Want longer, thicker, shinier, more amazing hair? (Um, of course.) That’s why you’ve ditched your big bathroom towel, swapped out that cotton pillowcase, and stopped messing with your strands when wet. But how much effort have you focused on improving the condition of your scalp? While it’s not surprising that great hair stems from a healthy scalp, the scalp is still overlooked in most beauty routines. We talked to dermatologist Dr. Marnie Nussbaum, who assured us that caring for your scalp can make a huge difference. Keep reading to find out what you can do to turn your scalp into the healthy hair-growing machine it’s meant to be!