Why is it important for hairdressers to know the pH of hair products?

Knowing the pH of hair products is crucial for hairdressers because it directly impacts the hair's health and overall condition. Hair has a natural pH level that typically ranges from 4.5 to 5.5. When hair products are formulated with a pH that is too high or too low, they can alter the hair's cuticle, leading to damage such as dryness, frizz, or breakage.

Selecting products that maintain healthy hair means choosing those with a pH level that closely aligns with the hair's natural state. This ensures that the products can effectively cleanse or condition the hair without causing harm. A balanced pH also helps preserve the integrity of chemical processes, such as coloring or perming, which can be negatively affected by pH imbalances. Therefore, understanding pH allows hairdressers to make informed choices about the products they use, ensuring they promote both the beauty and the health of their clients' hair.