Animated Health on Instagram: "Knowing your hair’s porosity can help you choose products that actually work. A simple test is placing a clean strand of hair into a glass of room-temperature water and waiting about 50 minutes. If it floats, your hair is likely low porosity, meaning it resists moisture. If it sinks slowly, you likely have medium porosity, which holds moisture well. If it sinks quickly, your hair may be high porosity, meaning it absorbs moisture fast but can lose it easily. Underst