Umsebenzi
1. Kwizicubu ze-epithelial: i-retinol okanye i-vitamin A yivithamini e-fat-soluble, edlala indima ebalulekileyo.
kumsebenzi wezicubu ze-epithelial yomntu, kwaye ineempembelelo ezibaluleke kakhulu kwizicubu ze-epithelial, i-cornea,
i-conjunctiva, kunye ne-mucosa yeempumlo;
2. Unyango lokungaboni ebusuku: i-retinol nayo idlala indima ebaluleke kakhulu kumbono. Ukuba ivithamin A ayinayo,
ubumfama bobusuku bunokwenzeka;
3. Ukukhula kwamazinyo: Ivithamin A ikwadlala indima ethile ekukhuleni nasekuphuhliseni amazinyo abantu.
4. Ubuhle kunye nokhathalelo lwesikhumba: inokukhuthaza ukuveliswa kwe-collagen, ukucima amabala kunye namanqaku amaqhakuva, kwaye
ukunciphisa imigca eyomileyo necolekileyo yesikhumba;