A broad spectrum does not kill:

A broad-spectrum antimicrobial agent is designed to target and kill a variety of microorganisms, including both gram-positive and gram-negative bacteria, fungi, and some viruses. However, bacterial spores are highly resilient and can withstand extreme environmental conditions, making them much more challenging to eliminate.

Broad-spectrum agents typically do not penetrate the protective layers of bacterial spores effectively, which is why these spores can survive in various environments, including those where other types of microorganisms are eliminated. This resistance makes spores significantly different from other forms of bacteria and necessitates the use of specific sterilization methods, such as autoclaving, to ensure their destruction. Understanding the resilience of bacterial spores is essential for maintaining proper sanitation and infection control in cosmetology and other fields.