Sulfur is a chemical element that is present in all living tissues. After calcium and phosphorus, it is the third most abundant mineral in the human body. Sulfur is also found in garlic, onions, and broccoli.
Sulfur is applied to the skin for dandruff and an itchy skin infection caused by mites (scabies). It is also applied to the skin for acne and skin redness (rosacea), and taken orally for many other conditions, but there is limited scientific evidence to support these uses.