Moisturizing cream yog cov tshuaj pleev ib ce uas tsim los rau hydrate thiab nourish ntawm daim tawv nqaij. Nws raug cais raws li ib qho nruab nrab emulsified qab zib, feem ntau muaj cov roj - cov ntsiab lus theem ntawm 10% mus rau 70%. Cov qauv emulsion muaj xws li Roj-hauv- Dej (O/W), Dej-hauv- Roj (W/O), thiab Dej-hauv- roj-hauv- Dej (W/O/W) hom, nrog rau feem ntau hom O/W. Nws tus nqi pH feem ntau poob rau hauv thaj tsam ntawm 4.0 txog 6.5, ze ze mirroring lub ntuj acidity ntawm daim tawv nqaij. Cov khoom xyaw tseem ceeb muaj xws li emollients, humectants, thiab emulsifiers; cov khoom sib txawv ntawm cov khoom siv raw pub rau kev tsim cov khoom tsim kom tau raws li ntau yam kev xav tau tshwj xeeb. Los ntawm kev tsim cov occlusive, lubricating zaj duab xis rau ntawm daim tawv nqaij saum npoo, cov tshuaj nplaum no pab ncua kev ya raws thiab pab kho cov tawv nqaij lub ntuj thaiv kev ua haujlwm.
Cov khoom no yog tsim los ntawm cov roj sib txawv - mus rau - dej ratios kom haum rau ntau hom tawv nqaij: cov neeg uas muaj oily daim tawv nqaij raug qhia kom xaiv dej -raws li, sib sib zog nqus qauv; cov tawv nqaij qhuav tau txais txiaj ntsig los ntawm siab - roj- cov ntsiab lus, moisturizing ntau yam; thiab cov neeg uas muaj daim tawv nqaij ua ke tuaj yeem xaiv cov qauv sib npaug. Ua ntej thov, daim tawv nqaij yuav tsum tau ntxuav thiab toned; Massaging lub qab zib rau hauv daim tawv nqaij pab txhawb kev nqus, txawm hais tias daim ntawv thov ntau dhau yuav ua rau txhaws qhov pores. Qee cov formulations suav nrog ceramides-lipids ib txwm muaj nyob rau hauv cov epidermis- los ua kom cov tawv nqaij lipid matrix, yog li kho qhov teeb meem thiab txo cov tsos mob ntawm dryness thiab khaus. Raws li lawv cov kev npaj siv, cov tshuaj nplaum moisturizing yog categorized rau hauv hom xws li hnub cream, hmo ntuj cream, thiab tes cream; Hnub cream feem ntau yog qhov tseem ceeb rau kev tiv thaiv ib puag ncig thiab tiv thaiv ib puag ncig, thaum hmo ntuj cream tsom rau cov khoom noj khoom haus ntxiv.
Hauv paus, moisturizing cream yog tsim los ntawm emulsification ntawm cov roj thiab dej - cov khoom uas yuav tsis muaj immiscible - ua ke nrog ntau yam hydrating thiab nourishing cov khoom xyaw. Raws li qhov sib piv ntawm cov khoom siv no, cov tshuaj nplaum moisturizing tuaj yeem muab ntau yam txiaj ntsig tshaj li qhov yooj yim hydration thiab los tiv thaiv - kev laus, nrog rau kev tiv thaiv hnub ci, tawv nqaij ci, txo qis, thiab kho pob txuv.
Emollients pom nyob rau hauv cov kua nplaum moisturizing - xws li glycerin - muaj peev xwm nqus tau cov dej noo hauv huab cua hauv ntau ntau zaus lawv qhov hnyav. Thaum thov, lawv tsim cov txheej txheem tiv thaiv ntawm daim tawv nqaij saum npoo uas tiv thaiv cov evaporation ntawm noo noo los ntawm cov txheej txheem dermal.
Ntev- kav ntev, dej- hauv- cov qauv roj, tshwj xeeb tshaj yog, muab cov khoom zoo, zoo nkauj zoo nkauj uas sib haum nrog daim tawv nqaij; lawv tau yooj yim absorbed, kom cov tawv nqaij tseem hydrated thiab radiant thoob plaws hauv lub hnub. Kev tshawb fawb qhia tau hais tias emollients tuaj yeem ua tau zoo ntawm daim tawv nqaij lub ntuj barrier, tsim cov zaj duab xis lubricating rau ntawm qhov chaw uas ua raws li kev foob. Qhov kev txiav txim no ncua sij hawm epidermal ya raws poob, txo cov tawv nqaij ntau dhau ntawm cov cell proliferation thiab scaling, alleviates khaus los ntawm sab nraud irritants, thiab ntxiv dag zog thiab kho cov tawv nqaij barrier muaj nuj nqi. Tsis tas li ntawd, cov emollients no tseem tuaj yeem txhim kho daim tawv nqaij permeability, yog li ua kom yooj yim rau kev nqus ntawm lwm cov khoom siv tawv nqaij zoo. Thaum yuav ib lub moisturizer, nws yog ib qho tseem ceeb uas yuav tsum tau ua kom koj xaiv raws li koj qhov tshwj xeeb ntawm daim tawv nqaij. Cov tib neeg uas muaj cov tawv nqaij oily-tus yam ntxwv los ntawm kev ntxhib los mos thiab ntau ntau ntawm sebum ntau lawm- yuav tsum xaiv lub teeb yuag, dej- cov qauv raws li qhov tseem ceeb ntawm cov dej, ci, thiab pob txuv{11}} tawm tsam cov khoom. Rau cov neeg uas muaj cov tawv nqaij qhuav, cov khoom muaj peev xwm muab cov dej noo txaus thiab cov roj ntxiv yog qhov tsim nyog tshaj plaws. Cov poj niam uas muaj hnub nyoog nruab nrab thiab laus dua yuav tsum xaiv cov tshuaj pleev ib ce uas muaj kev tiv thaiv -wrinkle thiab tawv nqaij- cov txiaj ntsig ci ntsa iab, thiab uas muaj cov ntsiab lus lipid ntau dua. Tsis tas li ntawd, raws li cov tawv nqaij mob feem ntau hloov nrog lub caij, ib tug yuav tsum kho lawv cov khoom xaiv raws li; Piv txwv li, yog tias daim tawv nqaij nthuav tawm qhov tsis sib xws hauv cheeb tsam-xws li oily T-zone ua ke nrog lub puab tsaig qhuav- siv cov moisturizer sib npaug yuav yog qhov kev daws teeb meem zoo tshaj plaws. Feem ntau hais lus, nplua nuj, emollient hmo ntuj cream los yog hnub cream yog qhov zoo tshaj plaws rau cov tawv nqaij qhuav rau cov tawv nqaij qhuav heev, qhov sib zog, smoother, thiab ntau yam refreshing yog zoo dua rau cov tawv nqaij los yog oily.
