Cold Hair Dryer vs. Hot Hair Dryer: When to Use Each for the Perfect Blowout

“My arm muscles are made for 10% texting, 30% Instagramming, and 60% blow-drying.” Phew!

Manya Makhija

Manya Makhija

15 Mar ‘25
UPDATED ON 12 FEB ‘25
Blow Drying Tips Hot vs Cold Air Hair Styling Heat Protectant
Blow Drying Tips Hot vs Cold Air Hair Styling Heat Protectant

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If you’re someone who swears by a good blowout, you know the power a blow dryer holds. Whether you’re styling for a big night out, a work meeting, or just drying your hair post-shower, your blow dryer is likely a go-to tool. But have you ever paid attention to that cool air button? If not, you’re missing out on a key element of heat styling that could make all the difference in how your hair looks and feels.

Hot Air Dryer: When & Why to Use Heat While Blow Drying

The hot air setting on your blow dryer is what does the heavy lifting. It alters the structure of your hair, making it easier to mold into your desired style—whether you’re straightening, curling, or adding volume.

  • Straightening Hair: If you want a sleek, polished look, hot air helps relax the natural wave or curl in your hair, making it easier to straighten with a brush.
  • Adding Volume & Bounce: A round brush and hot air are a dream team when it comes to achieving a voluminous, salon-worthy blowout.
  • Styling Thick or Coarse Hair: If your hair is thick or coarse, higher temperatures help speed up the drying process and allow for better control over frizz.

Pro Tip

Always use a heat protectant before applying heat to your hair. The Tresemmé Keratin Smooth Heat Protection Spray is a great option to shield your strands from damage while keeping them smooth and shiny.

Cold Air Hair Dryer Benefits: Why You Should Finish with Cool Air

If hot air shapes your hair, cold air sets it. Think of the cool setting as the final step that locks in all your hard work, offering cold air hair dryer benefits like enhanced shine, reduced frizz, and long-lasting styles.

  • Sealing the Cuticle: Cold air smooths the hair shaft and reduces frizz by closing the cuticle, making your style appear more polished.
  • Locking in Your Style: After using hot air to shape your hair, a blast of cool air helps “freeze” the style in place, making it last longer —perfect for hairstyles for frizzy hair that need extra hold and smoothness.
  • Protecting Hair Health: Excessive heat can weaken your hair over time. Switching to cold air towards the end of your blow-drying routine minimizes damage and adds shine.

Pro Tip

If your hair tends to get frizzy, finish with a cold air blast and apply a smoothing serum like the Dove 10-in-1 Deep Repair Treatment Hair Mask to keep flyaways in check.

Dove 10 in 1 Deep Repair Treatment Hair Mask for damaged hair

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Cold Hair Dryer vs Hot Hair Dryer: Which One Is Right for You?

When it comes to drying and styling your hair, both hot and cold hair dryers offer distinct benefits. Understanding their differences can help you make the best choice for your hair type and desired results.

Hot Hair Dryer: Styling and Shaping

A hot hair dryer is your go-to tool for shaping and styling your hair. The heated air speeds up the drying process, allowing you to quickly achieve your desired look. It’s ideal for:

  • Quick drying: Hot air speeds up the evaporation of moisture, so your hair dries faster.
  • Volume and texture: Hot air is great for creating volume and texture, particularly when you use it with a round brush or diffuser.
  • Smoothing: It can smooth out frizz and help control unruly hair when used with the right technique.

Caution

Prolonged use of hot air can potentially cause heat damage, especially if your hair is fine or prone to dryness.

Cold Hair Dryer: Sealing and Setting

On the other hand, a cold hair dryer uses a cooler setting to lock in your style after using hot air for drying. While cold air doesn't speed up the drying process, it offers several benefits:

  • Sets your style: Cold air helps “freeze” your hairstyle in place, adding lasting hold and keeping your style intact for longer periods of time.
  • Reduces frizz: By sealing the hair cuticle, cold air helps smooth the hair, reducing frizz and flyaways, making it especially beneficial for those with frizzy or curly hair.
  • Enhances shine: Cold air adds a natural shine by flattening the cuticles, which reflect more light.
  • Hair protection: Cold air helps lock in moisture and can prevent heat damage, keeping your hair healthy and hydrated.

Choosing the Right Dryer for Your Hair Type

  • For fine or damaged hair: Opt for a cold or low-heat setting to avoid excessive damage. Use cold air for the final step to protect your hair and give it a smoother finish.
  • For thick or frizzy hair: Hot air is great for drying and styling, but finish with a blast of cold air to lock in your style and reduce frizz.
  • For curly hair: The cool setting can be a game-changer to define your curls without making them frizzy or flat.

How to Use a Hot and Cold Hair Dryer for the Perfect Blowout

To maximize the benefits of both hot and cold air, follow this step-by-step guide:

  1. Start with heat protection. A good heat protectant prevents damage and keeps hair soft.
  2. Use hot air to shape your hair. Whether you’re adding volume, curling, or straightening, the warm setting helps mold your strands.
  3. Switch to cold air to set the style. Once you’ve achieved your desired look, lock it in with a cool air blast.Blow drying with cold air helps seal the hair cuticle, reducing frizz and giving your style lasting hold.
  4. Apply a finishing product. A lightweight hair serum or anti-frizz spray can keep your style in place and add shine.

When used correctly, your blow dryer can be a powerful styling tool without compromising hair health. Use hot air to mold your hair into shape and cold air to lock everything in place. And don’t forget to protect your hair with the right products!

Now that you know the difference, are you ready to level up your blowout game?

FAQs: Cold Air Hair Dryer vs Hot Air

Is blow drying with cold air better for hair health?

Yes, blow drying with cold air is generally better for hair health. Cold air helps seal the hair cuticle, reducing frizz and preventing heat damage. It locks in moisture and adds shine without exposing your hair to excessive heat, which can cause dryness and brittleness over time.

Can I dry my hair using only cold air?

While you can use cold air to set and lock in your style, drying your hair solely with cold air might take a long time. Cold air doesn't speed up the drying process like hot air does, so it’s best used after using hot air to shape and dry your hair. For the most efficient drying, it’s recommended to use hot air first and finish with a cold blast.

Is a cold air hair dryer good for everyday use?

Yes, a cold air hair dryer is excellent for everyday use, especially if you're concerned about heat damage. After drying and styling with hot air, using cold air can help maintain healthy hair, reduce frizz, and seal moisture in your strands. Many modern dryers come with a cool setting, making it easy to incorporate cold air into your routine.

Is hot or cold air better for fine hair?

For fine hair, it's best to use a combination of both hot and cold air. Hot air is great for shaping and adding volume, while cold air can help seal the cuticle and prevent flatness or excess frizz. If you’re worried about heat damage, you can use lower heat settings, followed by a cold air blast to protect your fine hair.

Does cold air help with scalp health?

Yes, cold air can be beneficial for your scalp. The cool blast can improve blood circulation, which may promote a healthier scalp. Cold air also helps to prevent dryness and irritation that can be caused by hot air. It’s particularly useful for those with sensitive scalps or those prone to dryness.

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Hot vs Cold Air Hair Shaping Cold Air Benefits Heat Protectant
Hot vs Cold Air Hair Shaping Cold Air Benefits Heat Protectant
Manya Makhija

Manya Makhija

Manya Makhija is a fashion and lifestyle writer. You’ll find her either scuba diving or consuming fashion over a cup of coffee.