What effect can over-exfoliation have on the scalp?

Over-exfoliation of the scalp can lead to an increase in oil production. This occurs because the scalp, much like the skin on the rest of the body, has sebaceous glands that produce oil to keep the skin moisturized and protected. When the scalp is over-exfoliated, it can become stripped of its natural oils. In response, the sebaceous glands may overcompensate by producing more oil, attempting to restore the lost moisture. This excess oil can lead to various scalp issues, such as greasiness and potentially contributing to conditions like dandruff or seborrheic dermatitis.

While promoting hair growth, enhancing scalp hydration, and improving scalp circulation are beneficial effects associated with proper scalp care and exfoliation, they do not directly result from over-exfoliation. Instead, moderating the exfoliation process is key to achieving a healthy balance and preventing adverse effects such as increased oil production.