Raws li qhov kev thov rau kev tiv thaiv lub hnub zoo txuas ntxiv mus, kev lag luam tshuaj pleev ib ce tau pom qhov kev hloov pauv zoo tshaj plaws hauv cov khoom xyaw uas siv tshuaj pleev thaiv hnub.Tsab ntawv xov xwm no tshawb txog kev taug kev ntawm cov khoom lag luam nce qib hauv tshuaj pleev thaiv hnub, qhia txog kev hloov pauv ntawm cov khoom tiv thaiv hnub ci niaj hnub.
Cov khoom xyaw thaum ntxov:
Nyob rau theem pib ntawm cov tshuaj pleev thaiv hnub, cov khoom xyaw ntuj xws li cov nroj tsuag rho tawm, cov zaub mov, thiab cov roj tau nquag siv los muab kev tiv thaiv hnub ci tsawg.Thaum cov khoom xyaw no muaj qee theem ntawm UV hluav taws xob thaiv, lawv cov kev ua tau zoo yog me me thiab tsis muaj qhov xav tau ntev ntev.
Taw qhia ntawm Organic Lim:
Kev tawg ntawm cov tshuaj pleev thaiv hnub tuaj nrog kev qhia txog cov lim dej organic, tseem hu ua UV absorbers.Nyob rau hauv nruab nrab-20th caug xyoo, cov kws tshawb fawb tau pib tshawb nrhiav cov organic tebchaw uas muaj peev xwm nqus tau UV hluav taws xob.Benzyl salicylate tau tshwm sim los ua tus pioneer hauv daim teb no, muab kev tiv thaiv UV nruab nrab.Txawm li cas los xij, kev tshawb fawb ntxiv yog tsim nyog los txhim kho nws txoj kev ua tau zoo.
Kev nce qib hauv kev tiv thaiv UVB:
Qhov kev tshawb pom ntawm para-aminobenzoic acid (PABA) nyob rau xyoo 1940 tau ua lub cim tseem ceeb hauv kev tiv thaiv hnub ci.PABA tau dhau los ua cov khoom tseem ceeb hauv cov tshuaj pleev thaiv hnub, zoo nqus UVB rays lub luag haujlwm rau kev tshav ntuj.Txawm hais tias nws muaj txiaj ntsig zoo, PABA muaj kev txwv, xws li cov tawv nqaij ua xua thiab ua xua, ua rau xav tau lwm cov khoom xyaw.
Kev Tiv Thaiv Broad-Spectrum:
Raws li kev paub txog kev tshawb fawb nthuav dav, kev tsom mus rau kev tsim cov khoom xyaw uas tuaj yeem tiv thaiv ob qho tib si UVB thiab UVA rays.Hauv xyoo 1980s, avobenzone tau tshwm sim los ua qhov zoo ntawm UVA lim, ntxiv rau UVB tiv thaiv uas twb muaj lawm los ntawm PABA-raws li tshuaj pleev thaiv hnub.Txawm li cas los xij, avobenzone kev ruaj ntseg nyob rau hauv tshav ntuj yog ib qho kev sib tw, ua rau muaj kev hloov tshiab ntxiv.
Photostability thiab Enhanced UVA Tiv Thaiv:
Txhawm rau hais txog qhov tsis ruaj khov ntawm cov ntxaij lim dej UVA thaum ntxov, cov kws tshawb fawb tau tsom mus rau kev txhim kho cov duab zoo nkauj thiab kev tiv thaiv dav dav.Cov khoom xyaw xws li octocrylene thiab bemotrizinol tau tsim, muab kev ruaj ntseg zoo dua thiab tiv thaiv UVA zoo dua.Cov kev nce qib no tau txhim kho qhov ua tau zoo thiab kev ntseeg siab ntawm cov tshuaj pleev thaiv hnub.
Organic UVA lim:
Nyob rau hauv xyoo tas los no, organic UVA cov ntxaij lim dej tau txais txiaj ntsig vim lawv qhov tshwj xeeb UVA tiv thaiv thiab txhim kho kev ruaj ntseg.Cov tshuaj xws li Mexoryl SX, Mexoryl XL, thiab Tinosorb S tau hloov kho cov tshuaj pleev thaiv hnub, muab kev tiv thaiv UVA zoo.Cov khoom xyaw no tau dhau los ua ib qho tseem ceeb rau niaj hnub kev tiv thaiv hnub ci formulations.
Innovative Formulation Techniques:
Nrog rau kev nce qib ntawm cov khoom xyaw, cov txheej txheem tsim kho tshiab tau ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua haujlwm ntawm cov tshuaj pleev thaiv hnub.Nanotechnology tau pav txoj hauv kev rau micronized hais, muab pob tshab npog thiab txhim kho UV nqus.Encapsulation thev naus laus zis kuj tau ua haujlwm los txhim kho kev ruaj ntseg thiab txhim kho cov khoom xa tuaj, ua kom muaj txiaj ntsig siab tshaj plaws.
Regulatory Considerations:
Nrog rau kev nkag siab loj zuj zus ntawm cov khoom xyaw tshuaj pleev thaiv hnub cuam tshuam rau tib neeg kev noj qab haus huv thiab ib puag ncig, lub koom haum tswj hwm tau siv cov lus qhia thiab kev txwv.Cov khoom xyaw xws li oxybenzone thiab octinoxate, paub txog lawv cov kev cuam tshuam hauv zej zog, tau ua rau kev lag luam los tsim lwm txoj kev xaiv, ua ntej kev nyab xeeb thiab kev ruaj ntseg.
Xaus:
Cov evolution ntawm cov khoom xyaw hauv tshuaj pleev thaiv hnub tau hloov pauv lub hnub tiv thaiv hauv kev lag luam tshuaj pleev ib ce.Los ntawm cov ntxaij lim dej thaum ntxov mus rau kev txhim kho ntawm kev tiv thaiv UVA siab heev thiab cov txheej txheem tsim tshiab, kev lag luam tau ua qhov tseem ceeb.Kev tshawb fawb txuas ntxiv thiab kev txhim kho yuav ua rau muaj kev nyab xeeb dua, siv tau zoo dua, thiab cov khoom siv tshuaj tiv thaiv ib puag ncig, ua kom pom kev tiv thaiv hnub ci rau cov neeg siv khoom.
Post lub sij hawm: Mar-20-2024