How should an esthetician hold the electrode while performing desincrustation?

In the context of performing desincrustation, the esthetician should hold the electrode in the negative position. This is crucial because desincrustation is a process used to soften and emulsify sebum and other debris in the skin, making it easier to extract. When the negative electrode is used, it creates an alkaline reaction, which helps to break down the impurities and facilitate their removal from the pores.

Using the negative electrode is essential for the effectiveness of the desincrustation treatment. It allows for a more efficient breakdown of oils and debris, leading to clearer skin and better results for clients. The other electrode positions and grips, while relevant in different treatments, do not specifically aid in the desincrustation process the same way that the negative position does.