Helen Reavey is a celebrity trichologist and hairstylist and the founder of Act+Acre. She once told me that the “scalp needs consistent care since it’s an extension of your face.” I know that’s true because I struggle with dry, dehydrated skin, and I also struggle with a dry, dehydrated scalp. If I use the wrong products, I start to feel an uncomfortable, tight, and itchy sensation. Scalp treatments certainly help, but my haircare routine starts with shampoo, and swapping out old, moisture-stripping formulas for gentle, hydrating ones made the most difference.

I’m not just imagining it, either. According to Jennifer Korab, a celebrity hairstylist and the founder of Renaissance Hair Salon & Spa, “your shampoo really makes a difference in your hair health. Consistent use can improve moisture balance, reduce dryness and frizz, and soothe the scalp.” Celebrity hairstylist Jessica Elbaum agrees, saying, “[Hydrating shampoos] make a huge difference in the strand and the scalp.”