The galvanic modality achieves permanent hair removal through what process?

The galvanic modality achieves permanent hair removal through chemical decomposition. This process involves the application of a direct electrical current to the hair follicle via a fine probe inserted into the follicle. The current interacts with the saline solution present in the follicle, resulting in the production of sodium hydroxide. This chemical reaction effectively destroys the cells responsible for hair growth, leading to permanent hair removal.

In the context of hair removal, it’s essential to understand that chemical decomposition specifically targets the follicle at a cellular level, which is different from methods such as thermal conduction or mechanical extraction. Thermal conduction, for instance, relies on heat to damage the hair follicle, while mechanical extraction would involve physically pulling the hair out, which doesn't achieve permanent results. Therefore, the galvanic method's reliance on a chemical reaction to destroy hair growth cells underscores the effectiveness of this approach in achieving permanent hair removal.