Before chewing gum and mouthwash existed, many people around the world used herbs to stop bad breath (halitosis). This is because herbs are known for their strong aromas and flavors; thus, people thought it was bound to stop halitosis and awful tastes in their mouth. According to scientific research, herbs also control oral bacteria, which in turn leads to healthier gums, teeth, and tissues. The people using the herbs most likely did not know this information back then.
Many mouthwashes that first came on the market used herbal remedies in their formulas. Some mouthwashes today are herbal remedies for bad breath, using ingredients like menthol (from a mint plant); eucalyptol ( from a eucalyptus tree); methyl salicylate (wintergreen); and thymol (thyme). The antiseptic properties of these herbs also aid in cleaning the mouth, which can prevent bad breath from returning.
Another herbal remedy for bad breath is chlorophyll (a molecule that is created when green plants absorb light to turn it into energy), because it can absorb bad odors rather effectively. This is why plants that have a high amount of chlorophyll, like parsley, vegetables, and algae, can be a good solution to bad breath. Cloves and peppermint are also popular and safe herbal remedies for halitosis.
Sage, dill, and cardamom can be used to get rid of bad breath, but it is best to do research since some plants can be toxic when used in certain ways, like being put directly into your mouth. It is best to consult with an expert on herbal remedies before mixing various plants to fight bad breath as well.
In an undiluted state, a smaller amount of herbs can go a longer way than the diluted ones used in mouthwash liquid formulas.