Can I Use Deep Conditioner on Extensions?


Countless people love extensions because they allow us to experiment with different hairstyles without ruining our natural hair. But just like your natural hair needs routine care, so do your extensions.

Outside of washing and conditioning your extensions, you may consider deep conditioning them to infuse them with nutrients and keep the hair smooth and manageable. But is that a good idea? That’s what we’ll address in this article. By the end, you’ll know whether you can use deep conditioner on extensions. 

You Can Use Deep Conditioner on Human Hair Extensions

You can 100% use deep conditioner on human hair extensions as necessary. Just like the hair on your head, human hair extensions require routine care to look and feel their best. 

Just be careful with synthetic hair extensions. They aren’t natural hair, so they don’t have a hair shaft or cuticles to open up and receive the moisture and nutrients from the deep conditioner. So, they don’t absorb deep conditioner the way actual human hair can. 

You’ll need to look into alternate methods to fix synthetic extensions that are overly tangled, frizzy, or rough-looking. Applying deep conditioner on them would be a waste of time.

Benefits of Using Deep Conditioner on Human Hair Extensions

Now that you know you can use deep conditioner on human hair extensions, it’s time to determine whether you should. There are several benefits of using deep conditioner on human hair extensions, and they include: 

  • Deep-conditioned extensions are more likely to retain their texture, shine, and moisture levels. 

  • Regular deep conditioning can make your extensions last longer. 

  • Giving your extensions a deep conditioning session can make them easier to manage. 

Potential Issues With Using Deep Conditioner on Extensions 

Deep conditioning your human hair extensions isn’t a foolproof thing. A couple of issues could come up in the process.

First, if you’re wearing tape-in or glue-in extensions, applying the deep conditioner on your roots could loosen the adhesive and ruin your style. Getting deep conditioner on your roots while wearing a sew-in can result in build-up at your roots and in your braids. The moisture left behind could invite mold and mildew to grow.  In these cases, you’d apply the deep conditioner only on the mid-lengths and ends. 

In cases where your weave is already properly moisturized, applying a moisturizing deep conditioner to it can lead to over-moisturization. So, it’s crucial to survey the health and condition of your extensions before using deep conditioner. 

Choosing a Deep Conditioner for Your Extensions

When it comes to choosing a deep conditioner for your extensions, you have a myriad of options. You can use just about any deep conditioner that addresses the issues you’re having with the extensions. But it’s important to avoid deep conditioners that contain alcohol, as they can very quickly dry the extensions out. 

So, there you have it - you can use deep conditioner on extensions. But you’ve got to be careful about how you go about it, and if you’re wearing the extensions on your head, be safe and avoid applying the product to your roots. We hope you found the information you were looking for, and we wish you the best with your extensions. 




Author: Andrea Reyes

Andrea is a mother, wife, writer, and natural hair enthusiast of 15 years. Currently on her natural hair journey, she’s been trying countless products and techniques to understand and embrace her natural hair. She is the creator of, a new website featuring informative articles that share tips, tricks, and techniques aimed to help others learn to love their hair through proper hair care. She writes with the hope of making hair care easier to understand and implement.