There is so much talk around hair porosity but if you like myself weren't always aware of your hairs porosity, here are a few indicators to help below.
Low Porosity Hair
My hair has difficulty absorbing water/product and retaining moisture. My hair dries very slowly. I experience chronic dryness and am easily prone to breakage due to brittle hair and ends. Typically type 4 hair : 4A, 4B or 4C tight curls and coils.
Medium Porosity Hair
My hair absorbs water/product and seems to retain moisture pretty well.
My hair doesn't require a lot of maintenance. Hair types will vary.
High Porosity Hair
My hair has little to no difficulty absorbing water/product but does not retain moisture. My hair dries very fast. I experience breakage due to frizz, weak strands and tangling. Typically type 3 hair : 3A, 3B, or 3C loose waves and curls.
Keep in mind some curlfriends have combination hair types. The best way to determine your hair porosity is to do a strand test.
Simply fill a cup with room temperature water. Now take a few strands of hair from your comb or brush and place them in the cup. Now observe the results.
If your stands float to the top you have low porosity hair.
If your strands are in the middle, and then seem to VERY slowly sink to the bottom you have medium porosity hair.
If your strands sink to the bottom you have high porosity hair.