Avobenzone,ekwaziwa ngokuba yiParsol 1789 okanye i-butyl methoxydibenzoylmethane, yikhompawundi yemichiza edla ngokusetyenziswa njengesithako kwizikhuseli zelanga kunye nezinye iimveliso zokhathalelo lomntu. Yeyona arhente isebenzayo yokufunxa i-UV enceda ukukhusela ulusu kwimitha ye-UVA eyingozi, yiyo loo nto isoloko ifumaneka kwizikhuseli zelanga ezibanzi.
Inombolo ye-CAS ye-Avobenzone yi-70356-09-1. Ngumgubo otyheli, onganyibilikiyo emanzini kodwa unyibilika kwizinto ezininzi ezinyibilikisayo eziphilayo, kuquka ioyile kunye notywala. I-Avobenzone iyisithako se-phototable, oku kuthetha ukuba ayiphuli xa ibonakaliswe ekukhanyeni kwelanga, okwenza kube yinto ekhethiweyo yokukhetha i-sunscreens.
Avobenzoneifunxa imitha ye-UVA ngokuyiguqulela ekubeni ibe namandla angeyongozi kangako phambi kokuba ingene eluswini. Ikhompawundi inencopho yokufunxa kakhulu kwi-357 nm kwaye isebenza kakhulu ekukhuseleni ngokuchasene nemitha ye-UVA. Imitha ye-UVA iyaziwa ngokubangela ukuguga kwangaphambili, imibimbi, kunye nolunye umonakalo wolusu, ngoko i-avobenzone ngumdlali obalulekileyo ekukhuseleni ulusu kwimiphumo yelanga.
Ukongeza kwi-sunscreens,avobenzoneikwasetyenziswa kwezinye iimveliso zokhathalelo lomntu, ezifana nezinto zokuthambisa, iziqholo zomlomo, kunye neemveliso zokhathalelo lweenwele. Ukukhuselwa kwayo okubanzi kwimitha ye-UVA kuyenza ibe sisithako esiluncedo kwiimveliso ezininzi ezahlukeneyo ezifuna ukukhusela ulusu kunye neenwele emonakalweni.
Nangona kukho iinkxalabo malunga nokhuseleko lwe-avobenzone, uphando luye lwabonisa ukuba lukhuselekile kwaye lusebenza kakuhle xa lusetyenziswa njengoko kuchazwe kwi-sunscreens kunye nezinye iimveliso zokunyamekela. Ifakwe kuluhlu lwe-FDA lwezithako ezisebenzayo ezivunyiweyo zokusetyenziswa kwi-sunscreens, kwaye isetyenziswa ngokubanzi kwiintlobo ezininzi zeemveliso.
Kuko konke,avobenzonesisithako esixabisekileyo kwiimveliso ezininzi zokhathalelo lomntu, ngakumbi izikhuseli zelanga, ngenxa yokukwazi ukukhusela kwimitha ye-UVA eyingozi. Ifotosability yayo kunye nobuchule bokusetyenziswa kwiifomula ezahlukeneyo ezahlukeneyo zenza ukuba ibe sisithako esisebenzayo esilapha ukuhlala. Ngoko ke, xa ngokulandelayo ukhangela i-sunscreen, khangela i-avobenzone kuluhlu lwezithako ezisebenzayo ukuqinisekisa ukuba ufumana ukhuseleko olungcono kakhulu.
Ixesha lokuposa: Mar-14-2024