An uplifting in-shower mask with lime and glycolic acid tightens pores and mattifies skin in only 60 seconds. This oil-free mask works with the steam of your shower to provide a deep cleanse that rebalances oil for a lasting mattifying effect NEUTROGENA Oil Balancing In-Shower Mask is an uplifting in-shower mask with lime and glycolic acid tightens pores and mattifies skin in only 60 seconds. This oil-free mask works with the steam of your shower to provide a deep cleanse that rebalances oil for a lasting mattifying effect.