: These use natural bacteria and enzymes to digest organic material like hair, grease, and soap scum.
Here are the exceptions:
Enzymatic cleaners represent a paradigm shift. Instead of using extreme pH to melt clogs, they use biological catalysts—proteases (to break down hair and skin cells) and lipases (to break down fats and oils). These enzymes are produced via microbial fermentation, typically in stainless steel vats using bacteria or fungi, a process that involves no animal testing or animal-derived ingredients. When poured down a drain, the enzymes accelerate the natural decomposition of the clog, turning it into water-soluble amino acids and glycerol. cruelty free drain cleaner