What is the process called that kills all bacteria, including helpful kinds?

The process referred to as sterilization is specifically designed to eliminate all forms of microbial life, including not only harmful bacteria but also beneficial types. This is achieved through various methods such as heat, chemicals, or radiation, which ensure that surfaces or instruments are completely free of any living microorganisms.

Understanding sterilization is critical in the field of esthetics, as it ensures that all tools and environments used during skin treatments are free from any pathogens that could potentially harm clients or disrupt the healing process. It is particularly important when working in a clinical or spa environment where the risk of infection must be minimized.

The other options do not encompass the complete elimination of all bacteria: epilation pertains to hair removal methods, sanitation focuses on reducing the number of microorganisms, and a clay mask is a cosmetic product used in skin care, none of which relates to the total eradication of bacteria as sterilization does.