So, does hard water cause oily hair? Not directly, but it creates the perfect conditions for looking like you haven’t showered in three days. It’s the accomplice, not the mastermind. The real villain is the calcium-magnesium duo that refuses to leave your strands alone. But now you’re armed. You know your enemy, you have a game plan, and you can finally tell your friend Sarah to stop blaming her scalp.
Go forth, wash your hair, and remember: if it feels greasy, it might be a lie. Your hair is probably clean—it’s just wearing a mineral jacket. You got this.