Uyazi ukuthi i-sunscreen iyadingeka kuhlelo lwakho lwe-skincare, hhayi nje ukuvimbela ukushisa kwelanga. Ukusetshenziswa kwe-sunscreen njalo kuzosiza ukuvimbela ukuguga ngaphambi kwesikhathi , izindawo ezimnyama, ithoni yesikhumba engalingani, ngisho nomdlavuza wesikhumba .
Unokukhetha okuningi manje kunanini ngaphambili, ikakhulukazi endaweni yemvelo yelanga. Kodwa zonke lezo zikhetho zingaba zikhulu kakhulu.
Sikuqeda konke lapha, ukukusiza ukwenza ukhetho lokukhanya kwelanga okwenzelwe wena nomndeni wakho.
(Ngaphandle kwalokho, imboni yobuhle nesayensi inegama elihlukile kakhulu. Ngokuyisisekelo, futhi ngokusho kwesayensi, konke kwenziwa ngamakhemikhali: ilanga, ilanga, imithi, wena, nami. Uma sikhuluma imikhiqizo yobuhle, igama elithi ikhemikhali isetshenziselwa ukubhekisela kunoma yini eyenziwe umuntu noma engeyona yemvelo. Ngakho, ngezinhloso zethu manje sizosebenzisa amakhemikhali kanye nokusebenzisa isikhathi esithile sokwenziwa komsebenzi ngokufanayo.)
Kungani Kufanele Ukhethe Umshini Wesikrini Wesihlahla?
Wonke umuntu okhetha ukuhamba nge-sunscreen yemvelo wenza kanjalo ngezizathu zawo siqu, kodwa nansi ezinye ezithandwa kakhulu:
- Ukuvezwa kwehlisa amakhemikhali okwenziwa. Iningi labantu likhetha ama-sunscreen yemvelo ngoba lifuna ukunciphisa inani lamakhemikhali abazobhekwa kuwo nsuku zonke. Abanye abantu abazethembi izithako zamakhemikhali futhi abafuni ukubeka esikhumbeni sabo. Njengoba sekusele isikhathi eside, ezinye zezithako ezitholakala emasimini e-sunscreen amakhemikhali ziye zahlolisiswa. U-oxybenzone uboniswe ukuphazamisa ama-hormone, okungenani kumarori webhubhu. Ezinye izithako ezisebenzayo kuma-sunscreen amakhemikhali ziye zaxhunyaniswa nokuphazamiseka kwe-hormone kanye nomdlavuza. Futhi, lezi zithako azibonakali zingaphephile. Ayikho ubufakazi obuqinekile bokuthi noma yiziphi izithako zokwenziwa ezisetshenziselwa ukukhanya kwelanga zilimaza-kubantu okungenani.
- Ukunciphisa ngemithelela emibi emvelweni. Kukhona ubufakazi bokuthi ama-sunscreen asekelwe ngamakhemikhali ahlambalaza imvelo. Iya endaweni yangaphandle ye-beach? Abanye badinga ukuthi usebenzise ama-sunscreen asekelwe emvelo kuphela, ukuze ugweme ukulimala okungenzeka kuzinto eziphilayo ezibuthakathaka.
- Isikrini socingo lwama-synthetic sisilimaza isikhumba sakho. Uma unesikhumba esibucayi ikakhulukazi, i- eczema , i- psoriasis , noma ukucasula okulula okuvela emasimini e-sunscreen , khona-ke umvelo ungase ube yinto enhle kuwe. Izithako ezisebenzayo emasimini asetshenziselwa ukukhanya kwelanga (okuningi ngalokho okushiwo yilokho okuncane) kungencane amathuba okubangela ukucasuka kwesikhumba kunokuba izithako zelanga zesikhumba zamakhemikhali. Ngakho-ke, abantu abanesikhumba esibucayi bangathola ukuvikeleka kwelanga ngaphandle kokucasula isikhumba sabo.
Yini Eyenza Umswakama Wesikrini Wendalo "Wokwemvelo?"
Kulula nje, yizithako ezisebenzayo esibukweni selanga esinqumayo ukuthi i-sunscreen iyimvelo noma cha. E-US, i-titanium dioxide ne-zinc oxide yizona kuphela izithako zangasese zelanga ezivunywa yi-FDA.
Uma lezi zimaminerali zakha izithako ezisebenzayo esikrinini sakho selanga, "zendalo". Uma iqukethe izithako ezisebenzayo ezinjenge-oxybenzone, i-octinoxate, noma i-avobenzone, akuyona isikrini somswakama wezinto eziphilayo kodwa kunalokho i-sunscreen yemikhiqizo.
