What does pH stand for in the context of chemistry?

In the context of chemistry, pH stands for "potential hydrogen." The pH scale measures the acidity or alkalinity of a solution, which is determined by the concentration of hydrogen ions (H⁺) present. A lower pH indicates a higher concentration of hydrogen ions, making the solution more acidic, while a higher pH indicates a lower concentration of hydrogen ions, making the solution more alkaline or basic. Hence, the term "potential hydrogen" accurately reflects the relationship between hydrogen ions and the acidity or basicity of a solution. Understanding pH is crucial for estheticians, as many skincare products are designed to work optimally at specific pH levels, influencing the efficacy and compatibility with the skin.