What Are Cold Fusion Hair Extensions? (Explained)

There are a dizzying number of options for hair extensions: clip-in extensions, tape-in extensions, hot fusion hair extensions, and cold fusion hair extensions (to name only a few).

What are cold fusion hair extensions?

Cold fusion hair extensions use ultrasonic waves and a low-profile, keratin-based adhesive at low temperatures. They do not use heat or harsh chemicals to attach the extensions. This ensures that your hair is not damaged during the application process.

In this article, you’ll find out everything you need to know about cold fusion hair extensions.

Cold Fusion Hair Extensions: 10 Things You Need To Know

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Hair Extensions - What Are Cold Fusion Hair Extensions
Image by the author via Canva – What Are Cold Fusion Hair Extensions?

To completely understand cold fusion hair extensions, there are 10 things you absolutely must know.

1) Why Is It Called Cold Fusion Hair Extension?

This method is called “cold” because the bonds that attach the extensions to your natural hair are not exposed to any kind of heat.

Instead, a special type of ultrasonic wave is used to attach the bonds to your hair.

This method is becoming increasingly popular because it is much gentler on your hair than other methods, such as hot fusion.

2) Are Cold Fusion Hair Extensions Damaging?

If you’re thinking about getting cold fusion hair extensions, you may be wondering if they are damaging to your natural hair.

While any type of hair extension can potentially damage your hair, cold fusion extensions are less likely to cause damage than other methods, such as hot fusion or tape-in extensions.

The reason for this is that the bonding agent used in cold fusion extensions is applied at a lower temperature.

This helps to minimize heat damage.

In addition, the bonds are usually smaller and less visible than those used in other methods, making them less likely to pull on your natural hair.

As with any type of hair extension, it’s important to consult with a professional stylist to ensure that they are applied correctly and that you are using the right products to care for them. With proper care, cold fusion extensions can help you achieve the look you want without damaging your natural hair.

3) How Long Do Cold Fusion Hair Extensions Last?

Cold fusion hair extensions are a popular choice for those looking to add length and volume to their hair. But how long do they last?

According to most manufacturers, cold fusion hair extensions can be expected to last 2-4 months.

However, it is not beyond thinking that you could keep them in for up to 6 months with proper care. The key to making your cold fusion hair extensions last is to treat them gently and avoid any harsh chemicals or products that could damage the bonds.

By taking these simple steps, you can help ensure that your cold fusion hair extensions look great for months to come.

4) How Much Do Cold Fusion Hair Extensions Cost?

The truth is, the cost of cold fusion extensions varies depending on a number of factors, including the quality of the hair, the number of strands you need, and the length of your hair.

Generally speaking, cold fusion hair extensions cost between $2 and $5 per strand.

A full head of cold fusion extensions will set you back between $1500 and $3000. This may seem like a lot of money, but it’s important to remember that this price includes the extensions themselves, as well as installation and maintenance. In other words, you’ll need to budget for this expense each year.

So if you’re looking for a long-term investment in your appearance, cold fusion hair extensions are definitely worth considering.

Yes, they may be pricey upfront, but over time, they’ll save you money – and keep you looking fabulous.

5) Can You Reuse Cold Fusion Hair Extensions?

Cold fusion hair extensions are a popular choice for those looking for a long-lasting, low-maintenance option.

While they can be more expensive than other types of extensions, they can last up to three times as long. But what happens when you’re ready to take them out? Can you reuse cold fusion hair extensions?

The short answer is yes, but it takes some effort.

First, you’ll need to remove the bonding agent from your natural hair. This can be done with a clarifying shampoo or an extension-removal solution.

Next, gently remove the extensions from your hair, being careful not to pull too hard or damage your natural hair.

Once the extensions are out, wash them thoroughly with shampoo and conditioner. If they are still in good condition, you can then reapply the bonding agent and reattach them.

With proper care, you can reuse cold fusion hair extensions for up to a year.

6) Can You Wear Your Hair Up With Cold Fusion Extensions?

Yes, you can wear your hair up with cold fusion extensions.

You’ll need to allow extra time for drying and styling after a wash. This is because wet hair is more vulnerable to damage from the glue used in cold fusion extensions. To avoid damaging your extensions, always dry your hair thoroughly after washing.

This may take some getting used to, but it’s worth the effort to prolong the life of your investment.

With a little patience and care, you can enjoy beautiful, long-lasting hair extensions.

7) How Do You Sleep With Cold Fusion Extensions?

Many women worry about how they will sleep with their new cold fusion hair extensions.

The good news is that there are a few simple steps you can take to ensure a comfortable night’s sleep and prevent your extensions from matting.

Before going to bed, put your hair up in pigtails or a high ponytail. This will keep your hair from tangling overnight and will also help to prevent matting.

You may also want to consider sleeping with a satin pillowcase, as this will help to reduce friction and prevent your hair from tangling.

With just a few precautions, you can enjoy a comfortable night’s sleep with your new cold fusion extensions.

8) How Do You Wash Your Hair With Cold Fusion Extensions?

We all know the drill: shampoo, rinse, repeat.

