Yog Arbutin haum rau kev siv nruab hnub

Arbutin, tseem hu ua myricetin, yog cov tawv nqaij ua kom tawv nqaij ua haujlwm zoo uas ua ke cov ntsiab lus ntawm "ntsuab", "kev nyab xeeb", thiab "ntau" vim tias nws yog los ntawm cov nroj tsuag ntsuab ntsuab. Arbutin yog ib tug zoo tagnrho whitening neeg sawv cev rau cov tshuaj pleev ib ce, nrog ob optical isomers, uas yog α "Thiab" "hom, nrog rau kev ua si lom yog" "isomer." ". Nws yog ib qho dawb me ntsis yellowish hmoov nyob rau hauv chav tsev kub, yooj yim soluble nyob rau hauv dej, thiab yog ntxiv rau ntau whitening thiab tu cov khoom.

Arbutin hmoov yog ib qho kev nyab xeeb tshaj plaws thiab ua tau zoo ntawm cov khoom xyaw whitening tam sim no nrov txawv teb chaws, thiab tseem yog qhov sib tw tshaj plaws ntawm daim tawv nqaij ntxuav hniav dawb thiab freckle tshem tawm cov neeg sawv cev hauv lub xyoo pua 21st. Nyob rau hauv cov tshuaj pleev ib ce, nws muaj peev xwm zoo whiten thiab tshem tawm freckles ntawm daim tawv nqaij, maj mam ploj thiab tshem tawm freckles, chloasma, melanosis, pob txuv, thiab hnub nyoog me ntsis. Kev nyab xeeb siab, tsis muaj qhov khaus, rhiab heev, thiab lwm yam kev mob tshwm sim. Txhawm rau kom ruaj khov kev ua tau zoo, qhov tsim nyog ntawm cov tshuaj tiv thaiv kab mob xws li sodium bisulfite thiab vitamin E feem ntau yog ntxiv kom ua tiav cov tawv nqaij zoo dua, tshem tawm cov tawv nqaij, moisturizing, softening, wrinkle tshem tawm, thiab tiv thaiv cov teebmeem. Nws tuaj yeem siv los tshem tawm qhov liab thiab o, txhawb kev kho qhov txhab tsis muaj qhov caws pliav, thiab inhibit qhov tsim ntawm dandruff.

Arbutin hmoov muaj ob lub qauv: alpha arbutin hmoov thiab beta arbutin hmoov.

(1). Qhov chaw ntawm α- Arbutin thiab β-arbutin yog qhov sib txawv kiag li.

β-Arbutin tuaj yeem muab rho tawm los ntawm cov nroj tsuag los ntawm kab lis kev cai ntawm tes thiab cov khoom siv dag zog, kev hloov pauv enzyme, thiab kev cog qoob loo.

α- Arbutin feem ntau tsuas yog ua rau cov piam thaj hloov pauv los ntawm cov enzymes ntawm cov kab mob sib txawv, tso cai rau ib qho molecule ntawm qabzib thiab ib lub molecule ntawm hydroquinone los ua ke los ua ib qho α- Arbutin. Superior stability, kev ua tau zoo, thiab kev nyab xeeb β-Arbutin.

(2). α- Tus nqi ntawm arbutin yog β- Txog 8 npaug ntau npaum li arbutin.

(3). α- Cov nyhuv whitening ntawm arbutin yog β- Ntau tshaj 15 npaug ntau npaum li arbutin.

(4). α- Arbutin muaj zog inhibitory nyhuv ntawm tyrosinase kev ua.

(5). α Ursolin muaj kev ruaj ntseg zoo dua, α Arbutin tsis decompose ntawm qhov kub ntawm 100 ° C; β Arbutin decomposes me ntsis tshaj 60 ° C.

(6). α- Arbutin tsis yog photosensitive thiab siv tau thaum nruab hnub.

(7). α- Arbutin tsis muaj nyob hauv cov xwm txheej thiab tsuas yog tau los ntawm fermentation.

(8). β- Arbutin tau siv nyob rau hauv kev ua lag luam ntev, yog li cov arbutin feem ntau yog β- Arbutin es tsis txhob α- Arbutin.

Arbutin txo qhov tsim ntawm melanin los ntawm inhibiting qhov kev ua ntawm enzyme tyrosinase uas tsim melanin, thiab nws cov txheej txheem ntawm kev ua zoo ib yam li cov tshuaj ntxuav hniav dawb hydroquinone.Arbutin muaj ntau cov piam thaj molecules nyob rau hauv nws cov qauv ntau dua li hydroquinone, uas yog tsawg irritating thiab muaj peev xwm. pub dawb ntxiv rau cov khoom siv tu nrog kev txwv siab txog li 7%.

Lub active molecule ntawm arbutin tuaj yeem nkag mus rau hauv cov txheej txheem basal kom tshem tawm qhov tob tob, thiab muaj kev kho mob muaj zog ntawm chloasma, pob dub, sunburn, thiab pigmentation sab laug los ntawm kev tsis haum tshuaj. Txawm li cas los xij, yog tias qhov concentration tsawg dhau, qhov kev pheej hmoo ntawm nws cov nyhuv yuav tsis muaj zog. Yog li, qhov concentration ntawm 5% yog qhov kev nyab xeeb tshaj plaws thiab muaj txiaj ntsig zoo tshaj plaws ntawm qhov chaw tshem tawm, thiab qhov concentration ntawm 5% yog nrawm dua li vitamin C rau qhov chaw tshem tawm. Ntxiv mus, qhov persistence ntawm qhov chaw tshem tawm yog ruaj khov, thiab tsis muaj stimulating nyhuv ntawm daim tawv nqaij.

Tom qab nqus los ntawm daim tawv nqaij, arbutin yuav raug txo kom hydroquinone, uas tau ua rau qee tus neeg tsis ntseeg txog kev nyab xeeb ntawm arbutin thiab ntseeg tias arbutin tseem muaj lub sijhawm los tsim cov kev mob tshwm sim zoo ib yam li hydroquinone. Cov lus tshaj plaws tau hnov ​​​​tias "cov khoom siv tu uas muaj arbutin yuav tsum tsis txhob siv thaum nruab hnub, txwv tsis pub lawv yuav tsis ua kom tawv nqaij thiab ua kom tsaus."

Cov kev sim tau pom tias tsuas yog arbutin nrog qhov siab tshaj 7% yog qhov yuav ua rau photosensitive, yog li 7% yog qhov chaw nyab xeeb. Qhov sib ntxiv ntawm cov khoom xyaw hauv kev saib xyuas cov khoom muaj cov kev cai meej, thiab qhov siab tshaj plaws concentration txwv yog 7%. Nyob rau hauv no ntau yam concentration, arbutin tsis txaus los tsim photosensitivity, thiab nws tsis tsim nyog siv nws nyob rau hauv ib qho chaw tsaus. Absorbed los ntawm daim tawv nqaij thiab decomposed los ntawm lub teeb, nws yuav raug txo kom hydroquinone, ua ib tug whitening nyhuv.