Ngaphandle kokweqisa okuningi, i-Retinol, noma i-vitamin A, ingabizwa ngokuthi enye yezithako ezithandwa kakhulu eminyakeni yamuva - imikhiqizo emisha enale ngxenye ekubunjweni iyaqhubeka nokukhishwa nyanga zonke. Ngakho-ke kungani kuhle esikhumbeni nokuthi ungayisebenzisa kanjani kangcono ukugcina ubusha nobuhle?
I-Retinol yigama lesibili likavithamini A, elatholwa ngo-1913 ngesikhathi esisodwa amaqembu amabili azimele ososayensi. Akukhona nje ukuqondana ukuthi i-Retinol yathola uhlamvu A - bekungeyokuqala ukutholwa phakathi kwamanye amavithamini. Emzimbeni womuntu, ikhiqizwa nge-beta-carotene futhi ibandakanyeka ezinqubweni eziningi - iyadingeka esikhumbeni esinempilo, izinwele, amathambo nombono, ukuzivikela okuqinile, umgudu wokugaya onempilo kanye nesistimu yokuphefumula. Ngokuvamile, ukubaluleka kwayo kunzima ukukucabangela ngokweqile.
Ngakolunye uhlangothi, ukweqisa kukavithamini A kuyingozi futhi kuyingozi nakakhulu - abantu abaningi cishe bajwayelene nezindaba eziphathelene nabahloli bamazwe abangenwa ubuthi ngokudla isibindi sebhere elimhlophe. Isizathu siwukuqukethwe okuphezulu kukavithamini A kulesi sitho sezilwane zasenyakatho. Ngakho-ke, akufanele ugijimele ukuzinikeza amaphilisi e-Retinol - vele wengeze ekudleni kwakho ngemifino nezithelo eziphuzi, eziwolintshi nezibomvu, isibindi sezinhlanzi ezinamafutha, ibhotela, amaqanda kanye nemikhiqizo yobisi yonke.
Kodwa ukuhlanganisa i-Retinol ekunakekelweni kwesikhumba kuyafaneleka, futhi yingakho. Ukufaneleka okuyinhloko kwe-Retinol ebudlelwaneni bayo nesikhumba ukujwayelekile kwezinqubo zamaselula. Akubavumeli ukuba behlise ijubane, okwenzeka ngokungaguquki ngokuguga, kushukumisa umzimba weselula kanye nokukhishwa kwamaseli afile, ngakho-ke kufanelana ngokuphelele nokunakekelwa okulwa nokuguga kanye nokulwa nezinduna zobunzima obuhlukahlukene. Ilawula kanyekanye umsebenzi wezindlala ze-sebaceous, yenza isikhumba sinwebeka, siveze impumuzo nethoni yayo - iphupho, hhayi isithako.
Uma ungakaze usebenzise izimonyo ze-Retinol, qala uzisebenzise izikhathi ezimbalwa ngeviki ebusuku
Kuyaphawuleka ukuthi, ukukhuluma nge-Retinol ekubunjweni kwezimonyo, ochwepheshe kanye nabakhiqizi basho iqembu lonke lezinto - ama-retinoids, noma ama-Retinol derivatives. Iqiniso liwukuthi lokho okuthiwa uhlobo lweqiniso lwe-vitamin A (empeleni, i-Retinol) alizinzile kakhulu futhi liwa ngokushesha ngaphansi kwethonya le-oxygen nokukhanya kwelanga, ngakho-ke kunzima ukwenza ifomula ephumelelayo ngalesi sithako - umkhiqizo wezimonyo ulahlekelwa. ukusebenza kwayo ngokushesha okukhulu.
Lapha, amafomu azinzile noma ama-analogue okwenziwa ayasiza. Owokuqala uhlanganisa, ngokwesibonelo, i-Retinol acetate ne-Retinol palmitate, kanti lezi zamuva zihlanganisa i-adapelene, enye yezindlela ezidume kakhulu zokwelapha isikhumba esinenkinga.
Kukhona futhi impukane emafutheni kulo mgqomo woju - ukweqisa kwama-retinoids ekunakekelweni kungasongela ukucasuka kwesikhumba, ukoma kwaso kanye nokuqubuka. Ngakho-ke, kufanelekile ukuhlanganisa umkhiqizo nalesi sithako kancane kancane, ubheka ukusabela kwesikhumba. Uma ungakaze usebenzise izimonyo ze-Retinol, qala usebenzise izikhathi ezimbalwa ngesonto ebusuku - uma isikhumba singazizwa singakhululekile, khulisa inani lokusetshenziswa kwamasonto onke.
Kuyafaneleka futhi ukuqala ngokugxila okuphansi kanye namafomula ahlanganisa i-Retinol nezithako ezinhle ezipholile nezithambisayo, ezifana namafutha emifino noma i-squalane. Uma, noma kunjalo, ukwenza ubungane ne-Retinol kungasebenzi nganoma iyiphi indlela futhi isikhumba sihlale "sikhipha ukucasuka", kufanelekile ukuzama i-analogue yesitshalo yalesi sici - bakuchiol. Izimali ezihambisana nayo nazo ziyanda.
Elinye iphuzu elibalulekile - i-Retinol ingandisa ukuzwela kwesikhumba ekukhanyeni kwelanga. Kuvela ukuthi i-ejenti efanayo elwa ngokuphumelelayo nezindawo zeminyaka ingaba nomthelela ekubukeni kwabo. Ngakho-ke, ochwepheshe bayeluleka ukusebenzisa imikhiqizo ye-SPF ngokuhambisana nemikhiqizo ye-Retinol, ukuze izakhiwo zayo zilethe izinzuzo kuphela, okunzima ukuzicabangela ngokweqile.