lanolin yog dab tsi? Lanolin yog cov khoom lag luam uas tau txais los ntawm kev ntxuav cov ntaub so ntswg ntxhib, uas tau muab rho tawm thiab ua tiav los tsim cov lanolin refined, tseem hu ua yaj cov quav ciab. Nws yog txuas nrog cov ntaub plaub ntawm cov kua roj, refining thiab refining rau lub yellowish los yog brownish-daj ointment, viscous thiab slippery, lub ntsiab Cheebtsam yog sterols, fatty alcohols thiab triterpene alcohols thiab txog tib yam fatty acids generated. ester, thiab ib qho me me ntawm cov rog dawb thiab hydrocarbons.
Zoo ib yam li cov tib neeg sebum, lanolin thiab nws cov derivatives tau siv dav hauv cov tshuaj pleev ib ce thiab tshuaj pleev ib ce. Lanolin tuaj yeem ua rau hauv lanolin refined thiab ntau yam lanolin derivatives los ntawm ntau yam txheej txheem xws li fractionation, saponification, acetylation thiab ethoxylation.
Anhydrous lanolin yog ib yam khoom siv dawb huv tau los ntawm kev ntxuav, decolouring thiab deodorizing yaj cov ntaub plaub. Cov dej cov ntsiab lus ntawm lanolin tsis ntau tshaj 0.25% (feem ntau), thiab tus nqi ntawm cov tshuaj tua kab mob tuaj yeem nce mus txog 0.02% (feem ntau); European Union Pharmacopoeia 2002 qhia meej tias butylated hydroxytoluene (BHT), uas tsawg dua 200mg / kg, tuaj yeem muab ntxiv ua antioxidant. Anhydrous lanolin yog lub teeb daj, greasy zoo li cov khoom siv nrog cov ntxhiab tsw me ntsis. Melted lanolin yog pob tshab los yog yuav luag pob tshab kua daj. Nws yog yooj yim soluble nyob rau hauv benzene, chloroform, ether, thiab lwm yam., insoluble nyob rau hauv dej, yog hais tias tov nrog dej, nws muaj peev xwm maj mam nqus dej sib npaug rau 2 zaug nws tus kheej qhov hnyav yam tsis muaj kev sib cais.
Lanolin yog dav siv nyob rau hauv tshuaj pleev ib ce thiab tshuaj pleev ib ce. Lanolin tuaj yeem siv los ua cov khoom siv hydrophobic rau kev npaj cov dej-hauv-roj cream thiab tshuaj pleev. Thaum sib xyaw nrog cov roj zaub los yog roj av jelly, nws tsim cov nyhuv emollient thiab nkag mus rau ntawm daim tawv nqaij, yog li txhawb kev nqus tshuaj. Lanolin tsis cais los ntawm li ob zaug nws cov dej thiab qhov tshwm sim emulsion tsis raug rau rancidity thaum khaws cia.
Cov nyhuv emulsifying ntawm lanolin feem ntau yog vim muaj zog emulsifying muaj peev xwm ntawm α- thiab β-diol nws muaj, ntxiv rau cov roj cholesterol esters thiab ntau dua cawv uas ua rau cov nyhuv emulsifying. Lanolin lubricates thiab softens ntawm daim tawv nqaij, tsub kom cov tawv nqaij saum npoo av cov ntsiab lus, thiab ua raws li ib tug moisturizer los ntawm thaiv qhov poob ntawm epidermal dej hloov.
Lanolin thiab non-polar hydrocarbons, xws li cov ntxhia roj thiab roj av jelly yog qhov sib txawv, hydrocarbon emollients tsis muaj peev xwm emulsifying, yuav luag tsis nqus los ntawm stratum corneum, nruj nreem los ntawm kev nqus thiab khaws cov nyhuv ntawm emolliency thiab moisturizing. Feem ntau siv nyob rau hauv txhua yam ntawm cov tshuaj pleev ib ce, tshuaj pleev tshuaj pleev, tshuaj pleev thaiv hnub thiab cov khoom tu plaub hau, kuj siv nyob rau hauv daim di ncauj tshuaj pleev ib ce thiab xab npum.
Ultra refined lanolin muaj kev nyab xeeb thiab feem ntau suav hais tias yog cov khoom tsis muaj tshuaj lom thiab tsis ua rau khaus. Qhov tshwm sim ntawm kev tsis haum tshuaj lanolin hauv cov pej xeem yog kwv yees li ntawm 5%.
Lanolin kuj muaj cov nyhuv softening ntawm daim tawv nqaij. Nws maj mam nourishes ntawm daim tawv nqaij saum npoo, sib npaug roj ntau lawm, thiab txhim kho daim tawv nqaij elasticity thiab radiance.
Lanolin kuj tseem muaj qee qhov kev kho kom zoo. Thaum peb cov tawv nqaij raug txhawb los yog puas los ntawm ib puag ncig sab nraud, lanolin tuaj yeem txhawb kev tsim kho dua tshiab thiab kho cov hlwb ntawm daim tawv nqaij thiab ua kom rov qab los ntawm qhov chaw puas. Yog li ntawd, rau qee cov neeg uas muaj teeb meem ntawm daim tawv nqaij me, xws li tawv nqaij qhuav, liab, tev, thiab lwm yam, kev siv cov khoom tu tawv nqaij uas muaj lanolin tuaj yeem ua lub luag haujlwm hauv kev kho thiab kho.
Lanolin kuj muaj qee yam antioxidant nyhuv. Nws yog nplua nuj nyob rau hauv cov vitamins thiab antioxidants uas muaj peev xwm neutralize dawb radicals thiab qeeb cov txheej txheem ntawm daim tawv nqaij laus.
Raws li cov khoom siv ntuj tsim, lanolin muaj ntau yam cuam tshuam thiab ua haujlwm hauv cov khoom tu tawv nqaij. Nws zoo moisturizes thiab nourishes, softens ntawm daim tawv nqaij, kho qhov chaw puas thiab fights oxidation. Yog tias koj xav kom cov tawv nqaij moisturized, nourished, mos thiab du, xaiv cov khoom tu tawv nqaij uas muaj lanolin. Kev siv cov khoom tu tawv nqaij ntev ntev uas muaj cov khoom xyaw lanolin tuaj yeem ua rau koj cov tawv nqaij ua rau cov hluas thiab ruaj khov, thiab tiv thaiv kev loj hlob ntawm cov kab zoo thiab wrinkles.
Post lub sij hawm: Jun-16-2024
