What technique involves the use of a cotton thread to remove hair?

The technique that involves the use of a cotton thread to remove hair is known as threading. This method originated in some Middle Eastern and South Asian cultures and has gained popularity worldwide for its precision and effectiveness in shaping eyebrows and removing facial hair. In threading, a piece of thin cotton or polyester thread is twisted and rolled over areas of unwanted hair, which trap the hairs in the thread and pull them out from the follicle. This technique provides a clean and defined result and is favored by many for its ability to create sharp lines and precise shapes.

In contrast, the other methods listed have different processes and tools: sugaring involves a sticky paste made from sugar, water, and lemon juice used to remove hair; waxing applies a layer of heated waxing material followed by a cloth strip; and electrolysis uses an electric current to permanently destroy hair follicles. Each of these methods has its own applications, but threading specifically relies on the skillful manipulation of the thread to achieve hair removal.