Louisiana Barber Practice Exam 2026 - Free Barber Practice Questions and Study Guide

The common pH range for hair and scalp falls between 4.5 and 5.5, making this range essential for maintaining healthy hair and skin. This slightly acidic pH level is crucial because it helps to protect the hair and scalp from adverse environmental factors while also ensuring that the natural oils and moisture are retained.

At this pH level, the hair cuticle remains smooth and closed, which helps prevent damage and promotes shine. Additionally, maintaining this pH balance aids in preserving the scalp's natural barrier, reducing the risk of irritation and supporting overall scalp health. Products formulated within this pH range are more compatible with the scalp and hair structure, ensuring that they enhance rather than disrupt the natural balance, making this choice vital for maintaining optimal hair and scalp condition.