How does the galvanic modality achieve permanent hair removal?

The galvanic modality achieves permanent hair removal through chemical decomposition. This process involves the application of direct current to the hair follicle, which subsequently creates a chemical reaction with the electrolyte in the tissue. Specifically, the direct current causes the production of sodium hydroxide (lye), which damages the hair follicle and prevents it from producing new hair.

Chemical decomposition is effective because it targets the structural integrity of the hair follicle at a cellular level, leading to permanent hair removal. The formation of lye is essential, as it disrupts the natural biological processes within the hair follicle, thus ensuring that it does not regenerate.

Other methods such as thermal destruction rely on heat to damage hair follicles, while mechanical extraction involves physically pulling out the hair. Radiofrequency damage uses radio waves to affect the hair follicle but does not utilize the chemical processes that galvanic currents generate. Thus, the unique mechanism of chemical decomposition in galvanic electrolysis establishes its effectiveness in achieving permanent hair removal.