Cov neeg hauv ntiaj teb no nyiam lub hnub ci zoo li J. Lo, uas nyuam qhuav rov qab los ntawm kev caij nkoj ib yam li lwm tus neeg nyiam—tab sis peb yeej tsis nyiam qhov kev puas tsuaj los ntawm lub hnub uas ua rau lub hnub ci no. Nkag mus rau qhov zoo nkauj ntawm cov tshuaj pleev tawv nqaij zoo. Txawm tias nws tawm hauv lub raj mis lossis tshuaj tsuag hauv salon, koj tuaj yeem paub tseeb tias cov mis muaj dihydroxyacetone. Lub npe yeej yog ib qho lus, yog vim li cas dihydroxyacetone feem ntau yog DHA.
DHA yog ib yam khoom xyaw zoo tshaj plaws hauv ntiaj teb kev zoo nkauj vim tias, ib qho, nws tsuas pom muaj nyob rau hauv ib pawg khoom xwb, thiab ob, nws yog tib yam khoom xyaw uas ua tau qhov nws ua. Nyeem ntxiv kom paub meej tias qhov faux tan los ua li cas.
DIHYDROXYACETONE
HOM KHOOM XYAW: Ib qab zib
COV TXHOJ CAI TSEEM CEEB: Ua rau muaj kev tshuaj lom neeg hauv daim tawv nqaij uas ua rau cov hlwb tsaus ntuj thiab ua rau lawv zoo li xim av.1
LEEJ TWG YUAV TSUM SIV: Txhua tus neeg uas xav kom daim tawv nqaij zoo li xim av yam tsis raug tshav ntuj. Feem ntau DHA tsis ua rau neeg feem coob mob, txawm hais tias qee zaum nws tuaj yeem ua rau mob dermatitis, Farber hais.
KOJ SIV TAU LI CAS: Qhov cuam tshuam ntawm DHA ua rau tsaus ntuj tshwm sim hauv 24 teev thiab kav ntev txog ib lub lim tiam, qhov nruab nrab.
UA HAUJ LWM ZOO NROG: Ntau cov khoom xyaw hydrating, uas feem ntau ua ke nrog DHA hauv cov khoom siv tanning tus kheej, tshwj xeeb tshaj yog cov tshuaj moisturizers thiab serums, Farber hais.
TSIS TXHOB SIV NROG: Alpha hydroxy acids ua rau DHA tawg sai dua; thaum lawv yog ib txoj hauv kev zoo los tshem koj cov tawv nqaij tan thaum koj npaj txhij, tsis txhob siv lawv thaum siv cov tshuaj pleev tawv nqaij tanning.
Dihydroxyacetone yog dab tsi?
"Dihydroxyacetone, lossis DHA raws li nws feem ntau hu ua, yog ib qho suab thaj tsis muaj xim uas siv rau hauv feem ntau cov tshuaj pleev tawv nqaij," Mitchell hais. Nws tuaj yeem tau los ntawm cov suab thaj yooj yim uas pom muaj nyob rau hauv cov suab thaj beets lossis qab zib. Qhov tseeb lom zem ceeb toom: Nws yog tib qho khoom xyaw uas FDA pom zoo ua cov tshuaj pleev tawv nqaij, Lam-Phaure ntxiv. Thaum nws los txog rau cov khoom siv zoo nkauj, koj tsuas yog pom nws hauv cov tshuaj pleev tawv nqaij, txawm hais tias nws kuj qee zaum siv thaum lub sijhawm ua cawv txiv hmab, Mitchell sau tseg.
Dihydroxyacetone Ua Haujlwm Li Cas
Raws li tau hais lawm, DHA lub luag haujlwm tseem ceeb (nyeem: tsuas yog) yog los tsim kom daim tawv nqaij tsaus ib ntus. Nws ua li cas? Lub sijhawm los ua kom zoo nkauj thiab nerdy ib pliag, vim tias nws txhua yam nyob ntawm Maillard reaction. Yog tias lo lus zoo li paub, nws yuav yog vim koj tej zaum hnov nws hauv chav kawm chemistry hauv tsev kawm ntawv theem siab, lossis thaum saib Food Network. Yog lawm, Food Network. "Maillard reaction yog ib qho tshuaj lom neeg uas tseem hu ua non-enzymatic browning - nws yog vim li cas nqaij liab browns thaum ua noj," Lam-Phaure piav qhia.
Peb paub, nws txawv me ntsis thaum piv ib daim nqaij nyuj kub kub rau tus neeg pleev tawv nqaij rau nws tus kheej, tab sis mloog peb hais. Raws li nws hais txog daim tawv nqaij, qhov kev ua haujlwm Maillard tshwm sim thaum DHA cuam tshuam nrog cov amino acids hauv cov protein ntawm cov hlwb tawv nqaij, ua rau muaj cov melanoids, lossis cov xim av, Lam-Phaure piav qhia.1 Qhov no, ua rau muaj qhov tsos tawv nqaij dub.
Nws tsim nyog hais tias qhov kev ua no tsuas yog tshwm sim hauv daim tawv nqaij epidermis, txheej sab saud ntawm daim tawv nqaij, yog vim li cas kev pleev xim rau tus kheej tsis yog tas mus li.1 Thaum cov hlwb pleev xim ploj mus, qhov tsaus ntuj ploj mus. (Nws kuj yog vim li cas kev pleev xim rau daim tawv nqaij yog qhov tseem ceeb rau kev tshem tawm DHA; yuav tsum paub ntxiv txog qhov ntawd sai sai no.)
Cov Lus Nug Feem Ntau
DHA puas muaj kev nyab xeeb rau daim tawv nqaij?
Dihydroxyacetone, lossis DHA, tau txais kev pom zoo rau cov khoom siv pleev xim rau tus kheej los ntawm FDA thiab EU Pawg Neeg Saib Xyuas Kev Nyab Xeeb ntawm Cov Neeg Siv Khoom.3 Xyoo 2010, lub koom haum tom kawg tau hais tias hauv cov concentration txog li 10 feem pua, DHA tsis muaj kev pheej hmoo rau kev noj qab haus huv ntawm cov neeg siv khoom.4 Nco ntsoov tias FDA hais txog qhov tseem ceeb ntawm kev tsis txhob cia DHA nyob ze koj daim di ncauj, qhov muag, lossis lwm qhov chaw uas cov ntaub so ntswg npog.5
DHA puas muaj teeb meem?
Txawm hais tias FDA tau pom zoo rau kev siv DHA rau ntawm daim tawv nqaij rau cov neeg uas pleev xim rau lawv tus kheej thiab cov neeg pleev xim rau daim tawv nqaij, cov khoom xyaw no tsis tau pom zoo rau kev noj - thiab nws yuav yooj yim rau kev noj DHA yog tias koj ob lub qhov muag thiab qhov ncauj tsis tau npog zoo hauv lub txee tsuag pleev xim rau daim tawv nqaij.5 Yog li ntawd, yog tias koj txiav txim siab kom tus kws tshaj lij txau tshuaj rau koj, xyuas kom koj tau txais kev tiv thaiv txaus.
Lub sijhawm tshaj tawm: Tsib Hlis-20-2022