Hydroxypropyl methylcellulose (HPMC) o se mea polymer lautele faʻaaogaina i mea faufale, aemaise lava i faʻamau faʻapipiʻi. O le HPMC o se ether cellulose e le ionic e faia e le cellulose faʻalenatura faʻasolosolo, faʻatasi ai ma le mafiafia lelei, faʻamauina o le vai, faʻapipiʻi, faʻapipiʻi ata, faʻamalolo ma le lubrication ...
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