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. Sulfur is a naturally occurring element that has been used for thousands of years in skin care products. It is an anti-inflammatory, anti-bacterial, and anti-fungal agent. It also has a bleaching effect on the skin, which can help fade dark spots and acne scars.