Hair Porosity: The Secret to Having the Best Hair

Published February 21, 2024
As you get serious about taking care of your hair, you’ll discover that many factors come into play in doing it. You might hear of various hair terms that you have no idea about. Think hair porosity. There are lots of people who still don’t know this concept of hair health.
Many different terms and categories describe hair health, texture, and type. Hair porosity is the general capacity of the hair strands to absorb and retain moisture.
Understanding what it is is crucial to your hair care routine. And it is where we enter the picture. Continue reading, as we’ll give a deep discussion of hair porosity. We’ll also dive into how to determine if your hair has low or high porosity and how to take care of it. Let’s start.
What Is Hair Porosity?
Hair porosity is the mane’s ability to soak and retain moisture. It affects how well oils and moisture pass through the cuticle. The cuticle is the outermost layer of your tresses.
Hair porosity is typically divided into three broad classes.
- Low porosity. It is the case when cuticles that are close together
- Medium porosity. It is the case when cuticles that are less tightly bound.
- High porosity. It is the case when cuticles that are more widely spaced.
To fully comprehend the concept of hair porosity, it’s best to know the structure of your hair. It consists of three layers. These layers are:
1. The cuticle
It is the tough, protective outer layer of the tresses. It is made up of smaller cuticles that overlap each other. It can be compared to shingles on a roof.
2. The cortex
The cortex is the thickest layer of your mane. It compasses fibrous proteins and the pigment that gives your crowning glory its color.
3. The medulla
It is the soft, center part of your hair shaft.
Water, oils, and other moisturizing products need to be able to enter the cuticle and get to the cortex. It is for your mane to be healthy and moisturized.
Yet, if the cuticles are too close together, it’s not easy for those elements to penetrate the hair. In such an event, it will be harder for your mane to get the moisture it needs. Moreover, your hair will have difficulty retaining moisture if the cuticles are too widely spaced.
What Defines Hair Porosity?
Genetics is the main element that accounts for someone’s hair porosity. Depending on it, you can be born with naturally higher or lower porosity hair. Curly hair, in its virgin condition, is naturally higher in porosity. It is than straight hair. The curlier it is, the higher the porosity tends to be.
Yet, it is not final. Porosity alters any time the hair structure is modified. Or as we put it, damaged. The more damaged your mane is, the higher the porosity it will be. The damage usually lifts the hair cuticles.
There are several factors that can permanently influence your hair’s porosity.
- Excessive exposure to the sun, UVA, and UVB rays
- Air pollution
- Dying your locks
- Heat styling
- Bleaching your hair
How to Know if Your Hair Is Low or High Porosity
Even without doing a test, there are distinct characteristics of low and high porosity. These are the ones you can rely on.
Low porosity strands tend to dry slowly. Products like to sit on top of your hair rather than sink in quickly. Also, it takes a long time for the mane to become fully saturated with water when you wash it.
High porosity strands look and feel dry. They have excess frizz. It also dries abnormally fast.
What Is Low Porosity Hair?
Low porosity hair is a kind of hair that has a tightly bound cuticle layer with overlapping scales. It is often shiny, especially if it’s dark in color. It’s common for this hair to be relatively healthy. Yet, it can be challenging to process since it resists chemical penetration.
The main characteristics of it are:
- Moisture resistance
- Products tend to build up as opposed to absorb
- Hair dries slowly
What Is High Porosity Hair?
High porosity hair is a kind of hair that quickly absorbs moisture. Yet, it loses it just as quickly. It is because the hair’s cuticle layer has gaps or holes. It permits moisture to pass in and out quickly.
The main characteristics of it are:
- Absorbs moisture quickly
- Loses moisture quickly
- It tends to be frizzy
- Dries quickly
How to Take Care of High-Porosity Hair
1. Clean and condition hair with hydrating products
A highly porous mane needs to replenish the hair’s moisture levels. It also needs to help hair fiber hold onto the moisture you supply. It helps to use a moisturizing shampoo and conditioner system. It will introduce moisture and keep it in your hair.
For curly or coily hair, use a highly moisturizing shampoo and conditioner. Look for those that fixate on high porosity and your curl type.
2. Use for a moisturizing treatment
Aside from introducing a moisturizing shampoo and conditioner, you should also regularly lay a deep conditioning treatment to your locks. Do so once or twice a week. A moisturizing hair mask will envelop hair in intense moisture to repair damaged strands. It will renew softness.
3. Always use a heat protectant.
Using hot tools consistently is a big mistake in the making. It is especially true when you’re dealing with highly porous hair. Still, you do not need to cut blow drying or straighten your hair. What you need to do instead is reach for a heat protectant before using any of them. You can also limit how often you use heat on your head.
4. Use the LOC method when styling hair.
As previously mentioned, highly porous hair has wide-open cuticles. It will make it hard to lock moisture in. One way to keep this moisture is by following the LOC method.
Leave in conditioner first, then hair oil and another styling cream. This method calls for adding moisture deep in the strand. Then, seal it with oil. On top, add more hydration with an additional cream for the exterior of the strands.
How to Take Care of Low-Porosity Hair
1. Use a pre-poo treatment.
A pre-shampoo or pre-poo treatment is laid to your locks before shampooing. It helps give strands an additional layer of moisture. The treatment will penetrate the hair cortex after opening the tightly shut pores. It will heal hair bonds. It will add intense hydration.
2. Use the LCO method when styling hair.
To ensure your crowning glory stays moisturized all day long, employ the LCO method. Start with a hair cream to help open the hair cuticle. It will also add moisture. Then, follow up with another cream to target dehydrated strands. Finish with a hair oil to seal all the nourishing moisture.
3. Use heat when conditioning.
Heat and steam relax the hair cuticle; it permits your low-porosity hair to soak more moisture from the inside out. After shampooing, apply conditioner to your tresses. Then, cover your head with a heat cap and use a steamer on it for 15 minutes before rinsing.

Frequently Asked Questions About Hair Porosity
1. Is porosity good for your hair?
Hair porosity is neither inherently good nor bad for your hair. It’s simply a characteristic of your hair that determines how well it can soak and hold onto moisture. Understanding it can help you care for it more effectively.
2. Is low or high-porosity hair better?
Neither low nor high porosity hair is inherently better or worse. Each type has its characteristics and challenges.
3. Can low-porosity hair make it curly?
Low-porosity hair can become frizzy. It is mainly because it has tightly bound cuticles that resist moisture absorption. As it’s difficult to get moisture into the hair, it can often lead to dryness and frizz.
4. How do you fix hair porosity?
Managing hair porosity involves understanding the type of it that you have. Then, it should be treated accordingly with the right products and practices.
Understanding the ins and outs of hair health can be daunting. But one concept at a time, we’ll unlock the best state of our crowning glory. Now, we have understood what hair porosity is.

Meet The Author – Tracy Gorman
I’m Tracy Gorman, an experienced writer. I love writing about topics such as lifestyle, beauty, and health. Get in touch with me on LinkedIn.
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