PurO3 Ozonated Olive/Castor Oil SuppositoriesPurO3 ozonated olive and castor oil suppositories are made from organic, extra virgin olive oil, organic castor oil, and high purity ozone. Product Details Each PurO3 ozone suppository is 2. 6 mL. They include fully ozonated oils created using a cold plasma ozone generator with medical oxygen. The benefit of using cold plasma (low frequency) ozone when producing ozonated oil is that no heat enters the oil. Traditional ozone generators (high frequency)