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July 11, 2023 3 min read

When it comes to caring for your hair, understanding its unique characteristics is crucial. One essential factor to consider is hair porosity. Hair porosity refers to your hair's ability to absorb and retain moisture. It plays a significant role in determining which hair products and treatments will work best for you. In this blog post, we will explore the concept of hair porosity, its different types, and why knowing your hair porosity level is important when selecting hair products.

Understanding Hair Porosity

Hair porosity is determined by the structure of the hair cuticle, the outermost layer of the hair shaft. The cuticle consists of overlapping layers of cells that can either be tightly closed, partially raised, or widely open. These variations in the cuticle structure affect how well your hair absorbs and retains moisture.

Types of Hair Porosity

There are three main types of hair porosity: low porosity, normal porosity, and high porosity. Here's a closer look at each type:

  1. Low Porosity: Hair with low porosity has a tightly closed cuticle, making it more resistant to absorbing moisture. This can result in product buildup, difficulty in moisture penetration, and longer drying times.

  2. Normal Porosity: Hair with normal porosity has a moderately raised cuticle, allowing for a good balance of moisture absorption and retention. This hair type typically responds well to a wide range of hair products.

  3. High Porosity: Hair with high porosity has an open cuticle, making it highly absorbent but also prone to moisture loss. High-porosity hair often appears dry, frizzy, and damaged.

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Importance of Knowing Your Hair Porosity

Knowing your hair porosity level is essential for several reasons:

  1. Product Selection: Understanding your hair porosity helps you choose the right hair products. For low-porosity hair, lightweight products that can penetrate the cuticle easily without causing buildup are ideal. High-porosity hair benefits from richer, more moisturizing products to help seal in moisture.

  2. Moisture Retention: Hair porosity affects how well your hair retains moisture. Low-porosity hair requires extra effort to ensure adequate hydration, such as using heat or steam during deep conditioning. High-porosity hair benefits from products that help seal the cuticle and prevent moisture loss.

  3. Preventing Damage: Hair with high porosity is more prone to damage and breakage. By using products specifically designed for high-porosity hair, you can minimize the risk of further damage and promote healthier hair.

  4. Styling Techniques: Different hair porosity levels respond differently to styling techniques. Understanding your hair porosity helps you choose the appropriate techniques that will yield the best results. For example, low-porosity hair may benefit from using lighter oils and heat for better product absorption, while high-porosity hair may require more moisture-sealing techniques.

  5. Overall Hair Care Routine: Knowing your hair porosity allows you to tailor your hair care routine to meet the specific needs of your hair. From washing and conditioning to styling and treatment choices, you can make informed decisions based on your hair porosity, leading to healthier and more manageable hair.

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How to Test Your Hair Porosity

To test your hair porosity, you simply take a clean piece of shed hair on your next wash day, and drop it in a clear glass of water. If the hair strand floats at the top of the water, your hair is low porosity. If the hair strand sinks almost immediately, you have high porosity hair. If you hair floats initially but then begins to sink slowly, you hair is normal porosity hair.


Understanding your hair porosity is a game-changer when it comes to selecting the right hair products and implementing an effective hair care routine. By identifying your hair porosity level, you can address the specific needs of your hair, maximize moisture retention, and prevent damage. Take the time to assess your hair porosity and make informed decisions about the products and techniques that will help your hair thrive. Remember, every strand is unique, and tailoring your approach to your specific porosity level will lead to healthier, more beautiful hair.

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