Managing Type 4b hair, especially with low density and high porosity, can often feel like a balancing act. From my personal experience, the key to healthy, manageable hair lies in understanding the unique needs of your hair type. High porosity hair tends to absorb products quickly but can also lose moisture just as fast, so using heavier leave-in conditioners and sealing oils is crucial. I found that using a milk-serum hybrid like RŌZ Hair milk serum works wonderfully to provide hydration without weighing the hair down. For added nourishment and shine, applying a lightweight oil or serum such as Hairitage by Mindy can help seal in moisture and protect strands. Styling is equally important when aiming for sleek and polished looks, like a bun. A super hold gel combined with a strong edge control can give you that neat finish while maintaining flexibility throughout the day. I’ve had great results with Pattern’s styling products for this purpose. Addressing low hair density requires products that support hair growth and thickness. Incorporating serums like Redken Acidic Grow Full and Living Proof’s density serum into your routine can help improve hair strength and fullness over time. Remember, consistency is key. Regularly using a combination of these products while protecting your hair from harsh environmental factors will improve its overall health and appearance. Experiment with layering these products as per your hair's response to find what works best for you.