Shin Sunscreen na Halitta Yana Tsaya da Tsaron Rana na yau da kullun?

Wadatacce

• Menene A cikin Tsarin Ma'adinai?
• Matsalar tare da Masu toshe sinadarai
• Don haka Shin Duk Kirim Mai Ma'adinai Yafi Kyau?
• Abin nema
• Bita don

A lokacin bazara, kawai tambaya mafi mahimmanci fiye da "Wace hanya zuwa rairayin bakin teku?" shine "Shin wani ya kawo kariyar rana?" Ciwon kansar fata ba wasa ba ne: Yawan melanoma ya kasance yana ƙaruwa a cikin shekaru 30 da suka gabata, kuma Mayo Clinic kwanan nan ya ba da rahoton cewa nau'in ciwon daji na fata guda biyu ya tashi da kashi-kashi 145 da kashi 263 daga 2000 zuwa 2010.

Duk da cewa mun san kariyar hasken rana yana taimakawa kariya daga cutar daji ta fata, ƙila za ku iya kare fata ta ƙasa da yadda kuke zato ta hanyar zaɓar dabarar da ba daidai ba. Kungiyar Aiki ta Muhalli (EWG) kwanan nan ta fitar da jagoransu na shekara-shekara na 2017, wanda ke kimanta kusan samfuran 1,500 da aka tallata azaman kariyar rana don aminci da inganci. Sun gano kashi 73 cikin ɗari na samfuran ba sa aiki sosai, ko kuma sun ƙunshi abubuwan da ke ɗauke da sinadarai, gami da sunadarai da ke da alaƙa da rushewar hormone da kumburin fata.

Masu binciken su sun nuna cewa duk da cewa yawancin mutane suna mayar da hankali ga babban SPF, abin da ya kamata su duba shi ne sinadaran da ke cikin kwalban. Waɗannan samfuran ƙila za su iya samun haɗarin cutarwa ko haɓakar mahaɗan yawanci sun faɗi cikin rukunin da ake kira tushen ma'adinai, ko "na halitta," hasken rana.

A bayyane yake, da yawa daga cikinku sun riga sun kasance masu son sanin nau'in: Binciken Rahoton Masu Amfani na 2016 ya gano cewa kusan rabin mutanen 1,000 da aka bincika sun ce suna neman samfurin "na halitta" lokacin siyayya don hasken rana. Amma shin da gaske za a iya yin daidai da kariyar da tsarin sinadarai ke bayarwa?

Abin mamaki, likitocin fata biyu sun tabbatar da cewa a zahiri za su iya. Ga abin da kuke buƙatar sani.

Menene A cikin Tsarin Ma'adinai?

Bambanci tsakanin al'ada, sinadarai na tushen sunscreens da nau'in ma'adinai ya zo zuwa nau'in sinadaran aiki. Kirim mai ma'adinai yana amfani da masu toshewar jiki-zinc oxide da/ko titanium dioxide-wanda ke zama ainihin shinge akan fatar ku kuma yana nuna hasken UV. Sauran suna amfani da masu toshe sunadarai-yawanci wasu haɗin oxybenzone, avobenzone, octisalate, octocrylene, homosalate da/ko octinoxate-waɗanda ke shafan hasken UV don watsa shi. (Mun sani, bakin ciki ne!)

Hakanan akwai nau'ikan UV guda biyu: UVB, wanda ke da alhakin ainihin kunar rana a jiki, da hasken UVA, waɗanda ke shiga zurfi. Tushen ma'adinai, masu toshewar jiki suna kare duka biyun. Amma tunda masu toshe sinadarai suna ɗaukar haskoki a maimakon haka, wannan yana ba da damar UVA ta isa ga zurfin zurfin fatar ku kuma ta lalace, in ji Jeanette Jacknin, MD, ƙwararren likitan fata na San Diego kuma marubucin Smart Medicine don Fata.

