An unhealthy scalp can feel dry, itchy, or excessively oil. But did you know that an unhealthy scalp can slow your hair growth and even cause hair loss? Hair growth can be impeded by an overly dry scalp or a scalp clogged with excess oil and dead skin. If you want healthier, thicker hair, it’s important to keep your scalp in the best condition possible. Follow these healthy scalp tips!