It is made of Milk thistle tincture is produced from the seeds of the Silybum marianum plant.   Tinctures are made by steeping herbs in an alcoholic solution, usually pure alcohol, for a period of 4-6 weeks. The active ingredients of the herbs are dissolved and the tincture is created, which retains all the active ingredients of the herb. They are much more potent than infusions and decoctions. In addition, they are superior to dietary supplements in pill form as they contain no chemical substances or preservatives and are much more effectively absorbed by the body.   Formulated WITHOUT Preservatives, Chemical additives, Artificial Dyes, Fragrance, Genetically Modified Organisms (GMO), Mineral oil