What value on the pH scale is considered neutral?

A value of 7 on the pH scale is considered neutral because it is the midpoint between the acidic (0 to 6.9) and alkaline (7.1 to 14) ranges. This neutral point indicates that the concentration of hydrogen ions (H⁺) is equal to the concentration of hydroxide ions (OH⁻) in a solution. A pH of 7 represents pure water at 25 degrees Celsius, where neither acidic nor basic properties prevail. Understanding this concept is crucial for cosmetologists, as many products used in beauty treatments need to maintain a pH level close to neutral to avoid skin irritation or damage.