Cov neeg hauv ntiaj teb nyiam lub hnub zoo hnia, J. Lo, tsuas yog-rov qab-los ntawm-ib-cruise hom ci ntsa iab ntau npaum li tus neeg tom ntej-tab sis peb yeej tsis nyiam lub hnub nrog kev puas tsuaj uas ua tiav qhov ci ci no. Nkag mus rau qhov zoo nkauj ntawm tus kheej zoo tanner. Txawm hais tias nws tawm ntawm lub raj mis los yog tshuaj tsuag hauv tsev, koj tuaj yeem paub tseeb tias cov mis muaj dihydroxyacetone. Lub npe yeej yog qhov ncauj, uas yog vim li cas dihydroxyacetone feem ntau mus los ntawm DHA.
DHA yog me ntsis ntawm ib tug unicorn nyob rau hauv lub ntiaj teb no kev zoo nkauj muaj nyob rau hauv uas, ib tug, nws tsuas yog pom nyob rau hauv ib qeb ntawm cov khoom, thiab ob, nws yog tiag tiag cov khoom xyaw uas yuav ua li cas nws ua. Nyeem rau kom paub meej tias qhov faux tan los ua li cas.
DIHYDROXYACETONE
HOM NTAU TSHAJ: Ib qho qab zib
TSEEM CEEB: Ua rau muaj tshuaj lom neeg hauv daim tawv nqaij uas tsim kom muaj qhov tsaus ntuj ntawm cov hlwb kom pom tanned.1
YUAV UA LI CAS: Txhua tus neeg uas xav tau lub ntsej muag ntawm lub ntsej muag tsis muaj lub hnub puas tsuaj. DHA feem ntau tau txais txiaj ntsig zoo los ntawm feem ntau, txawm hais tias qee zaum nws tuaj yeem ua rau mob dermatitis, hais tias Farber.
Koj tuaj yeem siv nws npaum li cas: Cov nyhuv darkening ntawm DHA tsim nyob rau hauv 24 teev thiab kav mus txog rau ib lub lim tiam, qhov nruab nrab.
Ua hauj lwm zoo nrog: Ntau cov khoom xyaw hydrating, uas feem ntau ua ke nrog DHA nyob rau hauv cov khoom nws tus kheej tanning, tshwj xeeb yog moisturizers thiab serums, hais tias Farber.
Tsis txhob siv nrog: Alpha hydroxy acids ua kom lub cev tawg ntawm DHA; thaum lawv yog ib txoj hauv kev zoo los tshem koj cov tawv nqaij thaum koj npaj txhij, tsis txhob siv lawv thaum thov tus kheej tanner.
Dihydroxyacetone yog dab tsi?
"Dihydroxyacetone, los yog DHA raws li nws feem ntau raug xa mus rau, yog cov xim tsis muaj suab thaj uas tau siv rau hauv cov neeg tanners feem ntau," Mitchell hais. Nws tuaj yeem yog cov khoom siv hluavtaws los yog muab tau los ntawm cov suab thaj yooj yim pom hauv qab zib beets lossis qab zib cane. Kev ceeb toom kev lom zem: Nws tsuas yog cov khoom xyaw uas pom zoo los ntawm FDA ua tus kheej tanner, ntxiv Lam-Phaure. Thaum nws los txog rau cov khoom lag luam zoo nkauj, koj tsuas pom nws nyob rau hauv tus kheej-tanners, txawm hais tias nws kuj yog qee zaum siv thaum lub sijhawm ua cawv, sau ntawv Mitchell.
Dihydroxyacetone ua haujlwm li cas
Raws li tau hais, DHA qhov tseem ceeb (nyeem: nkaus xwb) muaj nuj nqi yog tsim kom muaj qhov tsaus ntuj ntawm daim tawv nqaij ib ntus. Nws ua li no li cas? Lub sij hawm kom tau zoo thiab nerdy rau ib pliag, vim nws tag nrho cov hinges ntawm Maillard cov tshuaj tiv thaiv. Yog hais tias lub sij hawm hnov zoo, nws yuav yog vim koj tej zaum yuav hnov nws nyob rau hauv tsev kawm ntawv qib siab chemistry chav kawm, lossis thaum saib Food Network. Yog, Food Network. "Cov tshuaj tiv thaiv Maillard yog cov tshuaj tiv thaiv uas tseem hu ua non-enzymatic browning-nws yog vim li cas cov nqaij liab xim av thaum ua noj," piav qhia Lam-Phaure.
Peb paub, nws yog qhov txawv me ntsis los sib piv cov steaks rau tus kheej-tanner, tab sis hnov peb tawm. Raws li nws hais txog ntawm daim tawv nqaij, cov tshuaj tiv thaiv Maillard tshwm sim thaum DHA cuam tshuam nrog cov amino acids nyob rau hauv cov proteins ntawm cov tawv nqaij hlwb, ua rau zus tau tej cov melanoids, los yog xim av pigments, Lam-Phaure piav.1 Qhov no, nyob rau hauv lem, tsim ib tanned. tsos.
Nws dais hais tias qhov no tshwm sim tsuas yog tshwm sim nyob rau hauv lub epidermis, lub sab saum toj txheej ntawm daim tawv nqaij, uas yog vim li cas nws tus kheej-tanner tsis tas mus li.1 Thaum cov tanned hlwb slough tawm, cov darkened tsos ploj. (Nws kuj yog vim li cas exfoliation yog tus yuam sij rau tshem tawm DHA; ntxiv rau qhov ntawd ib pliag.)
FAQ
Puas yog DHA zoo rau daim tawv nqaij?
Dihydroxyacetone, los yog DHA, tau pom zoo nyob rau hauv nws tus kheej-tanning khoom los ntawm ob lub FDA thiab EU lub Scientific Committee on Consumer Safety.3 Nyob rau hauv 2010, lub tom kawg lub koom haum tau hais tias nyob rau hauv ntau txog 10 feem pua, DHA tsis muaj kev pheej hmoo rau cov neeg siv khoom noj qab haus huv.4 Nco ntsoov tias FDA tau hais txog qhov tseem ceeb ntawm kev tsis txhob cia DHA nyob ze koj daim di ncauj, qhov muag, lossis lwm qhov chaw uas muaj cov mucous membranes.5
Puas yog DHA Harmful?
Txawm hais tias FDA tau pom zoo rau daim ntawv thov ntawm DHA nyob rau hauv tus kheej-tanners thiab bronzers, cov khoom no tsis pom zoo rau kev noj - thiab nws tuaj yeem yooj yim rau kev noj DHA yog tias koj ob lub qhov muag thiab qhov ncauj tsis zoo nyob rau hauv lub rooj muag tshuaj tsuag tanning.5 Yog li yog tias koj txiav txim siab tau tshuaj tsuag los ntawm tus kws tshaj lij, xyuas kom koj tau txais kev tiv thaiv txaus.
Post lub sij hawm: May-20-2022