Kodwa, ungavumeli inkulumo yemvelo ikukhohlise ukuba ucabange ukuthi uthole amaphesenti angu-100 emkhiqizo wemvelo. Wena (cishe) akunjalo. Khumbula, "izinto zemvelo" ebusweni bakho besikhumba semvelo kuphela kubhekisela ezingxenyeni ezisebenzayo. Zonke ezinye izithako zelanga lesikrini zingenziwa ngokuphelele.
Umehluko Phakathi kwe-Suniccreen Organic ne-Sunscreen yemvelo
Impendulo emifushane: i-organic yisikhathi sokumaketha, okungenani lapho imboni yobuhle ibhekene nayo, futhi ayihlangene nezithako ezisebenzayo esikrinini sakho selanga. Ukuze siphendule isikhathi eside, kufanele sibheke lapho imboni yobuhle nomphakathi wesayense ihlukana futhi.
Ngokwesayensi, ama-organic compounds aqukethe i-carbon. I-Titanium dioxide ne-zinc oxide ayinayo i-carbon-yizinto ezibonakalayo.
Izithako eziningi ezakhiweni zelanga ziqukethe ikhabhoni, ngakho-ke ziyizinto ezisebenzayo Izithako eziningi zokwenziwa kwesikrini ziqukethe ikhabhoni, ngakho ziyizinto eziphilayo .
I-FDA ayinayo imikhombandlela ethize mayelana nokuthi yini eyenza umkhiqizo ophilayo. Ngakho-ke, kubonakala sengathi i-counterintuitive, kodwa izithako zemvelo zelanga ziyizinto "ezingavamile," futhi ama-sunscreen angakhiwa angabizwa ngokuthi "eziphilayo."
Yazi ukuthi i-label ebonakalayo esikhanyeni selanga ngokuvamile isho ukuthi inehlobo oluthile lwezithako ze-botanical (itiye elihlaza elikhiphayo, isibonelo) elakhiwe ngaphandle kwe-pesticide. I-Organic ayisho ukuthi umkhiqizo wakho ungamaphesenti angu-100 wemvelo, engenzi-synthetic, noma esebenzisa izithako ezisebenzayo zemvelo.
I-Zinc Oxide ne-Titanium Dioxide Yiyona Yodwa I-Sunscreen Yemvelo Imishini Esebenzayo
Njengoba sishilo ngaphambili, i-zinc oxide ne-titanium dioxide yizona izithako ezivunyelwe i-FDA ukunikeza i- SPF yakho yesikrini semvelo. I-zinc oxide ne-titanium dioxide yizimbiwa, ezitholakala emhlabeni. Uma bengena esikrinini sakho selanga, kunjalo, baye bacubungulwa futhi bahlanjululwa.
Cishe ujwayele lawa amaminerali. Bazali, nizojwayelana ne-zinc oxide eminye imikhiqizo: baby powder kanye nama-creams. I-diaper ukushisa ama-creams aqukethe amathani we-zinc oxide; kuyisithako esiqinisa futhi siphulukisa phansi ingane yakho.
I-Titanium dioxide isetshenziswa kakhulu embonini yokunakekela isikhumba. Isetshenziselwa ukwakheka kwamaminerali kanye nezisekelo, amasobho, ama-lotions, kanye ne-toothpaste. Ungase umangale uma ufunda ukuthi kutholakala nokunye kokudla kwethu, ikakhulukazi izinto ezifana namacandi kanye nokuhlafuna i-gum, ukudala umbala umkhiqizi owufunayo.
Ama-sunscreen yemvelo asebenza ngokuhlukile
Ama-sunscreen yemvelo asebenza ngokuhlukile kunama-sunscreens amakhemikhali. Izithako ze-sunscreen ezihambisanayo zithatha imisebe ye-UV. I-zinc oxide ne-titanium dioxide, ngakolunye uhlangothi, yizicabha zelanga. Abawutholi imisebe ye-UV, bayawavimbela . Kufana nokuba ne "izihlangu" ezimbalwa phezu kwesikhumba sakho esikuvikela ekukhanyeni kwelanga.
Kunesinye isibonakaliso sokuthi ukusebenzisa ama-sunscreen yangempela isikhathi eside sikunikeza ukuvikeleka okungcono ngokumelene ne- photoaging ngoba, ngokungafani nama-sunscreen wokufakelwa, akukho ukuphendula kwamakhemikhali okwenzeka esikhumbeni sakho.
Ziyi-Opaque Eningi Kunama-Sunscreen Synthetic
Umehluko ocacile kakhulu phakathi kwelanga lokushisa ne-sunscreen yindlela abamba ngayo isikhumba. Ama-sunscreen yemvelo ane-texture ehlukile nokuvumelana okungafani nemikhiqizo yakho ejwayelekile yelanga. Abantu abaningi bayichaza njengokwedlulele. Kungathatha ukuxubha okungaphezulu ukuze kutholakale ngokugcwele.
