Facial Cleanser-tseem hu ua cov kua mis huv los yog lub ntsej muag ntxuav- poob rau hauv qeb ntawm cov khoom ntxuav kom zoo nkauj.
Nws yog siv los tshem tawm cov impurities ntawm lub ntsej muag ntawm daim tawv nqaij, ua rau cov tawv nqaij zoo nkauj thiab xis nyob. Los ntawm kev pab tswj cov tawv nqaij ib txwm ua haujlwm ntawm lub cev, nws feem ntau yog thawj kauj ruam hauv kev tu tawv nqaij.
Thaum lub ntsej muag ntxuav lub ntsej muag yog siv los ntxuav cov tawv nqaij, cov khoom ntawm kev ua kom huv (piv txwv li, substrate) yog tib neeg daim tawv nqaij nws tus kheej. Cov impurities adhering rau ntawm daim tawv nqaij feem ntau muaj cov sebum, fragments ntawm lub stratum corneum (tuag ntawm daim tawv nqaij hlwb), thiab lawv oxidized puas khoom; Tsis tas li ntawd, cov impurities no tej zaum yuav yog cov tshuaj pleev ib ce uas tau ua khi rau ntawm daim tawv nqaij. Cov khoom seem metabolic no yog qhov tsis ruaj khov thiab tuaj yeem cuam tshuam nrog oxygen atmospheric lossis nrog cov khoom tso tawm. Thaum raug tshav ntuj-los yog nyob rau hauv muaj cov kab mob ntawm daim tawv nqaij- ntau yam physicochemical thiab biochemical cov tshuaj tiv thaiv tej zaum yuav tshwm sim, muaj peev xwm tsim cov tshuaj uas yuav ua mob rau daim tawv nqaij. Yog li ntawd, txawm tias rau cov tib neeg uas muaj daim tawv nqaij noj qab haus huv, kev huv huv tseem yog ib qho tseem ceeb ntawm cov txheej txheem kev tu tawv nqaij. Tsis tas li ntawd, rau cov neeg uas muaj cov tawv nqaij rhiab lossis tsis yooj yim, cov yam ntxwv tshwj xeeb ntawm lawv cov tawv nqaij yuav tsum tau tshwj xeeb ntxuav thiab tu. Thaum hais txog cov teeb meem ntawm daim tawv nqaij, nws yog ib qho tseem ceeb heev uas yuav tsum tau ua qhov tseem ceeb ntawm kev ua siab mos siab muag thiab kev nyab xeeb ntawm lub ntsej muag cleanser.
Cov tshuaj ntxuav ntsej muag yog cais raws li cov khoom siv ntxuav lub ntsej muag. Thaum lub sij hawm ntxuav, lub hom phiaj ntawm cov tshuaj ntxuav tes muaj xws li endogenous impurities -xws li sebum, hws, thiab exfoliated stratum corneum cells secreted los ntawm lub ntsej muag ntawm daim tawv nqaij -nrog rau exogenous impurities los ntawm sab nraud ib puag ncig, xws li plua plav, ntau yam kab mob, thiab tshuaj pleev ib ce. Cov khoom seem metabolic no tsis ruaj khov thiab ua rau muaj kev cuam tshuam nrog oxygen atmospheric lossis nrog cov khoom tso tawm. Thaum raug tshav ntuj-los yog nyob rau hauv muaj cov kab mob ntawm daim tawv nqaij- ntau yam physicochemical thiab biochemical cov tshuaj tiv thaiv tej zaum yuav tshwm sim, muaj peev xwm tsim irritants los yog tej yam uas yuav ua rau mob rau daim tawv nqaij.
Yog li ntawd, txawm tias rau cov tib neeg uas muaj daim tawv nqaij noj qab haus huv, kev ntxuav tseem yog ib qho tseem ceeb ntawm cov txheej txheem tu tawv nqaij.
Tsis tas li ntawd, cov neeg siv khoom yuav tsum xaiv cov khoom ntxuav kom tsim nyog raws li lawv hom tawv nqaij. Rau cov neeg uas muaj cov tawv nqaij rhiab heev los yog cov tawv nqaij tawv, nws yog ib qho tseem ceeb uas yuav tsum tau ua qhov tseem ceeb ntawm cov khoom muag thiab kev nyab xeeb, vim tias cov tawv nqaij no yuav tsum tau ntxuav tshwj xeeb thiab tu.
Cov tshuaj ntxuav lub ntsej muag tshem tawm cov impurities ntawm daim tawv nqaij los ntawm kev ua ntawm surfactants-tshwj xeeb ntawm kev ntub dej, emulsification, lossis solubilization txheej txheem. Tsis tas li ntawd, txhawm rau tiv thaiv kom tsis txhob muaj roj ntau dhau ntawm cov roj ntsha thiab ua kom cov tawv nqaij lubrication, qhov tsim nyog ntawm emollients thiab humectants feem ntau yog ntxiv rau cov qauv; Qhov no ua kom zoo ntub dej thaum tawm ntawm daim tawv nqaij zoo li mos thiab supple.
Cov khoom feem ntau pom nyob rau hauv lub ntsej muag cleansers yog raws li nram no:
(1) Surfactants (Cleansing Agents)
Feem ntau ua haujlwm ntawm kev ntxuav thiab foaming.
Soap-raws li tshuab: Muaj cov roj fatty acids ntau dua thiab cov tshuaj alkaline.
Lwm cov surfactants: Alkyl sulfates, N-acyl methyl taurates, alkyl glucosides, POE alkyl ethers, disodium cocoamphodiacetate, thiab lwm yam.
(2) Humectants
Glycerin, 1,3-butylene glycol, dipropylene glycol, propylene glycol, sorbitol, thiab lwm yam.
(3) Emollients (Lipid Replenishers)
Fatty acids, cog roj (cov txiv maj phaub roj, jojoba roj, txiv roj roj, thiab lwm yam), ntau dua cawv, lanolin derivatives, thiab lwm yam.; Cov no feem ntau pab txhawm rau ntxiv cov lipids thiab muab lubrication.
(4) Lwm yam Cheebtsam
Dej- cov khoom siv polymers, cov tshuaj tua kab mob, tshuaj tua kab mob, tshuaj tua kab mob, cov khoom xyaw nquag, cov tshuaj tsw qab, thiab lwm yam. Qee cov tshuaj ntxuav lub ntsej muag kuj muaj cov granules exfoliating.
