Peb lub ntsiab ntawm cov tawv nqaij laus

Tus naj npawb ib qho hauv kev laus tawv nqaij:

UV Hluav Taws Xob, Kev Ua Si

70% ntawm daim tawv nqaij laus keeb kwm los ntawm kev yees duab

UV Rays cuam tshuam rau kev collagen hauv peb lub cev, uas ua rau cov tawv nqaij saib cov hluas. Yog tias Collagen Shrinks, daim tawv nqaij yuav tau txo qis elasticity, sagging, hyperpigmentation, xim teeb meem thiab lwm yam teeb meem tawv nqaij.

Lub hnub lub hnub dav spectrum tau muab faib ua UVA thiab UVB. UVB Rays muaj cov wavelengthpength thiab tsuas tuaj yeem hlawv txheej saum toj ntawm peb cov tawv nqaij, tsis tuaj yeem nkag mus rau hauv daim tawv; Txawm li cas los xij, UVA cov duab hluav taws xob tau ntev ntev thiab tuaj yeem nkag mus rau hauv daim tawv nqaij, thaum kawg tsis ris cov kab collagen thiab ua rau kev txhim kho wrinkles.

Hauv cov ntsiab lus yooj yim, UVA ua rau kev laus, UVB ua rau kub, thiab collagen synthes ua si, coj mus rau cov kev sib hloov ntawm tes, kev laus ntawm tes, thiab muaj mob. Yog li, UV nyob txhua qhov chaw, txawm hais tias nws yog hnub ci lossis pos huab, koj yuav tsum tau ua txoj haujlwm ntawm lub hnub.

Qhov thib ob tseem ceeb tshaj plaws hauv kev laus ntawm daim tawv

Oxidative dawb radicals

Cov lus tseem ceeb rau dawb radicals yog 'oxygen'. Peb ua pa txog 98 txog 99 feem pua ​​ntawm cov pa oxygen txhua lub sijhawm peb ua pa; Nws tau siv los hlawv cov zaub mov uas peb noj thiab tso cov lwg me me rau peb cov hlwb mus rau metabolise, thiab nws tso tawm ntau lub zog ua kom peb cov leeg ua haujlwm.

Tab sis tej zaum 1% lossis 2% ntawm cov pa oxygen xaiv qhov sib txawv thiab cov pa phom no, feem ntau hu ua dawb radicals, uas feem ntau ua rau peb lub hlwb. Sij hawm dhau mus, qhov kev puas tsuaj no sib npaug sijhawm.

Cov pom feem ntau yog cov cim ntawm kev laus uas tshwm rau ntawm daim tawv nqaij. Peb lub cev muaj kev tiv thaiv kev tiv thaiv uas kho qhov kev puas tsuaj rau peb cov hlwb los ntawm kev dawb radicals, tab sis thaum dawb radicals, tab sis thaum dawb radicals, tab sis thaum dawb radicals, tab sis thaum lub hlwb muaj kuab heev tuaj yeem kho tau lawv, daim tawv nqaij muaj hnub nyoog.

Daim duab saum toj no yog daim tawv nqaij tiag tiag ntawm peb lub cev, koj tuaj yeem pom meej meej dua, thiab cov phev ntawm cov khoom noj collagen, thiab lub hlwb yog qhov chaw uas peb tsim collagen yog hu ua fibragen yog hu ua fibraglasts, uas yog collagen ua tshuab.

Fibroblasts hauv nruab nrab ntawm daim duab yog fibroblasts, thiab kab laug sab Web nyob ib puag ncig lawv yog collagen. Collagen yog tsim los ntawm fibrigblasts, thiab cov tawv nqaij tawv nqaij yog ib qho peb-seem thiab nruj zog powerfaging fibers kom muab cov tawv nqaij hluas tag nrho thiab kev ntxhib los mos.

Thiab cov tawv nqaij qub, fibroblasts thiab collagen txuas nruab nrab ntawm kev ua kom laus ntawm cov laus, cov tawv nqaij kuj tseem yuav ua li cas peb daws cov oxidation ntawm daim tawv nqaij tau txais?

Ntxiv rau kom them nyiaj ntau rau Sunscreen, peb tuaj yeem siv qee tus nrog vitamin A, Vitamin E, Ferulic acid, resveratrol thiab lwm yam khoom xyaw ntawm cov khoom siv tawv nqaij; Feem ntau kuj tuaj yeem noj ntau cov txiv hmab txiv ntoo thiab zaub ci, xws li txiv lws suav, txiv lws suav, txiv lws suav muaj nplua nuj nyob hauv Lycopene.

Nws tuaj yeem nqus cov oxygen zoo thiab tiv thaiv oxidative kev ntxhov siab, tom qab cov nqaij daim tawv, yog li cov tawv nqaij tawv nqaij tuaj yeem tiv thaiv tus kheej , cov txiv hmab txiv ntoo thiab zaub muaj peev xwm txhawb nqa cell tiv taus kev laus.

Qhov thib peb tseem ceeb tshaj plaws hauv kev laus rau kev laus

Daim tawv nqaij glycation

Glycation, nyob rau hauv cov ntsiab lus tshaj lij, yog hu ua tsis-enzymatic glycosylation cov tshuaj tiv thaiv lossis melad rauv. Lub hauv paus ntsiab lus yog tias kev txo cov piam thaj khi rau cov protein thaum tsis muaj cov enzymes; Txo cov suab thaj yog rov qab muaj protein ntau, thiab cov protein ntau, thiab cov tshuaj tiv thaiv dhau mus, ua rau cov khoom noj tas mus li, thiab cov khoom noj tas li, lossis cov hnub nyoog luv.

Cov muaj hnub nyoog yog ib pab pawg ntawm cov nyom, daj-brownish, txuam nrog cov roj ntsha uas tsis ntshai kev ua txhaum, thiab yog ib qho ntawm cov kev ua txhaum loj ntawm tib neeg kev laus. Raws li peb muaj hnub nyoog, muaj hnub nyoog ntxiv hauv lub cev, ua rau muaj kev puas tsuaj ntawm cov hlab ntsha hauv cov hlab ntsha, thiab elastin fibers nyob rau hauv lub dermis ua rau kev laus tawv nqaij. Kev laus tawv nqaij tshwm sim los ntawm glycation yog summarized nyob rau hauv ib kab lus: Qab zib rhuav tshem cov qauv muaj protein thiab tsis muaj txiaj ntsig ntawm collagen thiab elastic fibers nyob rau hauv lub dermis.