Abantu emhlabeni bathanda ukuqabulwa kwelanga okuhle, u-J. Lo, uhlobo lwe-back-from-a-cruise olukhazimulayo njengokungathi umuntu olandelayo—kodwa asikuthandi ngempela umonakalo welanga ohambisana nalokhu ukuzuza lokhu kukhanya.Faka ubuhle bomshuki omuhle.Noma ngabe iphuma ebhodleleni noma isifutho sangaphakathi esaluni, ungaqiniseka kakhulu ukuthi ifomula iqukethe i-dihydroxyacetone.Igama ngokuqinisekile liwumlomo, yingakho i-dihydroxyacetone ngokuvamile ihamba nge-DHA.
I-DHA ngandlela-thile iyi-unicorn emhlabeni wesithako sobuhle ngokuthi, eyodwa, itholakala kuphela esigabeni esisodwa semikhiqizo, futhi okwesibili, iyona kuphela isithako esingenza lokho ekwenzayo.Qhubeka ufunde ukuze ufunde kahle ukuthi leyo faux tan iba khona kanjani.
I-DIHYDROXYACETONE
UHLOBO LWESITHATHU: Ushukela
IZINZUZO EZINKULU: Ibangela ukusabela kwamakhemikhali esikhumbeni okwenza amangqamuzana abe mnyama ukuze abe mnyama.1
UBANI OKUFANELE AWUYISEBENZISE: Noma ubani ofuna ukugqama ngaphandle kokulimala kwelanga.I-DHA ngokuvamile ibekezelelwa kahle iningi, nakuba ngezinye izikhathi ingabangela i-dermatitis yokuxhumana, kusho u-Farber.
UNGAYISEBENZISA KANGAKANANI: Umthelela wokuba mnyama we-DHA ukhula phakathi namahora angama-24 futhi uhlala iviki, ngokwesilinganiso.
ISEBENZA KAHLE NAKHO: Izithako eziningi zokufaka amanzi, ezivame ukuhlanganiswa ne-DHA emikhiqizweni yokuzishukela, ikakhulukazi izinto zokuthambisa kanye namaserum, kusho uFarber.
UNGASEBENZISI NATHI: I-Alpha hydroxy acids isheshisa ukuwohloka kwe-DHA;kuyilapho ziyindlela enhle yokususa ukubomvu kwakho uma usulungile, ungazisebenzisi uma usebenzisa ukuzishukela.
Iyini i-Dihydroxyacetone?
“I-Dihydroxyacetone, noma i-DHA njengoba kuvame ukubizwa ngayo, iyinhlanganisela kashukela engenambala esetshenziswa kubantu abaningi abazigcobayo,” kusho uMitchell.Ingatholakala ngokwenziwa noma ithathwe kushukela olula otholakala kuma-beet ashukela noma umoba.Isexwayiso seqiniso elijabulisayo: Yisona kuphela isithako esigunyazwe i-FDA njengomshuki wesikhumba, wengeza u-Lam-Phaure.Uma kuziwa emikhiqizweni yobuhle, uzoyithola kuphela kuma-self-tanners, nakuba ngezinye izikhathi ibuye isetshenziswe ngesikhathi sokwenza iwayini, kuphawula uMitchell.
Isebenza kanjani i-Dihydroxyacetone
Njengoba kushiwo, umsebenzi oyinhloko we-DHA (funda: kuphela) uwukudala ukufiphala kwesikhashana kwesikhumba.Ikwenza kanjani lokhu?Isikhathi sokuba mnandi futhi sibe nerdy umzuzwana, ngoba konke kuncike ekuphenduleni kwe-Maillard.Uma leli gama lizwakala lijwayelekile, kungenzeka ukuthi ulizwile ekilasini lamakhemikhali esikole samabanga aphezulu, noma ngenkathi ubuka i-Food Network.Yebo, Inethiwekhi Yokudla.“I-Maillard reaction iwumphumela wamakhemikhali owaziwa nangokuthi i-non-enzymatic browning—yingakho inyama ebomvu iba nsundu uma ipheka,” kuchaza uLam-Phaure.
Siyazi, kuyamangaza ukuqhathanisa i-steak ecwebezelayo nomshuki wezikhumba, kodwa sizwe.Ngokuphathelene nesikhumba, ukusabela kwe-Maillard kwenzeka lapho i-DHA ihlangana nama-amino acid kumaprotheni amangqamuzana esikhumba, okubangela ukukhiqizwa kwama-melanoid, noma ama-pigment ansundu, kuchaza uLam-Phaure.1 Lokhu, futhi, kudala ukushukwa. ukubukeka.
Kuyaphawuleka ukuthi lokhu kusabela kwenzeka kuphela ku-epidermis, ungqimba olungaphezulu lwesikhumba, yingakho umshuki engahlali unomphela.1 Lapho lawo mangqamuzana abashukiwe esehlile, ukubukeka okumnyama kuyanyamalala.(Kungakho futhi ukukhishwa kwesikhumba kuyisihluthulelo sokususa i-DHA; okwengeziwe ngalokho maduzane.)
FAQ
Ingabe i-DHA Iphephile Esikhumba?
I-Dihydroxyacetone, noma i-DHA, ivunyiwe emikhiqizweni yokuzishisa izikhumba kokubili yi-FDA kanye neKomidi Lezesayensi Le-EU Lokuphepha Kwabathengi.3 Ngo-2010, inhlangano yokugcina yathi ekugxilweni okufika kumaphesenti angu-10, i-DHA ayifaki ingozi empilweni yomthengi.4 Qaphela ukuthi i-FDA igcizelela ukubaluleka kokungavumeli i-DHA eduze nezindebe zakho, amehlo, nanoma yiziphi ezinye izindawo ezimbozwe ulwelwesi lwamafinyila.5
Ingabe i-DHA Iyingozi?
Yize i-FDA ikugunyazile ukusetshenziswa kwesihloko se-DHA kuzishuki ezizishuthekayo kanye nama-bronzer, isithako asivunyelwe ukungeniswa—futhi kungase kube lula ukugwinya i-DHA uma amehlo akho nomlomo kungambozwanga kahle endaweni yokushukwa kwesifutho.5 Ngakho-ke uma unquma ukufuthwa uchwepheshe, qiniseka ukuthi uthola ukuvikeleka okwanele.
Isikhathi sokuthumela: May-20-2022