What does the term "porosity" refer to in hair?

Porosity in hair refers specifically to the hair's ability to absorb moisture. This characteristic is crucial in determining how well hair retains moisture and how effectively it can take in conditioning products or treatments.

The level of porosity is influenced by the condition of the outer layer of the hair, known as the cuticle. When the cuticle layers are tightly packed, the hair is considered to be low porosity, making it less prone to absorbing moisture. Conversely, if the cuticle is damaged or raised, the hair is likely to be high porosity, which can result in faster absorption of moisture and also lead to quicker loss of hydration.

Understanding porosity is essential for choosing the right hair care products and methods, enabling you to tailor treatments to meet specific needs based on how well your hair absorbs moisture. This helps in maintaining the health and appearance of the hair.