Gardenia essential oil when diluted with water into a spray bottle can be used as an antibacterial. It can protect you from harmful bacteria such as E. coli and/or salmonella. It’s also known to help prevent cancer and other illness that form due to toxins inside the body. Gardenia is also known as an all natural anti seizure preventative. The oh so popular sweet, relaxing, and captivating smell of gardenia is often used in aromatherapy adding this oil to your diffuser or just simply inhaling it can bring anyone to their happy place.