What is low porosity hair?
Low porosity hair has many cuticles that are close together. If you have low porosity hair, you’ll find that water and products have a tough time entering the hair shaft because your cuticles are so tightly bound.
Here are the characteristics of low porosity hair:
Hair stays wet for a long time. While humidity and climate are a factor, low porosity hair tends to hang on to moisture and stay wet for much longer than higher porosity types and this can be annoying if you’re trying to set a style without using heat.
Hair may be dry. If you haven’t found a way to get moisture into your low porosity hair, it may be brittle and dry. Also, low porosity hair tends to attract product buildup, compounding the stiffness and dryness issues.
Product tends to sit on hair. Do your products do what they say on the label or do they sit like a coating on your hair? If you have low porosity hair, you’ll have trouble getting moisture and products to penetrate the hair shaft and you may even have product buildup because the cuticles are shut so tight.
Lack of curl definition. Because product and moisture do not penetrate the hair shaft well, it can be difficult to get a defined curl pattern.