Puas siv tau cov tshuaj dawb thiab tshuaj pleev thaiv hnub ua ke

Tshuaj dawbthiabtshuaj pleev thaiv hnubTsis yog tsuas yog siv ua ke xwb, tab sis kuj tseem muab ob qho ua ke yog ib txoj kev tshawb fawb txog kev saib xyuas tawv nqaij kom ua tiav cov tawv nqaij dawb thiab ci ntsa iab. Lub ntsiab lus tseem ceeb ntawm cov tshuaj dawb yog nyob rau hauv nws cov kev saib xyuas tawv nqaij tob. Cov khoom xyaw nquag uas nws muaj, xws li nicotinamide, vitamin C, thiab arbutin, tuaj yeem tawm tsam melanin los ntawm ntau qhov ntev. Nicotinamide tuaj yeem tiv thaiv kev hloov pauv ntawm melanin mus rau ntawm daim tawv nqaij. Vitamin C muaj cov khoom antioxidant thiab tuaj yeem txo cov melanin uas twb tau tsim lawm. Arbutin, ntawm qhov tod tes, txo cov melanin tsim los ntawm cov hauv paus hniav los ntawm kev txwv tsis pub ua haujlwm ntawm tyrosinase. Txawm li cas los xij, cov tshuaj dawb feem ntau tsom mus rau cov teeb meem pigmentation uas twb muaj lawm lossis muaj peev xwm thiab poob rau hauv theem "kho thiab ua raws li".
Nyob rau hauv qhov sib piv, tshuaj pleev thaiv hnub yog lub luag haujlwm tseem ceeb ntawm "kev tiv thaiv pem hauv ntej". Txawm hais tias nws vam khom cov tshuaj pleev thaiv hnub lub cev xws li zinc oxide thiab titanium dioxide los ua haujlwm los ntawm kev cuam tshuam cov teeb ultraviolet, lossis cov tshuaj pleev thaiv hnub tshuaj xws li oxicillin thiab avobenzine los nqus cov teeb ultraviolet thiab tiv thaiv lawv kom tsis txhob ua rau daim tawv nqaij puas tsuaj, lub luag haujlwm ntawm tshuaj pleev thaiv hnub yog nyob rau hauv kev tiv thaiv cov teeb ultraviolet los ntawm kev nkag mus. Nws yuav tsum paub tias cov teeb ultraviolet tsis yog tsuas yog tus ua rau daim tawv nqaij tanning thiab kub hnyiab, tab sis kuj yog ib qho tseem ceeb ua rau daim tawv nqaij laus sai dua. Yog tias tsuas yog siv cov tshuaj dawb thaum tsis quav ntsej txog kev tiv thaiv hnub, txawm tias cov tshuaj dawb siv zog los ua kom melanin zom, qhov kev txhawb nqa tas li ntawm cov teeb ultraviolet yuav ua rau melanin tsim tas li, thiab cov nyhuv dawb yuav raug txo qis heev.

Thaum siv ua ke, ob yam khoom no tuaj yeem tsim kom muaj kev dawb huv ntawm "kev tiv thaiv + kev kho", ua kom sib haum xeeb thiab txhim kho cov txiaj ntsig ntawm kev saib xyuas daim tawv nqaij. Thaum siv tiag tiag, nws yog ib qho tsim nyog yuav tsum ua raws li qhov raugkev saib xyuas tawv nqaijKev ua raws li qhov yuav tsum tau ua: Ua ntej, ntxuav lub ntsej muag thiab ntxuav daim tawv nqaij, tom qab ntawd siv toner rau kev ua kom noo noo, thiab tom qab ntawd siv 1-2 lub twj tso kua mis dawb, muab nws sib npaug rau ntawm lub ntsej muag thiab maj mam zaws kom txog thaum nqus tau, cia cov khoom xyaw nquag nkag mus tob rau hauv daim tawv nqaij thiab ua rau lawv cov txiaj ntsig. Tom qab ntawd, siv tshuaj pleev lossis tshuaj pleev kom daim tawv nqaij noo noo zoo, tsim cov dej thaiv rau daim tawv nqaij kom tiv thaiv cov tshuaj pleev thaiv hnub tom qab ntawd kom tsis txhob nqus cov dej noo ntawm daim tawv nqaij. Thaum kawg, siv tshuaj pleev thaiv hnub txog qhov loj me ntawm ib lub npib yuan (kwv yees li 1g) thiab muab nws sib npaug rau cov chaw raug tshav xws li lub ntsej muag thiab caj dab los tsim cov zaj duab xis tiv thaiv.
Thaum lub sijhawm siv, tseem muaj qee cov ntsiab lus uas tsis tuaj yeem tsis quav ntsej. Hais txog kev sib xyaw ua ke ntawm cov khoom xyaw, yog tias cov tshuaj dawb muaj cov vitamin C ntau, nws yuav tsum tsis txhob siv tib lub sijhawm nrog cov tshuaj pleev thaiv hnub uas muaj zinc oxide, vim tias cov kua qaub thiab alkali yuav ua rau ib leeg tsis sib haum, cuam tshuam rau qhov cuam tshuam ntawm kev tiv thaiv hnub. Nws raug pom zoo kom siv lawv cais txhua 5 txog 10 feeb. Cov tshuaj dawb uas muaj retinol tuaj yeem ua rau daim tawv nqaij rhiab heev rau cov teeb ultraviolet. Nws yog qhov tsim nyog los xaiv cov tshuaj pleev thaiv hnub SPF siab nrog SPF tus nqi ntawm ≥30 thiab PA +++, thiab nws yog ib qho tseem ceeb kom rov thov dua txhua ob teev. Cov tawv nqaij sib txawv kuj yuav tsum xaiv cov khoom tsim nyog. Cov tawv nqaij qhuav yog qhov tsim nyog rau cov tshuaj pleev thaiv hnub kom noo noo thiab cov tshuaj pleev thaiv hnub kom noo noo, thaum cov tawv nqaij oily yuav tsum xaiv cov khoom uas muaj cov qauv sib dua kom tiv thaiv cov tawv nqaij kom tsis txhob nplaum thiab txhaws qhov hws.
Tsuav koj ua tau raws li cov ntsiab lus tseem ceeb no thiab siv cov tshuaj dawb thiab tshuaj pleev thaiv hnub ua ke kom tsim nyog, koj tuaj yeem siv tag nrho cov txiaj ntsig ntawm ob qho tib si, cia koj cov tawv nqaij maj mam dawb thiab ci thaum tiv taus kev puas tsuaj ntawm cov teeb ultraviolet, thiab ua tiav cov txiaj ntsig dawb zoo tagnrho.