Ivithamini C(VC) iyisithako esivamile esimhlophe ezimonyoni, kodwa kunamahemuhemu okuthi ukusebenzisa izimonyo ezine-VC phakathi nosuku ngeke nje kuhluleke ukwenza mhlophe isikhumba, kodwa futhi kuzofiphaza isikhumba; abanye abantu bakhathazekile ngokuthi ukusebenzisa imikhiqizo yokunakekelwa kwesikhumba equkethe i-VC ne-nicotinamide ngesikhathi esifanayo kuzodala ukungezwani komzimba nezinto ezithile. Ukusetshenziswa isikhathi eside kwezimonyo ezine-VC kuzokwenza isikhumba sibe mncane. Eqinisweni, konke lokhu ukungaqondi kahle mayelana nezimonyo eziqukethe i-VC.
Inganekwane 1: Ukuyisebenzisa emini kuzokwenza isikhumba sakho sibe mnyama
I-VC, eyaziwa nangokuthi i-L-ascorbic acid, iyi-antioxidant yemvelo engasetshenziswa ukwelapha nokuvimbela ukushiswa yilanga kwesikhumba. Kwezimonyo, i-VC inganciphisa inqubo yokwenziwa kwe-melanin njenge-dopaquinone ngokusebenzisana nama-ion ethusi endaweni esebenzayo ye-tyrosinase, ngaleyo ndlela iphazamise ukukhiqizwa kwe-melanin futhi izuze umphumela wokuba mhlophe nokususa ama-freckles.
Ukwakheka kwe-melanin kuhlobene nokusabela kwe-oxidation. Njenge-antioxidant evamile,VCingavimbela ukusabela kwe-oxidation, ikhiqize umphumela othize wokuba mhlophe, ithuthukise ukukhanda isikhumba kanye namakhono okuvuselela, ibambezele ukuguga, futhi inciphise ukulimala kwe-ultraviolet esikhumbeni. I-VC ayizinzile futhi i-oxidized kalula emoyeni futhi ilahlekelwa umsebenzi wayo we-antioxidant. Imisebe ye-Ultraviolet izosheshisa inqubo ye-oxidation. Ngakho-ke, kunconywa ukusebenzisaIzimonyo eziqukethe i-VCebusuku noma kude nokukhanya. Nakuba ukusetshenziswa kwezimonyo ezine-VC phakathi nosuku kungase kungafinyeleli imiphumela emihle, ngeke kubangele ukuba isikhumba sibe mnyama. Uma usebenzisa izinto zokunakekela isikhumba ezine-VC phakathi nosuku, kufanele uzivikele elangeni, njengokugqoka izingubo ezinemikhono emide, isigqoko kanye ne-parasol. Imithombo yokukhanya yokwenziwa efana nezibani ze-incandescent, izibani ze-fluorescent, nezibani ze-LED, ngokungafani nemisebe ye-ultraviolet, ayithinti i-VC, ngakho-ke asikho isidingo sokukhathazeka ngokukhanya okukhishwa izikrini zefoni ephathekayo ezithinta ukusebenza kwezimonyo ezine-VC.
Inganekwane yesi-2: Ukusetshenziswa isikhathi eside kuzokwenza isikhumba sibe mncane
Esivame ukubhekisela kukho“ukuncipha kwesikhumba”empeleni kuwukuncipha kwe-stratum corneum. Isizathu esibalulekile sokuncipha kwe-stratum corneum ukuthi amaseli kungqimba lwe-basal alimele futhi awakwazi ukuhlukana futhi akhiqize ngokujwayelekile, futhi umjikelezo wokuqala we-metabolic uyabhujiswa.
Nakuba i-VC ine-acidic, okuqukethwe kwe-VC ezimonyoni akwanele ukubangela ukulimala esikhumbeni. I-VC ngeke yenze i-stratum corneum ibe mncane, kodwa abantu abane-stratum corneum ezacile ngokuvamile banesikhumba esizwela kakhulu. Ngakho-ke, uma usebenzisa imikhiqizo emhlophe equkethe i-VC, kufanele uqale uyizame ezindaweni ezifana nangemuva kwezindlebe ukuze uhlole ukuthi kukhona yini ukungezwani komzimba.
Izimonyokufanele isetshenziswe ngokulinganisela. Uma uzisebenzisa ngokweqile ekuphishekeleni ukwenza zibe mhlophe, ngokuvamile uzolahlekelwa okungaphezu kwalokho okuzuzayo. Ngokuqondene ne-VC, isidingo somzimba womuntu nokumuncwa kwe-VC kunomkhawulo. I-VC edlula izingxenye ezidingekayo zomzimba womuntu ngeke nje imunceke, kodwa futhi ingabangela kalula isifo sohudo futhi ithinte ngisho nokusebenza kwe-coagulation. Ngakho-ke, izimonyo eziqukethe i-VC akufanele zisetshenziswe ngokweqile.
Isikhathi sokuthumela: Dec-15-2023