Sulfur is the active ingredient in volcanic ash. Sulfur stimulates not only to resist bacteria,
it is actively working to destroy it.
Sulfur against
► Skin conditions like acne, dandruff, scaly skin.
Because of the cleansing and absorbing properties of volcanic clay, it is an excellent natural ingredient for de-stress, detoxification, fat burning,...

Volcanic Earth - Europe is een van de merken van Belcastro & Bellissima.
Maar wie zijn ze ?

Not sure if this is the complete list, of skin diseases.
But I found it pretty usefull

Go to the author website of A-Z of skin disease

When it comes to skin care brands, there is one favourite which is proven effective for our skin. Volcanic Earth Europe. They use natural ingredients; for example the volcanic ash in facial mask and facial scrubs, how authentic is that ! And more to read on their own website:
Volcanic Earth Europe