Externally as an overlay for blemished, oily skin, to protect against inflammation, internally for hyperacidic stomach, diarrhea, hypercholesterolemia.
There are no well-founded scientific studies on its effects, but there are field reports (https://www.medical-tribune.de/fileadmin/noindex/fortbildung/Livestream-Partner/luvos-heilerde/CASEREPORT_01_Luvos-Heilerde_in_der_Gastroenterologie.pdf)