Ekuqaleni kwenkathi yasehlobo, abaningi bethu bayazibuza mayelana ne-sun cream engcono kakhulu, ebuye inakekele imvelo. Nakuba kukhona abavikeli abanezithako ezisimeme, kuze kube manje ingxenye yenkanyezi ibingakathulwa: i-methylene eluhlaza okwesibhakabhaka.
Lesi sithako, esingaziwa kwabaningi kuze kube manje, siyisivikelo se-UV esisebenza kahle kakhulu. Kutholwe ukuthi uma isetshenziswa ngenkathi ibhukuda olwandle, ingaphinde inakekele izixhobo zamakhorali kanye nemvelo yasolwandle.
I-Oxybenzone ingase ingabi nanzuzo emvelweni
Una ucwaningo olusha iphakamisa ukuthi i-methylene eluhlaza okwesibhakabhaka ingase ibe isithako esithatha indawo yabo bonke labo ababeka impilo yasolwandle nokusimama engozini. Ngaphezu kwalokho, ivikela isikhumba somuntu emiphumeleni eyingozi yemisebe yelanga.
Emikhiqizweni yamanje, i-blocker yamakhemikhali esetshenziswa kakhulu emisebeni ye-ultraviolet yi i-oxybenzone. Bamunca imisebe ye-ultraviolet B (UVB) kanye ne-ultraviolet A (UVA). Imisebe ye-UVA ihlotshaniswa nokuguga kwesikhumba futhi inobude obude begagasi. Ngakolunye uhlangothi, imisebe ye-UVB yileyo ehlobene nokusha kwesikhumba futhi enobude obufushane begagasi.
Ngenhlanhla, kunamazwe amaningi avimbele ukusetshenziswa kwe-oxybenzone, kanye nokuphuma kwayo, ukuvimbela umthelela omubi kuzinto eziphilayo zasolwandle. Nakuba abathengi ikakhulukazi becabanga nge-sun protection factor (SPF) ukugwema ukushiswa yilanga kanye nezinkinga zempilo ezingaba yingozi esikhathini eside.
Abacwaningi badalule uhlobo lwekhorali elithambile enanini elifanayo le-oxybenzone noma i-methylene eluhlaza okwesibhakabhaka. Lezi ziqaphe ukukhula kwezinhlobo zamakhorali athambile, kanye nezimpendulo zazo kuzo zombili izingxenye. Bathole ukufiphala okukhulu nokufa kwamakhorali kumakhorali e-Xenia aphathwe nge-oxybenzone esikhathini esingaphansi kwesonto, kuyilapho i-methylene eluhlaza okwesibhakabhaka ayinayo imiphumela emibi empilweni yamakhorali, ngisho nasezindaweni eziphakeme zokugxila.
I-Methylene eluhlaza okwesibhakabhaka iyi-blocker ephumelela kakhulu
Le nto inikeza isivikelo emisebeni ye-ultraviolet. Ucwaningo luphakamisa ukuthi “I-methylene blue iyisivimbeli se-UVB esisebenzayo“, enezici ezifiseleka kakhulu, ngokusho kukaDkt. Kan Cao, umbhali oholayo nomsunguli we-Mblue Labs, Bluelene Skincare.
I-Methylene eluhlaza okwesibhakabhaka ikhombisa ukumuncwa okubanzi kwemisebe ye-UVB kanye ne-UVA, ikhuthaza ukulungiswa kokuphazamiseka kwe-DNA, futhi ayidali monakalo ezitsheni zamakhorali. Abacwaningi, ababehlanganisa ososayensi abavela ku-Mblue Labs kanye neYunivesithi yaseMaryland, babheke izinzuzo zokuvikelwa kwe-UV ze-methylene eluhlaza okwesibhakabhaka phakathi kwabantu abasha nabadala, futhi baqhathanisa imiphumela ne-Oxybenzone.
Ucwaningo luphethe ngokuthi okuluhlaza okwesibhakabhaka kudonsa imisebe ye-UVA ne-UVB futhi kusize ukulungisa umonakalo we-DNA obangelwa imisebe ye-ultraviolet. Ngakho-ke ukukhetha okuthile kungasungulwa phezu kwe ama-sunscreens ajwayelekile. Ngaphezu kwalokho, ososayensi baphinde baqhathanisa i-methylene eluhlaza okwesibhakabhaka namanye ama-antioxidants okunakekelwa kwesikhumba ajwayelekile afana novithamini A novithamini C emandleni ayo okunciphisa ingcindezi ye-oxidative yamaselula. Kuthiwa i-methylene eluhlaza okwesibhakabhaka iyasebenza ekucindezelekeni kwamaseli.
Inhlanganisela ye-methylene eluhlaza okwesibhakabhaka kanye ne-vitamin C ingaba nayo imiphumela elwa nokuguga, ikakhulukazi esikhumbeni sabantu abadala, okuphakamisa umphumela omuhle kokubili.
Ucwaningo olusha luphakamisa ukuthi i-methylene eluhlaza okwesibhakabhaka kungenzeka ibe yisithako esisebenzayo ama-sunscreens ngoba iphephile kuma-coral reef futhi inganikeza ukuvikeleka kobubanzi obubanzi kuyo yomibili imisebe ye-UVA ne-UVB.