How often you should wash your hair for optimal health and vitality.

How often you should wash your hair for optimal health and vitality.

How often should you wash your hair: tailoring your hair washing routine to your hair type for optimal health and vitality.


Hair care is a deeply personal routine that varies significantly from one individual to another. One size does not fit all, especially when it comes to how often you should wash your hair. An essential factor that should guide your hair washing frequency is hair porosity. Hair porosity refers to your hair's ability to absorb and retain moisture. Understanding whether you have low, medium, or high porosity hair can help you determine the right frequency for washing your locks to keep them healthy, vibrant, and beautiful.

What is Hair Porosity?
Hair porosity is determined by the structure of the cuticle layer of your hair, which is the outermost part of the hair shaft. The cuticle can be thought of as a series of overlapping scales. How tightly these scales lie against the hair shaft determines your hair's porosity.

- Low porosity hair has tightly bound cuticles that lay flat, making it challenging for moisture to penetrate. This type of hair tends to accumulate products on the surface rather than absorb them.
- Medium porosity hair has a looser cuticle layer that allows for easier moisture absorption and retention, requiring less maintenance.
- High porosity hair has gaps and holes in the cuticle, which let moisture in easily but also allow it to escape just as quickly, leading to dryness and frizz.

Determining Your Hair Porosity:
You can determine your hair porosity with a simple at-home test. Take a few strands of clean hair and drop them into a glass of water. Watch to see if the hair floats (low porosity), sinks slowly (medium porosity), or sinks quickly (high porosity). This test will give you a general idea of your hair's porosity, which you can then use to inform your hair care routine.

Washing Frequency for Different Hair Porosity Levels:

Low Porosity Hair:
Those with low porosity hair often find that their hair takes a long time to get fully wet and dry. Since this hair type is prone to product buildup, it's essential not to overwash it, as this can lead to a dry scalp and even more buildup. People with low porosity hair may find that washing their hair once a week or even less frequently is sufficient. Use a clarifying shampoo occasionally to remove any buildup, and focus on lightweight, water-based products to avoid weighing hair down.

Medium Porosity Hair:
Medium porosity hair is the most manageable and typically looks and feels healthy without too much effort. Washing medium porosity hair can be done two to three times a week, depending on your personal preference and lifestyle. This hair type holds styles well and can maintain a good balance of moisture without too much buildup.

High Porosity Hair:
High porosity hair tends to absorb moisture quickly but loses it just as fast. To keep high porosity hair hydrated, it may seem counterintuitive, but it's often beneficial to wash it more frequently – around two to four times a week. This helps to remove any products that can cause dryness and allows for regular conditioning treatments. Use gentle, moisturising shampoos and deep conditioning treatments to help fill in the gaps in the cuticle and lock in moisture.


Knowing your hair is a game-changer in understanding the unique needs of your hair, particularly when it comes to washing frequency. By tailoring your hair care routine to your hair's porosity, you're taking a big step towards maintaining its health and vitality. Remember, the float test is a simple way to gauge your hair's porosity, but it's not an exact science. It's always a good idea to combine this test with an awareness of how your hair behaves over time in response to moisture and products. With this knowledge in hand, you can create a hair washing schedule that works in harmony with your hair's natural tendencies and your lifestyle, ensuring that your locks stay hydrated, strong, and looking their best.
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