H E A D S T A R T S H O P

Heat Protection Explained: Do You Really Need It?

If you regularly use a hair dryer, straightener, curling wand or other heated styling tools, you have probably heard that you should be using heat protection. But what does it actually do, and is it really necessary?

The short answer is yes. If you use heat on your hair, heat protection is worth adding to your routine.

Heat styling can make it easier to create smooth, shiny, bouncy or curly styles, but repeated exposure to high temperatures can leave hair feeling dry, brittle and more prone to breakage. A good heat protectant helps reduce the impact of that heat, while many formulas also offer extra benefits such as smoothing, frizz control, shine and hydration.

Here is everything you need to know about heat protection, why it matters and how to choose the right product for your hair.

How Does Heat Protection Work?

Heat protectants are designed to help protect your hair when using heated styling tools. They work by forming a protective layer over the hair, helping to reduce the impact of high temperatures during styling.

When hair is exposed to heat, particularly at high temperatures or repeatedly over time, it can lose moisture and become more prone to dryness and breakage. The outer layer of the hair can also become rougher, leaving hair looking dull or feeling less smooth.

A heat protectant does not make your hair completely immune to heat damage, but it can help minimise the stress caused by heat styling.

Think of it as an extra layer of protection between your hair and your favourite styling tools.

Many modern heat protection products also offer additional benefits, such as helping to smooth frizz, improve manageability, add shine or condition the hair. This means you can protect your hair while also helping create the finished style you want.

Do You Need Heat Protection If You Only Blow Dry?

Yes. Hair dryers use heat too, so heat protection is still worthwhile if you regularly blow dry your hair.

While a hair dryer generally distributes heat over a larger area than a straightener or curling wand, repeated exposure can still contribute to dryness and damage.

This is particularly important if you follow your blow dry with another heated tool, such as a straightener or curling wand.

Which Styling Tools Need Heat Protection?

All of them.

Hair dryers, straighteners, curling wands and heated brushes all expose your hair to heat. The higher the temperature and the more frequently you use a tool, the more important heat protection becomes.

Straighteners and curling wands deserve particular attention because they apply concentrated heat directly to the hair.

You may also want to take extra care with heat styling if your hair is:

  • Fine or fragile
  • Bleached or highlighted
  • Coloured
  • Dry or damaged
  • Naturally curly or textured
  • Already prone to breakage

How to Use Heat Protectant Correctly

Using a heat protectant is simple, but how you apply it can make a difference.

1. Apply It Before Heat Styling

Heat protection should be applied before your heated styling tool comes into contact with your hair.

Many heat protectants are designed to be applied to damp hair before blow drying. Others can be used on dry hair before straightening or curling. Some products can do both.

Always check the directions on your specific product to make sure you are using it correctly.

2. Distribute It Evenly

Applying product to only the top layer of your hair will not provide even protection.

Section your hair if needed and make sure the product is distributed through the areas you are going to style. Pay particular attention to the mid lengths and ends, as these areas are often older and may have experienced more exposure to colouring, brushing and heat.

If you are using a spray, hold it far enough away to create a light, even mist rather than saturating one section.

3. Don't Over Apply

More product does not necessarily mean more protection.

Applying too much can leave some hair types feeling heavy or weighed down. Follow the recommended amount for your particular product and adjust based on your hair length and thickness.

Fine hair will often benefit from a lightweight spray, while thicker, drier or more textured hair may prefer a richer cream or leave in treatment.

4. Follow the Product Directions

Not every heat protectant is used in exactly the same way.

Some are designed for damp hair, some for dry hair and some can be used at different stages of your styling routine. Some are also designed to provide additional benefits such as conditioning, smoothing or strengthening.

Always check the product directions so you get the most from your heat protectant.

Choosing the Right Heat Protectant for Your Hair

The best heat protectant for you depends on your hair type and what you want from your styling routine. Fine hair may need lightweight protection that will not weigh it down, while dry or damaged hair can benefit from products that offer extra conditioning and strengthening benefits.

Here are some of our favourite heat protection products for different hair types.

