Our Sananga is sourced directly from the Matses Tribe. It is a traditional ceremonial preparation of Tabernaemontana undulata root bark, applied as a drop to the eye before ceremony or practice. It stings sharply for thirty seconds to a couple of minutes - that is part of the experience, and people who use it expect it. For adults only. Not for use with contact lenses in, during pregnancy or breastfeeding, or if you have an eye injury, an eye infection or any diagnosed eye condition. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease or condition, including any condition of the eyes.