If you have been following Natural Hair trends, then it may seem like Natural Hair has seriously become a science.  There is always something new that one must learn in order to achieve the perfect curl.  We hear terms like protein, moisture retention, sulfates, silicone, and of course, porosity.  We hear so many hair/beauty gurus talk about the importance of hair porosity, so let's dive into all things relating to Hair Porosity. What is Hair Porosity? "Porosity is the quality of being porous, or full of tiny holes. Liquids go right through things that have porosity." - Vocabulary.com If you aren't achieving the ideal twist out or other curly style, then hair porosity may be the culprit. With that being said, hair porosity basically deals with your hair's ability to absorb liquid (moisture) and also retain it. There are three main types of porosity: Low, Normal, and High Porosity. How do you know your porosity type? There is a simple hair strand te...