Matsalar tare da Masu toshe sinadarai

Wani babban damuwa tare da masu hana sinadarai shine ra'ayin cewa suna rushe samar da hormone. Wannan wani abu ne na binciken dabbobi da tantanin halitta ya tabbatar, amma muna buƙatar ƙarin bincike akan mutane don gaya mana yadda yake aiki musamman ga hasken rana (nawa ne sinadarin ke sha, yadda ake fitar da shi da sauri, da sauransu), in ji Apple Bodemer, MD, farfesa a fannin fata a Jami'ar Wisconsin.

Amma karatu akan waɗannan sunadarai, gabaɗaya, suna firgita ga samfur da yakamata mu watsa kowace rana. Chemicalaya daga cikin sunadarai musamman, oxybenzone, an danganta shi da haɗarin haɗarin endometriosis a cikin mata, ƙarancin maniyyi a cikin maza, rashin lafiyar fata, rushewar hormone, da lalacewar sel-da oxybenzone an ƙara zuwa kusan 65 bisa dari na sunscreens marasa ma'adinai a cikin da EWG's 2017 sunscreen database, Dr. Jacknin ya nuna. Kuma sabon binciken daga Rasha wanda aka buga a cikin mujallar Yanayin yanayi ya gano cewa yayin da sinadarin sunscreen na yau da kullun, avobenzone, gaba ɗaya yana da aminci da kansa, lokacin da ƙwayoyin ke hulɗa da ruwan chlorinated da radiation UV, yana rushewa cikin mahaɗan da ake kira phenols da acetyl benzenes, waɗanda aka sani suna da haɗari sosai.

Wani sinadari mai damuwa: retinyl palmitate, wanda zai iya haifar da ci gaban ciwace-ciwacen fata da raunuka lokacin amfani da fata a hasken rana, in ji ta. Ko da a kan ƙaramin shafi mai firgita, oxybenzone da sauran sunadarai suna haifar da matsaloli tare da halayen fata da haushi, yayin da yawancin ma'adanai ba sa yin hakan, Dr. Bodemer ya ce-duk da cewa ta ƙara da cewa galibi wannan batu ne kawai ga manya masu fata mai laushi da yara. .

Don haka Shin Duk Kirim Mai Ma'adinai Yafi Kyau?

Ma'adinai na tushen ma'adinai sun fi na halitta, amma har ma da kayan aikin su masu tsabta suna tafiya ta hanyar tsarin sinadarai a lokacin tsarawa, Dr. Bodemer ya fayyace. Kuma da yawa na ma'adinai na tushen sunscreens da sinadaran blockers a cikinsu, ma. Ta kara da cewa "Ba bakon abu bane a sami hadakar magunguna na jiki da na sinadarai," in ji ta.

Wannan ana cewa, tun da mun san kadan game da abin da masu hana sinadarai ke yi a jikinmu, ƙwararrun biyu sun yarda cewa mafi kyawun faren ku shine isa ga ma'adinan sunscreens tare da masu hana jiki, musamman idan kuna da fata mai laushi.

Babban kariya yana zuwa akan farashi na sama, kodayake: "Babban babban rashi shine cewa yawancin hasken rana na halitta tare da babban sinadarin zinc da titanium dioxide farare ne sosai kuma ba abin jin daɗi bane," in ji Dr. Jacknin. (Ka yi tunanin masu hawan igiyar ruwa tare da farin ratsin hanci.)

Sa'ar al'amarin shine, yawancin masana'antun sun magance wannan ta hanyar haɓaka ƙididdiga tare da nanoparticles, wanda ke taimaka wa farin titanium dioxide ya zama mafi m kuma a zahiri yana ba da mafi kyawun kariya ta SPF-amma a farashin mafi munin kariya ta UVA, in ji Dokta Jacknin. Mahimmanci, dabarar tana da ma'auni na manyan ƙwayoyin zinc oxide don mafi girman kariyar UVA, da ƙananan ƙwayoyin titanium dioxide don haka samfurin zai ci gaba.

