California Natural Wild Oregana Oil. Description: Kills Bacteria and Yeast. 100% Oregano Oil. 70% Carvacrol. Dietary supplement. Anti-Fungal. Nature's Antiseptic Not the plant we use on pizza. Bacteria (including candida), parasites and fungi all fall prey to this natural antiseptic. California Natural wild oregano oil contains 60% to 75% carvacol, a phenol that dominates the oil, which is the main active ingredient, as well as, over 50 compounds that possess antimicrobial actions. Disclaimer: These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.