PSI Texas State Board Nail Tech Practice Exam 2025 - Free Nail Technician Practice Questions and Study Guide

The abbreviation "pH" stands for "Potential of Hydrogen." This term is used to quantify the acidity or alkalinity of a solution and indicates the concentration of hydrogen ions present. The pH scale typically ranges from 0 to 14, where a pH of 7 is neutral, values below 7 indicate acidity, and values above 7 indicate alkalinity. Understanding pH is crucial in the nail care and cosmetology field as it affects the performance and effectiveness of products used in treatments and services. For example, nail technicians must be aware of the pH of products like nail polish removers and skin care solutions to ensure they are suitable for use on clients' nails and skin.

The other options do not accurately reflect the definition or application of pH. Power of Hydration, Proportion of Heat, and Profile of Hair do not relate to the scientific measurement of acidity or alkalinity, thus reinforcing why "Potential of Hydrogen" is the correct interpretation of the abbreviation.