Uma usetshenziselwa indlela yokwenzela i-sunscreen eyenziwa ngayo yanyamalala esikhumbeni sakho ngaphandle kokulandelana, ungase umangale okokuqala uma usebenzisa isikrini selanga somvelo. Bashiya ifilimu encane e-opaque ukuze igcwalise izitshalo ezimhlophe, kuye ngokuthi umkhiqizo nokwakheka kwakho oyisebenzisayo.
I-zinc oxide kanye ne-titanium dioxide ngamaminerali amhlophe amhlophe ukuthi, ngendlela yabo engokwemvelo, angangeni emzimbeni. Kunalokho, bahlala phezulu ukuze bavimbe ilanga. (Cabanga ngesilondolozi esikoleni esidala esinamhlophe ngaphesheya kwebhuloho lempumu-yi-zinc oxide.)
Imikhiqizo equkethe i-zinc oxidizeddididididi noma i-titanium dioxide izoxuba kakhulu ngokushelela futhi ngokulinganayo esikhumbeni. Uma zingapheli ngokuphelele, ziza kahle zifakwe eduze.
Amaminerali ahlanganisiwe afana nobukhulu obukhulu futhi obuncane, ngakho-ke abonakala kancane esikhumbeni. Kodwa lokhu akukhona ngaphandle kokuphikisana.
Ngenkathi i-zinc oxide ne-titanium dioxide engangeni emzimbeni wabo wemvelo, lapho umhlabathi ube yizinhlayiya ezincane kakhulu (okuthiwa i- nanoparticles ) zingangena kalula emzimbeni. Imiphumela okungenzeka ibe nayo empilweni yethu, uma ikhona, ingafundiwe ngokugcwele njengamanje. Abanye abantu bakhetha ukugwema nanoparticles ngenxa yalokhu.
Amafutha Okutshala Angeke Akuvikele KuLanga
Kuleli qophelo, ikakhulukazi uma u-DIYer othanda, ungase ucabange ngokumisa nje isikrini somzimba ngokwakho. Ngeshwa, akusikho indlela yokwenza lokhu futhi uqiniseke ukuthi uthola i-SPF oyidingayo ukuvikela isikhumba sakho.
Ngokuphambene nalokho okushiwo amabhulogi amaningi, amavidiyo aku-intanethi, nokunye okunjalo kungathi, awekho ama-plant plant, amafutha abalulekile, amakhambi, njll ongayisebenzisa esikhumbeni sakho ukukunika ukuvikelwa kwelanga lemvelo. Yebo, kuyiqiniso ukuthi ezinye zezitshalo zinamakhono okukhanya kwelanga. Amafutha kakhukhunathi namafutha abomvu okusajingijolo abomvu banamandla okuvimbela imisebe ye-UV , isibonelo. Kodwa kuphansi , ukunikeza kuphela i-SPF 7 okungcono kakhulu futhi i-SPF 1 ekubi kakhulu.
Futhi, lawo mafutha awavimbeli i-UV ezinkathini zokulinganisa ezilungile. Ngamafuphi, bavumela imisebe yokushisa-ne-tan idlule, ingenzi lutho ukuvikela isikhumba sakho. Imithombo ethi izicelo zokufakazela ziye zafakazela ukuthi la mafutha anamakhono okuhlola ilanga futhi angasetshenziswa njengelanga lokukhanya kwelanga, ngokuqondile, ukungaqondakali idatha. Ngakho, weqa lokhu umkhiqizo we-DIY ukuze ulondoloze isikhumba sakho.
Uhlu Lokuhlola Loku-4 Lokukhetha Isikrini Sezinsuku Zemvelo
Manje unolwazi oluhle lokusebenza mayelana nama-sunscreen yemvelo nokuthi asebenza kanjani. Ulungele ukukhetha umkhiqizo ofanele wena? Lolu hlu luzokusiza:
- Bheka izithako ezisebenzayo. Ufuna ngokuqondile i-zinc oxide, noma yedwa noma nge-titanium dioxide. I-zinc oxide ihlinzeka nge-SPF ebanzi, ngakho iyokuvikela emiphakathini yomabili ye-UVA ne-UVB. I-Titanium dioxide iphumelela kakhulu ngokumelene ne-UVB kuphela, ngakho ngeke ikuvikele ngaphesheya kwe-spectrum egcwele futhi akumele isetshenziswe njengesithako esisebenza ngokuzimela. Kodwa kungasiza ekuthuthukiseni ukusebenza kwe-zinc oxide.
