SULPHUR POWDER - This powder is more than 99.8% pure and can be used to treat acne and other skin problems.  Sulfur is present in all living tissues. It is the third most abundant mineral in the human body. Sulfur seems to have antibacterial effects against the bacteria that cause acne. It also might help promote the loosening and shedding of skin. This is believed to help treat skin conditions such as seborrheic dermatitis or acne.