Which tool is used to measure moisture content in hair?

The appropriate tool for measuring the moisture content in hair is a hygrometer. This instrument is specifically designed to determine the humidity levels in the environment, which directly relates to the moisture present in the hair. Hair absorbs moisture from the air, and understanding this moisture content is essential for professionals in the hair care industry, as it can affect styling products, treatments, and overall hair health.

Hygrometers typically measure the relative humidity, allowing stylists to assess how much moisture hair can take on at a given time, which is crucial for making informed decisions regarding hair care procedures. In contrast, a thermometer measures temperature, a moisture meter is more focused on the moisture levels in other materials rather than specifically hair, and a pH meter tests the acidity or alkalinity of substances, none of which directly measure moisture content in hair.