Izinto ezilaminethiweyo zibhekiselele kwizinto zokupakisha ezenziwe ngokudibanisa iileya ezimbini okanye ngaphezulu zefilimu yeplastiki kunye nezinye izinto ngokusebenzisa umaleko wokudibanisa.Iingxowa zokupakisha ze-ayisikrimu ezilayitiweyo azinamanzi kuphela, ukumelana neoksijini, kunye neempawu ezixhathisayo ze-UV, kodwa zineziphumo ezilungileyo kugcino kunye nokugcinwa kwe-ayisikrimu.Ngelo xesha, baneempawu ezintle ezifana nokuchasana kweempembelelo, ukuxhathisa ukukrazula, kunye nokuxhatshazwa kokugqoka, okunokukhusela i-ayisikrimu ekufikeleleni kubathengi beqinile kwaye bangonakaliswa.