pH-Balanced Sensitive Hair Shampoos 1. Definition pH-balanced sensitive hair shampoos are specially formulated cleansers designed to maintain the natural acidic pH of the scalp (around 4.5–5.5) while gently cleansing hair and scalp.These shampoos are suitable for sensitive, reactive, or easily irritated scalps and help preserve the scalp barrier function while avoiding dryness, irritation, or chemical […]