- Khetha i-SPF engama-30 noma ngaphezulu. Uzofuna ukuthi i-SPF yakho ibe okungenani i-30. Lokhu kuqinisekisa ukuthi uthola ukuvikeleka okwanele isikhathi esilinganiselwe. I-SPF ingaqhubeka ifike ku-50+, kodwa uma uthola ngaphezu kwe-SPF 30 ukwanda kwelanga ukuvikelwa kwakho kuyanda.
- Bheka ezinye izithako uma ufuna yonke-yemvelo. Ayikho isethi esimisiwe yalokho okushiwo "imvelo" yezimonyo (njengemikhiqizo yokunakekelwa kwesikhumba kanye ne-makeup) noma ngezidakamizwa ezingaphezu kwezinto (ezifana nemikhiqizo ye-acne neskrini). Ngakho-ke, uma ufuna inketho engaphezulu yemvelo yesikrini selanga (nanoma imuphi umkhiqizo wokunakekela isikhumba salolu daba) kuzodingeka wenze uphenyo oluncane. Kungenxa yokuthi i-sunscreen inezithako ezisebenzayo ezingokwemvelo azikwenzi ngokwayo imvelo engamaphesenti angu-100 wemvelo. Imoto- ngokuyinhloko zonke ezinye izithako esisesibonini selanga-isengabandakanya izithako zokwenziwa. Lokhu akukwenzelisi ukukhanya kwelanga noma ngcono kunabanye. Ivele ifike ngaphansi kohlobo luni lomkhiqizo oyifunayo nalokho okuthandayo.
- Nquma ukuthi ufuna umkhiqizo omisiwe noma ongewona we-nanoparticles . Umkhiqizo obizwa nge-micronized , noma phambili noma ezenzakalweni ezisebenzayo, uzokunika isikrini selanga esithatha ngokugcwele ngokugcwele futhi sishiya isikhala esincane esikhumbeni. Lokhu kuzokunika umphumela wokuphela obukeka futhi uzizwa ufana ne-sunscreen yokwenza izinto ongayisebenzisa. Ngakolunye uhlangothi, imikhiqizo engeyona micronized noma engekho nano izoshiya ifilimu emhlophe ngaphesheya kwesikhumba ongeke ukwazi ukusihlahlela. Kodwa, uma ukhathazekile ngengozi yezempilo yama-nanoparticles, lokhu kungase kube i-trade-off eyamukelekayo kuwe.
Izwi elivela
Kunolwazi oluningi ngaphandle lapho kuvikela ukukhanya kwelanga nokukhanya kwelanga, kokubili kwemvelo hhayi okungokwemvelo. Kungaba yisifundo esididekayo, ngoba nje kukhona ulwazi oluningi oluphikisanayo nezinketho eziningi zomkhiqizo.
Khumbula-ke ukuthi umkhiqizo ongcono wokukhanya kwelanga ungumuntu oyithandayo, futhi lokho uzizwa kahle esikhumbeni sakho ngoba lokho kuyomkhiqizo oyisebenzisayo ngempela . Futhi lokho kusetshenziselwa okuqhubekayo kwesikrini sakho selanga esizokunikeza ukuvikelwa okungcono kakhulu.
Uma usadinga usizo ekukhetheni umkhiqizo, cela udokotela noma dermatologist ngezincomo zabo.
> Imithombo:
> Grande F, Tucci P. "Titanium Dioxide Nanoparticles: Ingozi Yezempilo Yomuntu?" Ukubuyekezwa Kwamaminithi Emithi Yezokwelapha. 2016; 16 (9): 762-9.
> Olsen CM, Wilson LF, Green AC, Biswas N, uLoyalka J, Whiteman DC. "Ukuvimbela i-DNA Ukulimala Ekhanda Lomuntu Ngama-Sunical Screens." I-Photodermatoloy, i-Photoimmunology, ne-Photomedicine. 2017 Feb 6.
> Ou-Yang H, Jiang Ll, Meyer K, Wang SQ, Farberg AS, Rigel DS. "Ukuvikeleka Kwelanga Nge-Umbrella Ebhantshi vs I-Sunscreen Nge-High Sun Protection Factor: Isivivinyo Sengqalasizinda Esingahleliwe." I-JAMA Dermatology. 2017 Mashi 1; 153 (3): 304-308.
> Saewan N, Jimtaisong A. "Imikhiqizo yemvelo njenge-Photoprotection." I-Journal of Cosmetic Dermatology. 2015 Mar; 14 (1): 47-63.
> Souza C, Maia Campos P, uSchanzer S, Albrecht S, uLohan SB, et. al. "Umsebenzi oqhamukayo we-Sunscreen ocebiswe yi-Antioxidants Ukuhlinzeka Isivikelo Emkhakheni Wamabala Welanga Wonke." I-Skin Pharmacology ne-Physiology. 2017 Mashi 21; 30 (2): 81-89.