 

For Fine or Thin Hair

If your hair is fine or thin, look for a lightweight heat protectant that helps shield your hair from styling heat without leaving it feeling heavy or flat.

Our recommendations:

 

For Coloured Hair

Coloured hair can be more vulnerable to dryness and damage, particularly when it is regularly exposed to heat styling. Look for a heat protectant that works alongside your colour care routine to help keep hair smooth, healthy and manageable.

Our recommendations:

 

For Dry or Damaged Hair

If your hair feels dry, brittle or damaged from colouring, bleaching or regular heat styling, look for a product that combines heat protection with conditioning or strengthening benefits.

Our recommendations:

  • K18 HeatBounce 118ml – a heat protective treatment designed to help protect hair from high temperatures while supporting the strength and resilience of damaged hair.
  • Redken Extreme Play Safe Treatment 200ml – a leave in treatment that helps protect damaged hair from heat while reducing the risk of breakage and helping improve the overall condition of the hair.
  • Redken Acidic Bonding Concentrate Leave In Treatment 150ml – a leave in treatment that helps strengthen and condition damaged hair while providing heat protection, making it a great choice for hair that needs extra care.

 

For Curly or Frizzy Hair

If your hair is curly or prone to frizz, look for a heat protectant that also helps smooth, condition and manage the hair without compromising its natural texture.

Our recommendations:

What Else Can You Do to Reduce Heat Damage?

Heat protection is an important step, but it is only part of caring for your hair when you regularly heat style.

A few simple changes can help reduce unnecessary heat exposure:

Use the lowest effective temperature
You do not always need your styling tools at their highest setting. Use the lowest temperature that gives you the result you want.

Avoid repeated passes
Try to style each section efficiently instead of repeatedly going over the same area with your straightener or curling wand.

Keep your hair dryer moving
Avoid concentrating the heat on one section for too long.

Don't use hot tools on wet hair
Unless your tool is specifically designed for use on damp hair, make sure your hair is fully dry before using straighteners or curling wands.

Give your hair a break
You do not need to completely stop heat styling, but reducing how often you use high heat can give your hair a break.

Keep your hair conditioned
Using the right conditioner and regular treatments can help maintain softness, manageability and the overall condition of your hair.

So, Do You Really Need Heat Protection?

If you regularly blow dry, straighten, curl or diffuse your hair, yes, heat protection is worth using.

It will not make your hair completely immune to heat damage, but it can help reduce the impact of regular styling. Choose a formula suited to your hair type, use it consistently and avoid unnecessarily high temperatures.

Looking after your hair does not mean giving up your favourite styling tools. It means using them a little more carefully.

Frequently Asked Questions

Does Heat Protectant Really Work?

Yes. Heat protectants are designed to help reduce the impact of heat styling by creating a protective layer over the hair. They cannot prevent all heat damage, so using sensible temperatures and avoiding excessive heat is still important.

Should I Use Heat Protectant on Wet or Dry Hair?

It depends on the product. Many heat protectants are designed for use on damp hair before blow drying, while others can be used on dry hair before straightening or curling. Always check the directions on your specific product.

Do I Need Heat Protection for a Hair Dryer?

Yes. Hair dryers expose your hair to heat, so using a heat protectant before regular blow drying is recommended.

Can I Use Heat Protectant Every Day?

Yes. If you use heat every day, you can use heat protection every time you style your hair. Choose a product that suits your hair type and avoid applying more than necessary.

Does Heat Protectant Make Hair Greasy?

It should not when used correctly. If your hair feels greasy or weighed down, you may be applying too much product or using a formula that is too heavy for your hair type.

Can I Use Heat Protectant Before Straightening My Hair?

Yes. Apply a heat protectant suitable for use before straightening and make sure your hair is completely dry before using your straightener.

What Is the Best Heat Protectant for Fine Hair?

Fine hair generally benefits from a lightweight formula that protects against heat without weighing it down. Products such as ghd Bodyguard Heat Protect Spray for Fine & Thin Hair are specifically formulated with the needs of fine and thin hair in mind.

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