Porosity is the level at which your hair absorbs and holds moisture. Knowing your hair's porosity is one of the most important facets of your hair you should know. It's very helpful in helping you maintain your hair's health, even more important that knowing your hair type. Once you are aware of your hair porosity level, you can focus on growth and overall health. We follow up this quiz with great tips for your hair porosity and other ways to test for your porosity as this is a great baseline estimate based on your responses. So, let's get started!