Milady Esthetics State Board Practice Test 2026 – Comprehensive All-in-One Guide to Exam Success

pH stands for "potential hydrogen," which refers to the concentration of hydrogen ions in a solution. It is a measure of how acidic or alkaline a substance is, with lower pH values indicating higher acidity due to increased hydrogen ions, while higher pH values indicate lower acidity and more alkalinity. The concept of pH is fundamental in chemistry, particularly in fields such as biology and environmental science, as it affects chemical reactions, biological processes, and the behavior of substances in different environments. Understanding pH is crucial for estheticians, as it influences the formulation and efficacy of skincare products and treatments.