What does the positive pole in galvanic electrolysis do?

In galvanic electrolysis, the positive pole plays a critical role in the hair removal process. It is involved in creating a chemical reaction in the hair follicle that leads to the destruction of the hair. When the positive pole is applied, it attracts negatively charged particles within the tissue, including ions and electrolytes, which facilitate the conversion of sodium chloride (salt) into sodium hydroxide (lye). This alkaline solution is what effectively destroys the cells that permit hair growth, leading to permanent hair removal.

The process emphasizes the importance of the chemical reaction induced by the positive pole, demonstrating how this application directly contributes to the permanence of hair removal through the destruction of the hair follicle. This makes it clear why this option is the most accurate choice regarding the function of the positive pole during galvanic electrolysis.