Last Updated on March 26, 2025 by Giorgia Guazzarotti

remove silicone buildup from hair

Silicone build up is a NON-problem.

There, I said it. If you’ve stopped using conditioners or styling products with silicones because you thought they’d build up on your hair, you can go back to them now.

I get it, you’ve heard the horror stories: “Silicones will suffocate your hair!” or “It’ll weigh your strands down!” People make it sound like silicone buildup is some sort of hair death sentence. But here’s the truth: it’s not as big of a deal as everyone makes it out to be. So if you’ve been staying away from some of your fav products for no good reason, it’s time to let that worry go.

Not convinced? Hear me out:

What Are Silicones?

Silicones come from silica, which is basically a fancy name for a mineral that’s all over the Earth’s crust. You’re probably wondering how to spot them in your products — it’s easy! They usually end in “cone” or “siloxane” (yup, it’s that simple). Here are a few you might recognize on your labels:

  • Amodimethicone
  • Cyclomethicone
  • Cyclohexasiloxane
  • Cyclopentasiloxane
  • Dimethicone
  • Phenyl trimethicone

Why Are The Haircare Benefits Of Silicones?

Silicones can’t actually penetrate your hair. They just coat the surface, which means they’re not going to mess with the inside of your strands. Instead, they create this protective layer that makes your hair look and feel better, without causing any long-term damage.

This coating action actually has a ton of benefits:

  • It makes hair softer and smoother: Silicones do their thing by smoothing the cuticle, which is basically the outer layer of your hair, leaving it feeling super soft and silky. Bye-bye, frizz!
  • It makes hair much easier to style: You know that struggle with tangled, knotty hair? Silicones help reduce that by giving your hair some slip, making it way easier to comb through, style, and manage.
  • It seals in split ends: Okay, it won’t fix split ends for good, but it does a fantastic job of temporarily sealing them up so they’re not as noticeable. Think of it as a little band-aid for your hair.
  • It smoothes out cuticles so your hair shines more: The smoother the cuticle, the more light your hair reflects. And who doesn’t want that glossy, shiny hair? Silicones help lock in that shine by sealing the hair’s outer layer.
  • It protects hair from heat from blowdryer and styling tools: One of the best parts about silicones is that they act like a protective shield. They help keep your hair safe from the heat damage that comes from blow-drying, straightening, or curling. So you can style away without as much damage.

Related: Are Silicones Bad For Skin And Hair?

Why Do Silicones Buildup In Hair?

Let’s dig a little deeper into that last point. Silicones protect hair from damage by forming a protective barrier around it. But how does that work, exactly? Let me break it down for you.

When hair is damaged (like from heat, harsh weather, or over-styling), the outer layer of the hair (called the cuticle) opens up. This little opening allows moisture to escape, and once moisture leaves, your hair starts to get dry, brittle, and prone to breakage. It’s like your hair’s getting dehydrated, which we all know is no fun.

But here’s the thing: silicones swoop in and create a barrier around your hair, kind of like wrapping it in a cozy little blanket. This helps lock in moisture so your hair doesn’t get dry and brittle. Think of it as your hair’s bodyguard, protecting it from all that heat from blow dryers, flat irons, and curling wands. It keeps your hair from getting fried and looking frazzled.

Now, here’s the kicker. For that protective shield to do its job, the silicones gotta stay put on your hair. And over time, they can start to build up a little. It’s not a big deal, though — it just means your silicones are doing their job and keeping your hair safe. But if you’re layering a ton of products or skipping washes, that buildup can sneak up on you and make your hair feel a little heavy or greasy.

How Much Buildup Do Silicones Cause?

That depends on several factors: the type of silicone you use, how much you use it, and how often.

Cyclomethicone, for example, is a speedy little silicone. It evaporates off your hair pretty quickly. It never builds up. It’s like the ninja of the silicone world, in and out without leaving a trace. On the other hand, Dimethicone is one of the heaviest silicones out there, and it’s the one that stays around until you wash it off. So, if you’re using that, it might stick around a bit longer, but that doesn’t necessarily mean your hair is doomed.

Even so, you may never feel the buildup. I don’t. I wash my hair every other day (it’s oily and I can’t wait too long between washes), so before I slather on a new layer of silicones-laden conditioner, the old one has already gone off the drain.

If you wait longer between washes, or like to use a ton of haircare products, silicones will build up much faster. You’ll notice when that happens. You hair starts feeling heavy, loses volume, and looks greasy. It’s not damaged. It just needs a good wash.

How To Remove Silicone Buildup From Hair

The secret to easily remove silicone buildup from hair? A good old wash. Forget co-washing or no poo. That won’t work. What you need is a shampoo with surfactants.

Now, you might be wondering: what the heck are surfactants? A group of ingredients that helps water mix with oils and dirt, so they can easily be rinsed away. They’re the cleaning powerhouses in your shampoo, and they help clear away all the buildup that’s stuck on your hair.

Unfortunately, surfactants don’t have the best reputation either. The problem? Some surfactants, like sodium lauryl sulfate (SLS), can be very irritating. But here’s the thing. Something that needs to remove dirt stuck to your body can’t be too gentle. If it were, you’d have to spend ages scrubbing your body. You’d irritate your skin, and some of the dirt would still be stuck to it!

Of course, surfactants shouldn’t be harsh and irritating either. You need to find a balance. That’s why you should stay away from shampoos with sodium lauryl sulfate, and opt for gentler alternatives, like sodium laureth sulfate, ammonium laureth sulfate, or cocamidopropyl betaine. These are all great at getting rid of silicone buildup without being super harsh on your hair or scalp.

Wash your hair regularly with a shampoo that contains these ingredients and you won’t have to deal with silicones buildup on your hair.

P.S. For best results, choose a shampoo without silicones. A 1994 study has found that such a shampoo can remove up to 90% of the residue from a 2-in-1 shampoo and conditioner!

Related: Should You Stop Using Shampoos With Sulfates? 

What If You Have Curly Hair?

Look, I’m a huge fan of silicones. My fine, straight hair digs them. They make it softer. Shinier. Easier to style. And then I shampoo them away when I don’t need them anymore.

But if you have a different hair type? Just like a moisturiser for dry skin may be too rich and pore-clogging for oily skin, the silicones and surfactants straight hair loves may not agree with curly hair.

If that’s you, I recommend you check out the Curly Girl Method by Lorraine Massey. It’ll tell you how to cleanse, condition and style your curly hair without damage. It’s a whole guide on how to cleanse, condition, and style curly hair without any damage. If you want to give your curls all the love they deserve, this method is the way to go. Trust me, your curls will thank you!

The Bottom Line

Silicone buildup isn’t as big of a deal as people make it out to be. If you’re washing regularly, you’re good to go! Silicones protect your hair, make it shiny, and keep it smooth. If you notice buildup, just shampoo it away. Done.