Which service is generally not regulated by the state of Minnesota?

In Minnesota, ear piercing is generally not regulated by the state as it falls outside the traditional scope of cosmetology services. While many practices in the cosmetology field, such as hair coloring, airbrushing makeup, and manicuring, require licensing and adhere to specific health and safety regulations, ear piercing is often considered a separate procedure that can be performed in various settings, including retail establishments and by individuals without certification in the cosmetology field.

The rationale behind this distinction is that ear piercing does not involve the same skill set or tools commonly associated with cosmetology services, which focus more on the beauty and aesthetics of hair, nails, and skincare. Consequently, the regulations that apply to cosmetology professionals do not extend to ear piercing, making it the correct choice in response to the question.