Order ZO Offects Sulfur Masque Acne Treatment from Ace Medical Wholesale. ZO Offects Sulfur Masque Acne is a natural, clay-based mask that is used to treat and prevent acne and spot eruptions. As the name suggests, this mask contains 10% sulfur as the active ingredient to treat and prevent acne. Not only that, sulfur calms down skin irritations. This mask’s kaolin and bentonite also works to keep pores clear by loosening and shedding dead and keratinized dermal cells and other debris. Glycerin, a potent humectant, has also been added to replenish moisture to skin so that its protective barrier layer can be restored. To use this mask, patients are advised to clean their affected area(s) thoroughly prior to using this product. They can then apply a thin layer of this mask on the affected area(s) for about 10 to 15 minutes before rinsing it off. For best results, patients should use this treatment mask twice weekly. In addition to treating the face, this mask can be used to treat acne eruptions on the neck, chest, and back. This clay-based mask is manufactured by ZO Skin Health Incorporation and is packaged in an 85g squeeze tube.