Confused about hair porosity? Well it's just how able your hair is to absorb moisture, which is affected by the cuticle structure. A raised cuticle means your hair easily absorbs moisture and is high porosity. A tight cuticle means your hair is relucant to absorb moisture and is low porosity. If you're somewhere in the middle you are normal porosity.
Most "tests" of porosity just deal with how your hair floats in water, but they can be inaccurate. This quiz focuses on how your hair behaves so it can get a more complete picture of your porosity.