The pH scale measures the acidity or alkalinity of a substance on a scale from 0 to 14. A pH of 7 is considered neutral, while values below 7 indicate acidity and values above 7 indicate alkalinity.
Most hand sanitizers are formulated to have a slightly acidic pH level, as this helps to kill bacteria and viruses more effectively. However, some hand sanitizers may have a pH level closer to neutral, as this can help to reduce skin irritation.
It's important to note that the pH level of a hand sanitizer is just one factor that contributes to its effectiveness. Other factors, such as the type of alcohol used and the concentration of alcohol, also play a role in killing germs.
