Hydroxypropyl Methylcellulose (HPMC) ke polymer e feto-fetohang, e seng chefo, le e ka bolang e sebelisoang haholo lihlahisoa tsa lik'hemik'hale tsa letsatsi le letsatsi. E tsebahala ka thepa ea eona e ntle ea ho boloka metsi, ho teteana, ho emulsifying le ho tsitsisa, e leng se etsang hore e lokele tlhokomelo ea botho, mekhoa ea lapeng le ea botle.