SCD ScentGuard is an all-natural, environmentally friendly odor reducer. The formula contains powerful microbes and their metabolites that work synergistically to inhibit odor. It is produced using SCD Probiotics Technology, which is made through a natural fermentation process and is not chemically synthesized or genetically engineered. Microbes in SCD ScentGuard work using a natural process to populate and consume odor causing compounds in almost any environment.