Cool Hair In Water Test References. Web if you’re looking for an even easier way to tell, simply spritz some water onto your hair when it’s dry and take note of how fast your hair absorbs it. If it soaks the water up right away, it’s indicative of having highly porous hair.

Web “a good way to test porosity is to drop a few strands of hair into a bowl of water and let them sit for a few minutes. Web the first is the glass of water test. Absorption test it’s also one of the most popular ways to test hair porosity with water.