying or using heat. It helps to protect hair from heat damage, reduce frizz, and smooth hair, leaving it looking sleek and shiny.

Is Redken Frizz Dismiss a Heat Protectant?

Redken Frizz Dismiss is a line of hair care products that includes a heat protectant spray designed to protect hair from heat damage caused by styling tools. The Redken Frizz Dismiss Rebel Tame Heat Protective Leave-In Cream helps to protect hair from heat damage up to 446°F, reduce frizz, and smooth hair, leaving it looking sleek and shiny.

Is L'Ange Glass Hair a Heat Protectant?

L'Ange Glass Hair is not a heat-protectant product. It's a hair serum that is designed to provide high shine and a sleek, glass-like finish to the hair. It is formulated with natural oils and extracts that help to nourish and protect the hair, but it does not contain any specific ingredients that are known to provide heat protection.

Related Articles

  • Can I Put Hairspray After Straightening?
  • Can I Straighten My Hair Without Heat Protectant?
  • How Do I Keep My Hair Straight

Furthermore, many hair styling methods surpass this heat threshold substantially. It is, therefore, important to use heat protectants for all heating applications. So, what's the best heat protectant for black hair?

Curl Centric recommends TRESemme Thermal Creations Heat Tamer Protective Spray as a heat protectant for natural hair. It's good for ladies that like to heat style their hair and are looking for ways to protect their hair from heat damage. Use this link to learn more about TRESemme Thermal Creations Heat Tamer Protective Spray.

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Kenneth Byrd

About the author

Kenneth Byrd

Co-founder and Managing Partner

Publishing on textured hair since 2008MBA, University of Alabama at BirminghamExecutive education, WhartonTop 40 Under 40, Birmingham Business Journal

Kenneth does the research behind the guides here: reading the studies and checking whether a claim holds up before it gets published, under our editorial guidelines. Outside Curl Centric he leads an operations organization of more than 1,000 people, and he serves on the board of Oasis Counseling for Women and Children. Curl Centric's hair typing system is the first listed reference in a peer-reviewed paper in the International Journal of Women's Dermatology, and it is cited by Wikipedia.

More about KennethAbout Curl Centric

Kira Byrd

Hey, I’m Kira

Curl Centric is run by me and my husband Kenneth. We’ve been publishing evidence-based hair care since 2008 to help you care for your curls with confidence.

More about us →
Why Your Hair Is Not Growing: free guide

Free guide

Your hair isn’t growing slowly. It’s breaking.

About a third of an inch a month on textured hair, not the half inch you often read. If your length looks stuck, your hair is breaking off about as fast as it grows in. Here are the seven causes and the weekly routine that stops them.

Free. One email a week. Unsubscribe anytime.

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Why Your Hair Isn't Growing - free guide from Curl Centric

Free 50-page guide

Your hair is already growing. The problem is keeping it.

About a third of an inch a month on textured hair, not the half inch you've read. If your length looks stuck, that's your hair breaking off about as fast as it grows in. We'll send you the seven causes of breakage and the weekly routine that stops them.

Free. One email a week after that. Unsubscribe anytime.

Written and reviewed by Kenneth and Kira Byrd Independently owned, publishing since 2008 950+ guides, fact-checked before publishing Editorial and advertising teams kept separate

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