Neutrogena Oil Balancing In-Shower Mask . This refreshing in-shower mask with lime and glycolic acid tightens pores and mattifies skin in just 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. Developed with dermatologists, with glycolic acid and lemon, it deeply cleanses and unclogs pores for a mattifying effect, For oily skin