In skin care, what does "pH" stand for?

The correct answer is "Potential hydrogen." pH is a scale that measures the acidity or alkalinity of a solution based on the concentration of hydrogen ions present. In the context of skin care, understanding pH is crucial as it influences the skin's barrier function, hydration levels, and overall health.

When the pH is balanced (typically around 5.5 for healthy skin), it helps maintain the skin’s natural moisture and protects against various skin conditions. A discrepancy in pH levels can lead to issues such as irritation, dryness, and increased susceptibility to infections. The term "potential hydrogen" relates specifically to the measurement of hydrogen ion concentration in a solution, which is fundamental to the concept of pH.

Understanding this term is important for estheticians and skin care professionals, as products can affect the skin's pH and, thereby, its health and appearance.