4 Effects of Applying Oil on Wet Hair (that you should know)

woman shows coconut oil on her finger

The negative effects of applying oil on wet hair are:

  • Negative effect 1: Your hair will have less shine.
  • Negative effect 2: You won’t be able to control frizz.
  • Negative effect 3: You won’t protect your hair against UV rays, and that protection is paramount during summer.


Of course, it’s not all bad news.

  • Positive effect: you’ll be able to detangle your hair more easily.


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When you sort out these effects on the scales, the truth is that  applying oil on wet or damp hair has very few positive effects. 


That’s why I recommend that most of my clients use oil on dry hair. That’s the truth.

But it’s a truth that isn’t well known.

Of course, everyone talks about how using argan oil before bleaching hair is an excellent idea.


Others talk about olive oil being excellent for repairing dry and damaged hair. And then there are those who advocate castor oil for its almost miraculous hair growth properties.


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But with so much information going around, it’s easy to lose sight of what’s important. And what’s important is that you know how to use oil on your hair correctly.

 And when you’re going to apply oil, you need to understand whether your hair should be damp or dry. 


Ready to take the blindfold off?

Let’s start with the least pleasant part: the negative effects of using oil on wet hair.

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3 negative effects of applying oil on wet hair that you shouldn’t ignore

woman from back shows frizzy hair

Why shouldn’t you ignore these effects?

Because if you ignore them, two things can happen:

  • You won’t achieve what you want.
  • You may worsen whatever you want to improve in your hair.


Did you just fall out of your chair? Don’t worry, it’s no big deal. But you need to know that while oils are great products for moisturizing and repairing hair, it’s also important to know how to use them.

Let’s start with the shine of your hair.


If you apply oil to wet hair, your hair will lose its shine

Yes, that’s right. Because  ]if you want to use oil to make your hair shinier, you must apply it to dry hair . Why? The fatty acids in oil aren’t water-soluble.

What does this mean?


It means that oil doesn’t mix with water. So when you apply oil to wet hair, it will go greasy. And oily hair is very different from shiny hair.


If you apply oil on wet hair, you won’t be able to control frizz

Because if you want to get rid of frizz, you should apply oil on  dry hair. 

¿Por qué?


First, let’s look at what causes frizz.

Frizz shows up when hair is damaged. It’s very easy to distinguish because you’ll immediately see loose hairs that stick out.

When hairs are dry, it’s because they have lost moisture. Therefore, these hairs have also lost weight, and because they’re lighter, they lift up.

But if you apply oil on dry hair, it will form a film, giving it the weight it needs and getting rid of frizz.


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If you apply oil on wet hair, the sun’s rays will damage your hair

girl with brown hair under the sun

Because in reality, if you want to protect your hair from the sun’s rays, you should apply oil on dry hair to achieve two things:

  • Prevent the sun from dehydrating your hair.
  • Protect its color, whether your hair is natural or color-treated.

When you apply oil to dry hair, a protective film is formed, which protects the color and moisture of your hair.


So does applying oil to wet hair have any positive effects?

Yes, and that's what I'll talk about below.


The positive effect of applying oil to wet hair

using oil on wet hair

If you want to maintain healthy, hydrated hair, repair and nourishment should be part of your beauty routine. And of course, you can include coconut oil, argan oil, or flaxseed oil in that routine.

But there are very few cases where I recommend using oil on wet hair. Well, to be more precise, I only recommend using oil on wet hair in one case.


 You can use oil on wet hair if it's really difficult to detangle. 


Because the oil will lubricate each strand of hair, making it easier to brush or detangle. In addition, as you detangle your hair, you'll activate the blood supply and the nutrients in the oil will be absorbed more quickly.

If your hair is curly, I recommend you use oil on wet hair, because you'll break less hair when detangling it.



I think you probably understand now why I recommend most of my clients apply oil on dry hair. Because using oil on wet hair really has very few benefits.

But knowing both the negative and positive effects of using oil on wet hair will allow you to take full advantage of all the benefits of natural oils for your hair.

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