Wopanga chozizwitsa choyera - phenethyl resorcinol

Paulendo wautali wofunafuna khungu loyera, anthu ambiri okongola - okonda nthawi zonse akufufuza zinsinsi zoyera bwino komanso zotetezeka. Masiku ano, nyenyezi yowala m'munda wa kuyera - phenylethyl resorcinol, yokhala ndi mphamvu zake zodabwitsa, ikutsegula ulendo wodabwitsa woyeretsa khungu kwa ife.
Melanin ndiye "Nemesis wamphamvu" wa melanin. Melanin ndiye "woyambitsa" khungu kuti lide ndi kupanga mawanga, ndipo tyrosinase ndiye "woyendetsa kumbuyo kwa zochitika" pakupanga melanin. Phenylethylresorption ili ndi kapangidwe kapadera ka molekyulu, mofanana ndi "wonyenga" wophunzitsidwa bwino, wokhoza kutsanzira bwino gawo la tyrosinase ndikugwira mwanzeru malo ogwirira ntchito a enzyme, motero amaletsa bwino ntchito ya tyrosinase. Mwanjira imeneyi, njira yopangira melanin imatsekedwa bwino, zomwe zimachotsa kuthekera kwa mdima pakhungu. Deta yofufuza zasayansi yatsimikiziranso mphamvu zamphamvu za phenethyl resorcinol: mphamvu yake yoletsa tyrosinase imaposa kwambiri ya zosakaniza zachikhalidwe zoyeretsera, zomwe zimakhala nthawi 22 kuposa kojic acid komanso nthawi zoposa 100 kuposa arbutin!
"Mtetezi Woteteza O ...
Yotetezeka komanso yofatsa, "chisankho choganiza bwino" pakhungu lofewa. Kwa ogula ambiri, chitetezo cha zosakaniza zoyera ndichofunika kwambiri. Phenethyl resorquinone yaphatikizidwa mu "Catalogue of Used Cosmetic Raw Materials" ku China. Ikagwiritsidwa ntchito mkati mwa kuchuluka komwe kwatchulidwa (nthawi zambiri 0.2%-0.5%), ndi yotetezeka kwambiri. Kafukufuku wambiri wa akatswiri awonetsa kuti phenethyl resorcinol ili ndi kukwiya kochepa pakhungu, ndipo ngakhale khungu lofewa komanso lofewa kwambiri lingagwiritse ntchito mwamtendere. Zachidziwikire, kuti zitsimikizire kuti chilichonse ndi chotetezeka, anzanu omwe ali ndi khungu lofewa amalangizidwa kuti ayesere mankhwala omwe ali ndi chosakaniza ichi pamalo apafupi akhungu poyamba akagwiritsa ntchito koyamba.
Kutsimikizira kwa sayansi kukuwonetsa kuyera kodabwitsa. Zotsatira za mayeso okhwima azachipatala pa akazi aku Asia ndizodabwitsa: patatha milungu 8 yotsatizana pogwiritsa ntchito mankhwala oyeretsa okhala ndi 0.5% phenylethyl resorcinol, okwana 91% a anthu omwe adapezeka adachepetsa kwambiri malo a mawanga a pigment, ndipo kuwala kwa khungu kudakwera ndi 17.3%. Deta iyi ikuwonetsa bwino momwe phenylethyl resorcinol imagwirira ntchito bwino pa kuyera ndi kunyezimira. Kaya mukuvutika ndi mawanga a dzuwa kapena melasma, kapena mukufuna kukonza khungu losawoneka bwino komanso losafanana, phenylethyl resorcinol idzakuthandizani kwambiri kukwaniritsa maloto anu oyeretsa khungu. Panjira yoyera, phenylethyl resorcinol mosakayikira ndiye mnzanu wodalirika kwambiri. Kusankha zinthu zokhala ndi phenylethyl resorcinol kumatanthauza kusankha kuyika mphamvu yamphamvu kuti khungu libwezeretsedwe ndi kuyera. Tiyeni tigwirizane kuti tisiyane ndi kuyera, kulandira kuwala, ndikuwala molimba mtima!