But if you’ve got cold fusion extensions, there are a few extra steps you need to take to ensure that your hair is getting clean without damaging the bonding agent.

First things first: take showers standing up instead of leaning over the tub or showering in a seated position.

This will help to prevent the extension from getting wet and prevents accidental tangles. When shampooing, use a mild cleanser and be sure to rinse thoroughly.

Avoid scrubbing too hard, as this can cause the extension to loosen.

Instead, focus on massaging the scalp with your fingertips and letting the suds run down the length of your hair. Once you’re done shampooing, apply conditioner from mid-shaft to ends and let it sit for a few minutes before rinsing.

9) Are Cold Fusion Hair Extensions Good for Thin Hair?

Many women struggle with thinning hair, and it can be a difficult problem to solve.

If your hair is naturally thin or has become thin due to damage, you may be considering cold fusion hair extensions as a way to add volume and thickness. Cold fusion extensions are attached using a lightweight keratin-based adhesive, and they are considered to be one of the safest and most gentle methods of extension application.

However, there are a few things you should keep in mind.

First, make sure you go to a professional stylist who has experience applying extensions to thin hair. They will be able to determine whether your hair is strong enough to support the weight of the bonds and extensions, and they will also be able to select the best type of extension for your needs.

In general, lighter-weight extensions are preferable for thin hair, as they are less likely to cause undue damage.

Secondly, you’ll need to take extra care of your extensions and your scalp, as both can be more sensitive when your hair is thin.

10) Are Cold Fusion Hair Extensions Worth It?

If you can afford it, cold fusion hair extensions are worth it.

One of my friends, Cassie, got them after her divorce.

Here is what she told me:

I remember the day my divorce was finalized. I felt like I had been through the wringer emotionally and mentally.

I was exhausted, both physically and emotionally. As I walked out of the courthouse, I felt like I had nothing left to give. I didn’t know how I was going to pick up the pieces and move on with my life. In that moment, I decided that I needed to do something for myself – something that would make me feel good about myself again.

That’s when I decided to get cold fusion hair extensions.

I’m not going to lie – they were expensive. But they were also worth every single penny. Getting my hair done made me feel like a new woman. It gave me the confidence boost I so desperately needed. Suddenly, I felt like I could take on the world again. And that’s exactly what I did.

My divorce was the turning point in my life, but getting cold fusion hair extensions was one of the best decisions I ever made.

They helped me to see myself in a new light – literally – and gave me the strength to start over again. If you’re considering cold fusion hair extensions, I say go for it – you won’t regret it!

Here is a good video that shows how the cold fusion hair extension application process:

YouTube Video by HairPlaceNYC – What Are Cold Fusion Hair Extensions?

Cold Fusion Hair Extensions Pros and Cons

LightweightDifficult to DIY
Long-lastingRequires a Professional
Prevents burnsCould damage your hair
Strong gripPotentially high-maintenance
Cold fusion hair extensions pros and cons


Cold fusion hair extensions offer a number of advantages over other types of extensions.

First, the process is much gentler on the hair and scalp. There is no need for hot glue or tape, which can cause burns. Second, cold fusion extensions are much lighter than other types of extensions, making them more comfortable to wear.

Third, they are also much more durable, lasting up to three times longer than other types of extensions.

Fourth, cold fusion extensions have a strong grip and are less likely to slip out.

Finally, they are also less likely to damage your natural hair. If you’re looking for a safe and gentle option that will give you long-lasting results, cold fusion hair extensions are a great choice.


It’s important to be aware of the potential downsides of cold fusion hair extensions.

First of all, they can be quite expensive.

In addition, you’ll need to find a professional stylist who is experienced in this type of extension, as it’s not something that can be easily done at home.

Once you have the extensions in place, they can be high-maintenance, requiring regular care and styling.

Finally, there is some risk of damage to your natural hair with this type of extension, so it’s important to weigh all the pros and cons before making a decision.

What Are Cold Fusion Hair Extension Machines?

A cold fusion hair extension machine is a device that uses ultrasonic waves to bond hair extensions to your natural hair.

The machine has a control box with an applicator attachment.

The applicator is placed on the section of hair where the extension will be attached. The ultrasonic waves create a vibration that melts the bonding material on the extension, which fuses it to your natural hair.

How To Remove Cold Fusion Hair Extensions

In most cases, you will need to visit a professional stylist in order to have them removed safely.

However, there are some methods that you can use at home in order to loosen the bond between the extension and your natural hair. One popular method is to apply a clarifying shampoo to your hair and let it sit for several minutes before rinsing it out.

You can also try using a cotton ball soaked in rubbing alcohol. Gently rub the cotton ball over the bond between your hair and the extension until it begins to loosen.

Once the bond is loosened, you should be able to gently slide the extension out of your hair.

If you are having difficulty removing the extension, you can always consult with a professional stylist for assistance.

You should plan for removal to take 1-3 hours.

Final Thoughts: What Are Cold Fusion Hair Extensions?

I’d like to thank my wife and sister for helping me with the research for this article.

When I first told them I was writing a post about, “What are cold fusion hair extensions?” they both laughed. Then they agreed to make sure what I wrote was as good and accurate as possible.

Thanks for reading!

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