Red Seal Hairstylist Practice Exam

In the context of hair care products, pH stands for "Potential Hydrogen." This term refers to the concentration of hydrogen ions in a solution, which ultimately measures its acidity or alkalinity. The pH scale ranges from 0 to 14, where a value of 7 is considered neutral. Solutions with a pH lower than 7 are acidic, while those higher than 7 are alkaline.

Understanding pH is crucial in hair care because the hair and scalp have a natural pH level that usually falls between 4.5 and 5.5. Products formulated within this range help maintain hair health and moisture balance, preventing damage such as dryness or breakage. High-pH products can open the hair cuticle, while low-pH products can help close it, influencing the overall condition and appearance of the hair. Therefore, recognizing pH as Potential Hydrogen underscores its importance in formulating effective hair care products and understanding their impact on hair health.