PVA (Polyvinyl Alcohol \u2013 Poli Vinil Alkol) kozmetikte su bazl\u0131 bir polimer olarak sa\u00e7 \u00fcr\u00fcnleri, maskeler ve baz\u0131 kremlerde film olu\u015fturucu, sabitleyici ve k\u0131vam artt\u0131r\u0131c\u0131 ama\u00e7larla kullan\u0131l\u0131r. \u00d6zellikle sheet mask (yaprak maske) form\u00fclasyonlar\u0131nda kuruduktan sonra cilt \u00fczerinde esnek bir tabaka olu\u015fturarak \u00fcr\u00fcn\u00fcn tutunmas\u0131n\u0131 ve etkinli\u011fini art\u0131r\u0131r. \u00dcr\u00fcn\u00fcn k\u0131vam\u0131n\u0131 iyile\u015ftirir, aktif bile\u015fenlerin stabilitesine katk\u0131 sa\u011flar ve form\u00fclasyonun homojenli\u011fini destekler. Sa\u00e7 veya cilt y\u00fczeyinde ince ve esnek bir film olu\u015fturarak nem kayb\u0131n\u0131 azalt\u0131r ve cilt ile sa\u00e7ta nemin korunmas\u0131na yard\u0131mc\u0131 olur. Kullan\u0131m oran\u0131 genellikle \u00fcr\u00fcn tipine ve kullan\u0131m amac\u0131na ba\u011fl\u0131 olarak %1\u2013%10 aras\u0131ndad\u0131r, sheet mask uygulamalar\u0131nda %3\u20136 oranlar\u0131 yayg\u0131n olarak tercih edilir. Form\u00fclasyona eklenirken suda iyi \u015fekilde \u00e7\u00f6z\u00fcnd\u00fcr\u00fclmesi gerekir, yeterli kar\u0131\u015ft\u0131rma yap\u0131lmad\u0131\u011f\u0131nda topaklanma olu\u015fabilir ve bu nedenle genellikle di\u011fer bile\u015fenler eklenmeden \u00f6nce su faz\u0131na ilave edilir. Su bazl\u0131 ve em\u00fclsiyon form\u00fclasyonlarla uyumludur, topikal kullan\u0131m i\u00e7in g\u00fcvenlidir ve gerekirse di\u011fer polimerler veya sa\u00e7 sabitleyicilerle birlikte kullan\u0131labilir.<\/p>\n","protected":false},"excerpt":{"rendered":"
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