What method is described by the term 'threading'?

Threading is a precise hair removal technique that involves using a thin cotton thread to remove unwanted hair from areas such as the eyebrows, upper lip, and other facial regions. This method is particularly valued for its accuracy, as it allows for the removal of individual hairs or rows of hair without the use of chemicals or heat, making it a popular choice for those seeking a natural and hypoallergenic alternative for hair removal.

The technique works by twisting the thread, which traps the hair and pulls it out from the follicle. This can lead to a more defined and clean look, particularly for eyebrow shaping. Because threading does not involve any products or substances that can irritate the skin, it is often recommended for individuals with sensitive skin.

While other methods mentioned in the options, such as waxing and chemical depilatories, involve additional substances and can vary in their precision or affect the skin differently, threading stands out for its effectiveness and minimal irritation risk. This makes it the correct answer in this context.