Kyolic Aged Garlic Extract, is sourced from organically grown garlic; and then aged for up to 20 months. The unique Kyolic aging process converts the oil-soluble, harsh-smelling, sulfur-based compounds in raw garlic into a range of water-soluble, odourless ones. These compounds are responsible for the unique properties of Kyolic, and are also the reason that the extract is gentle on sensitive stomachs & leaves no garlic breath.