Umsebenzi
1. Ngezicubu ze-epithelial: i-retinol noma ivithamini A iyivithamini encibilika ngamafutha, edlala indima ebalulekile.
emsebenzini wezicubu ze-epithelial yomuntu, futhi inemiphumela ebaluleke kakhulu kuzicubu ze-epithelial, i-cornea,
i-conjunctiva kanye ne-mucosa yamakhala;
2. Ukwelashwa kokungaboni ebusuku: i-retinol nayo idlala indima ebaluleke kakhulu embonweni. Uma i-vitamin A ingekho,
ukungaboni ebusuku kungase kwenzeke;
3. Ekukhuleni kwamazinyo: I-Vitamin A nayo idlala indima ethile ekukhuleni nasekuthuthukisweni kwamazinyo abantu.
4. Ubuhle nokunakekelwa kwesikhumba: kungakhuthaza ukukhiqizwa kwe-collagen, kufiphale amabala nezimpawu zezinduna, futhi
ukunciphisa imigqa eyomile nenhle yesikhumba;