Ceramide ua li cas rau koj cov tawv nqaij?

Ceramidesyog ib qho ntawm cov khoom tseem ceeb uas ua rau cov tawv nqaij barrier. Raws li peb paub, daim tawv nqaij barrier feem ntau yog nyob rau hauv lub stratum corneum, txheej txheej ntawm lub epidermis. Cov qauv tseem ceeb ntawm cov txheej txheem no muaj cov lipid zaj duab xis, tsim los ntawm kev tso tawm ntawm sebum los ntawm cov qog sebaceous, hws, thiab cov khoom tawm los ntawm keratinocytes, uas ua ke tsim cov roj- raws li kev tiv thaiv ntawm daim tawv nqaij. Tshaj li stratum corneum hlwb, lipids ntawm cov hlwb feem ntau yog tsim los ntawm ceramides, suav txog kwv yees li 50% ntawm lawv cov muaj pes tsawg leeg. Yog hais tias daim tawv nqaij barrier raug cuam tshuam, cov ntaub so ntswg tej zaum yuav muaj deficiences los yog functional impairments. Cov khoom tsim los kho cov tawv nqaij barrier tag nrho cov muaj ceramides, uas yuav pab kho qhov barrier, yog li txo ntau yam sab nraud ntawm daim tawv nqaij, kab mob invasion, thiab dej ntau dhau. Yog li ntawd, ceramides kuj ua hauj lwm raws li ntuj moisturizing yam.

 

Hauv kev txhim kho cov qauv ntawm daim tawv nqaij barrier, ceramides yog qhov loj tshaj plaws. Dhau li ntawm ceramides, tseem muaj triglycerides, phospholipids, squalene, thiab cov roj cholesterol, tab sis ceramides yog cov ntau tshaj. Ntau cov khoom siv tawv nqaij niaj hnub no muaj cov khoom xyaw no, thiab qee cov khoom siv tawv nqaij txawv teb chaws txawm tias nws yog "ceramide," uas yog lus Askiv rau ceramides, zoo ib yam li thawj. Ceramides ua lub luag haujlwm hauv kev tiv thaiv thiab kho daim tawv nqaij barrier, moisturizing, thiab tiv thaiv -aging. Yog li, ceramides tam sim no yog ib qho tseem ceeb hauv kev tu tawv nqaij.

 

Raws li cov neeg muaj hnub nyoog thiab nkag mus rau lub hnub nyoog laus, cov ceramides hauv daim tawv nqaij maj mam txo. Cov tsos mob ntawm cov tsos mob txawv txav xws li cov tawv nqaij qhuav thiab ntxhib kuj tshwm sim los ntawm cov qib ceramide txo. Yog li ntawd, ntxiv ceramides yog ib txoj hauv kev zoo los tiv thaiv cov tawv nqaij txawv txav.

 

Ceramideyog tiam tshiab ntawm moisturizers tsim nyob rau hauv xyoo tas los. Nws yog ib qho dej -soluble lipid tshuaj uas muaj cov qauv zoo sib xws rau cov khoom uas ua rau lub stratum corneum ntawm daim tawv nqaij. Nws tuaj yeem nkag mus rau hauv daim tawv nqaij sai sai thiab ua ke nrog cov dej hauv stratum corneum los tsim cov qauv mesh uas kaw cov dej noo.

 

Cov txiaj ntsig zoo ntawm Ceramides:

 

1. Kev cuam tshuam

Raws li cov ntsiab lus lipid nyob rau hauv daim tawv nqaij txo, cov tawv nqaij barrier muaj nuj nqi txo. Kev tshawb fawb txog kev sib raug zoo ntawm epidermal barrier muaj nuj nqi thiab sphingolipid synthesis tau pom tias thaum daim tawv nqaij barrier muaj kev cuam tshuam, sphingolipid synthesis nce. Tom qab 24 teev, daim tawv nqaij barrier muaj nuj nqi rov qab mus rau qhov qub thiab sphingolipid synthesis kuj rov zoo li qub. Nws tuaj yeem pom tau tias ceramides ua lub luag haujlwm tseem ceeb hauv kev tswj cov tawv nqaij ua haujlwm.

2. Adhesive nyhuv

Ceramides yog txuas rau cov cell nto proteins los ntawm ester bonds, ua lub luag haujlwm hauv cell adhesion. Qhov kev sib raug zoo no yog hu ua "lipid cell protein" encapsulation. Cov txheej txheem ntawm flaking nyob rau hauv daim tawv nqaij qhuav tau kawm, thiab nws tau pom tias lub ntsiab ua rau ntawm daim tawv nqaij dryness yog txo nyob rau hauv cov ntsiab lus ceramide nyob rau hauv lub epidermal stratum corneum. Qib ntawm cov ntsiab lus ceramide ncaj qha cuam tshuam rau qib ntawm daim tawv nqaij qhuav. Kev siv cov ceramides tuaj yeem txhim kho qhov adhesion ntawm keratinocytes, txhim kho daim tawv nqaij qhuav, thiab txo cov tawv nqaij flaking.

3. Moisturizing nyhuv

Cov dej noo ntawm daim tawv nqaij suav txog li 18% txog 20% ​​ntawm lub cev hnyav. Cov ntsiab lus noo noo thiab elasticity ntawm daim tawv nqaij yog ze ze rau cov dej noo ntawm cov epidermis. Kev poob ntawm daim tawv nqaij ntau dhau tuaj yeem ua rau dryness thiab txawm tawg ntawm daim tawv nqaij. Ceramides muaj lub peev xwm los khi cov dej molecules thiab tswj cov tawv nqaij noo los ntawm kev tsim cov qauv network hauv stratum corneum. Yog li, ceramides muaj kev ua haujlwm ntawm kev tswj cov tawv nqaij noo.

4. Anti aging nyhuv

Thaum lub sij hawm kev laus ntawm daim tawv nqaij, lipid synthesis txo qis thiab cov ntsiab lus ntawm ceramides hauv stratum corneum txo. Kev siv cov ceramides tuaj yeem ua rau cov ntsiab lus ceramide hauv cov kab mob epidermal stratum corneum, uas tuaj yeem txhim kho cov tawv nqaij qhuav, flaking, roughness, thiab lwm yam mob; Lub caij no, ceramides tuaj yeem ua kom cov tuab ntawm epidermal stratum corneum, txhim kho cov tawv nqaij muaj peev xwm tuav tau, txo qis wrinkles, txhim kho daim tawv nqaij elasticity, thiab ncua kev laus ntawm daim tawv nqaij.