Which of the following is not a method of hair removal recognized in cosmetology?

The correct answer is bleaching, as it is not considered a method of hair removal in cosmetology. Bleaching involves lightening the color of hair, effectively making it less visible rather than removing it. This process is commonly used on facial hair or body hair to alter its color, but it does not eliminate the hair itself.

In contrast, shaving, tweezing, and waxing are all recognized methods of hair removal. Shaving cuts the hair at the skin's surface, allowing for a quick and easy way to remove hair. Tweezing involves pulling hair out from the root, often used for shaping eyebrows or removing stray hairs. Waxing removes hair by applying a sticky substance to the skin and then pulling it off, taking the hair out from the follicle. Each of these methods results in the removal of hair, which is why they are included in the practices of cosmetology.