A “best by” date for tinctures is normally indicated on the label, and this date is typically one year from the packaging date. A well-preserved tincture can last several months.
This is because the ingredients are straightforward and stable, such as MCT or coconut oil, which can tolerate the majority of normal temperature changes without degrading. Unopened tinctures should be kept in a cold, dark cabinet for maximum shelf life, and once opened, they will keep best in the refrigerator.