Abin nema

Duk da cewa sunscreens na ma'adinai galibi sun fi kyau ga fata, yaya yafi kyau sosai ya dogara da abin da ke ciki. Kamar dai tare da kunshin abinci, kalmar "na halitta" a kan lakabin ba ta da nauyi da gaske. "Duk matakan kariya na rana suna da sinadarai a cikin su, ko ana ɗaukar su na halitta ne ko a'a. Yadda dabi'arsu ta gaske ta dogara da alama," in ji Dokta Bodemer.

Nemo sunscreens tare da kayan aiki masu aiki zinc oxide da titanium dioxide.Wataƙila za ku sami mafi kyawun zaɓi a kantin sayar da waje ko kantin abinci na musamman na kiwon lafiya, amma har ma da samfuran iri kamar Neutrogena da Aveeno suna da dabarun tushen ma'adinai. Idan ba za ku iya samun waɗannan a kan shiryayye ba, mafi kyau shine guje wa waɗanda ke da sunadarai waɗanda kimiyya ta ce sun fi cutarwa: oxybenzone, avobenzone, da retinyl palmitate. (Pro tip: Idan kuna da fata mai laushi, nemi kwalabe da aka lakafta don yara, Dokta Bodemer ya raba.) Dangane da abubuwan da ba su da aiki, Dokta Bodemer ya ba da shawarar neman kwalabe masu lakabi "wasanni" ko "mai jure ruwa" maimakon wani takamaiman tushe. , kamar yadda waɗannan za su daɗe akan gumi da ruwa. Kuma yayin da aka koyar da yawancin mu don neman SPF, har ma da FDA ta kira babban SPF "ɓatacciyar hanya." EWG ya nuna yana da fa'ida sosai don amfani da ƙarancin hasken rana na SPF yadda yakamata fiye da mafi girman rabi. Dokta Bodemer ya tabbatar da cewa: Kowace hasken rana za ta ƙare, don haka komai SPF ko kayan aiki masu aiki, kuna buƙatar sake yin rajista aƙalla kowane sa'o'i biyu. (FYI anan akwai wasu zaɓuɓɓukan kariyar hasken rana waɗanda suka tsaya ga gwajin gumin mu.)

Kuma ko da yake yana iya zama ƙarin wahala don sakawa, zai fi kyau ka manne wa ruwan shafa fuska-wadannan nanoparticles waɗanda ke rage alli ba su da lafiya gabaɗaya, amma na iya haifar da lahani na huhu idan ka shaka su daga maganin feshi, in ji Dokta Jacknin. Wani muhimmin aikace-aikacen FYI: Saboda ma'adinan ma'adinai yana kare ta hanyar samar da shinge, kuna so ku yi la'akari da minti 15 zuwa 20 kafin ku fita - kafin ku fara motsi da gumi - don tabbatar da cewa kuna da fim mai ma'ana a jikin fata da zarar kun yi rana. Dr. Bodemer ya ce. (Don nau'in sinadaran, sanya shi a kan mintuna 20 zuwa 30 kafin fitowar rana don haka yana da lokacin da zai shiga.)

EWG yana ƙididdige kowane nau'in hasken rana don inganci da aminci, don haka bincika bayanan su don ganin inda tsarin da kuka fi so ya faɗi. Kadan daga cikin samfuran da muka fi so waɗanda suka dace da jagororin waɗannan fatar da EWG: Bayan Ƙarƙwarar Ruwa na Ruwa, Badger Tinted Sunscreen, da Neutrogena Sheer Zinc Dry-Touch Sunscreen.

Ka tuna duk da cewa a cikin wani tsunkule, kowane nau'in maganin rana ya fi kyau a'a hasken rana. "Mun san radiation UV shine carcinogen ɗan adam-tabbas yana haifar da cututtukan fata irin na melanoma, kuma ƙonawa musamman yana da alaƙa da melanoma. Fitowa cikin rana yana da mafi girman yiwuwar haifar da cutar kansa fiye da sanya hasken rana akan fata, Dr. Bodemer ya kara da cewa.

Bita don