Salicylic Acid - katundu
Izi ndi zoyera za singano zoyera kapena ufa wa crystalline woyera; wopanda fungo kapena pafupifupi wopanda fungo; amadzimadzi njira amasonyeza acidic anachita. Izi zimasungunuka mosavuta mu ethanol kapena etha, zimasungunuka m'madzi otentha, zimasungunuka pang'ono mu trifluoromethane, zimasungunuka pang'ono m'madzi.
Chiyambi cha Salicylic Acid
Salicylic acid, yomwe imadziwikanso kuti salicylic acid, ndi ufa woyera wa crystalline, wopanda fungo, ndi kukoma kowawa pang'ono kenako ndi kukoma kowawa. Imapezeka mu khungwa la msondodzi, masamba a ngale yoyera ndi birch wokoma m'chilengedwe. Chemical formula C6H4(OH)(COOH), malo osungunuka 157-159 ℃, pang'onopang'ono amasintha mtundu pansi pa kuwala. Kachulukidwe wachibale ndi 1.44. Malo owira ndi pafupifupi 211°C/2.67kPa. Kutsika pansi pa 76 ° C. Pansi pa kuthamanga kwabwinobwino, imatha kuwola kukhala phenol ndi carbon dioxide potenthetsa mwachangu. Amasungunuka mu ethanol, ether, chloroform, benzene, acetone, turpentine, osasungunuka m'madzi. 1 g ya salicylic acid imatha kusungunuka mu 460ml yamadzi, 15ml yamadzi otentha, 2.7ml ya ethanol, 3ml ya acetone, 3ml ya ether, 42ml ya chloroform, 135ml ya benzene, 52ml ya turpentine 6ml ya 8ml ya turpentine ndi 8ml ya 8ml ya turpentine ether. Kuonjezera sodium mankwala, borax, etc. kuonjezera kusungunuka kwa salicylic acid m'madzi. PH ya aqueous salicylic acid solution ndi 2.4. Salicylic acid ndi ferric chloride amadzimadzi amatulutsa mtundu wapadera wofiirira.
Mwina simunamvepo za salicylic acid, koma muyenera kudziwa bwino za aspirin. Ndipotu, aspirin ndi yochokera ku salicylic acid. Kuwonjezera pa kupanga salicylic acid mu mankhwala ena, salicylic acid yachilengedwe imakhala ndi zakudya zambiri, monga zipatso zambiri, masamba, khofi, tiyi, mtedza, zonunkhira ndi uchi. Ma salicylic acid awa ndi zomera A njira zodzitetezera ku tizirombo, bowa ndi matenda.Komabe, salicylic acid, kaya ndi chilengedwe kapena kupanga, angayambitse mavuto kwa anthu ena. monga aspirin ali ndi kuchuluka kwa salicylates poyerekeza ndi chakudya. Mwachitsanzo, kudya kwa salicylic acid kumakhala 10-200 mg patsiku, poyerekeza ndi 325-650 mg pa mlingo wa aspirin. Kafukufuku apeza kuti aspirin imawonjezera chiopsezo cha matenda a m'mimba.
Salicylic Acid - Poyerekeza ndi AHAs pa Zodzikongoletsera
Salicylic acid (BHA) imachokera ku khungwa la msondodzi ndi masamba a holly, omwe amadziwikanso kuti asidi a masamba; zipatso za asidi (AHA) zimachotsedwa ku nzimbe; ndi asidi yotengedwa ku zipangizo ziwiri zosiyana. Zonsezi zimatha kuwongolera mafuta, kutulutsa, kuchotsa ziphuphu zakumaso, kuchepetsa pores, ndi kuzimiririka. Peel ya asidi ya zipatso yokhala ndi ndende yopitilira 50% imatha kuyendetsedwa ndi dermatologist, pomwe salicylic acid peel imayikidwa ngati chithandizo chamankhwala mosasamala kanthu za ndende. Ndikoyenera kudziwa kuti anthu ochepa sali oyenera kugwiritsa ntchito madzi aliwonse. Salicylic acid, kotero kuti salons wamba sangathe kuyigwiritsa ntchito. Ndikololedwa mwalamulo kupukuta khungu ndi kuchuluka kwa zipatso za asidi pansi pa 40% mu salons. Poyerekeza, asidi a zipatso ndi otetezeka kwambiri kuposa salicylic acid. Ponena za zotsatira zake, salicylic acid imangokhala yotsekedwa mu corneum yapamwamba, imangogwira ntchito yochepetsera komanso yotsekereza, ndipo kusintha kwa khungu kumakhala kwakanthawi, pomwe asidi a zipatso amalowa mu dermis kuti asinthe mawonekedwe a khungu, amene angathe kuchiritsidwa. Inde, ponena za maenje a ziphuphu omwe amapangidwa ndi dermis yowonongeka, zotsatira za salicylic acid ndi zopanda mphamvu, choncho salicylic acid sangatchedwe "salicylic acid peeling", ikhoza kutchedwa "salicylic acid treatment". Chitetezo ndi zotsatira za salicylic acid peeling ndi zipatso za peeling ndi zosiyana, chifukwa asidi wa zipatso alibe poizoni ndipo angagwiritsidwe ntchito kuchokera pansi mpaka pamwamba (8% -15% -20% -30% -40%), pang'onopang'ono azolowere sichidzayambitsa kutentha kwa khungu, kuwonongeka kapena zotsatira zina. Ndipo salicylic acid ndi poizoni, ndende yochuluka kwambiri si yoyenera kugwiritsidwa ntchito pa nkhope, pali malire ena a ndende, salicylic acid ndi ndende ya 3% -6% angagwiritsidwe ntchito pa exfoliation, kuposa 6% Zowononga khungu. , kuchuluka kwa 40% salicylic acid kumakhala ndi mphamvu zowononga keratin.
Kodi salicylic acid ndi chiyani?
Malinga ndi malamulo a State Food and Drug Administration (CFDA), malire apamwamba a zodzoladzola ndi 2%. Zatsimikiziridwa kuti 0.5% -2% salicylic acid ndiyotetezeka kuchiza ziphuphu. Sitikulimbikitsidwa kuti mufufuze mankhwala omwe ali ndi ndende yapamwamba. Kuyika uku ndikokwanira kukhala kothandiza.
Salicylic acid imatha kusungunula simenti pakati pa ma cuticles ndikupangitsa kuti ma cuticles agwe, kotero amatha kuchotsa ma cuticles okhuthala ndikulimbikitsa metabolism.
Khungu metabolism: Ntchito yaikulu ya stratum corneum ya khungu ndi kuteteza maselo a khungu lililonse. Kagayidwe ka maselo a epidermal wosanjikiza ndi wosanjikiza amasunthira kunja. Zinyenyeswazi zachilengedwe. Keratin yakale yomwe simagwa bwino imapangitsa khungu kuwoneka lolimba komanso losasunthika, limachepetsa kagayidwe kake, komanso kupanga ziphuphu kuti zitseke pores.
Zotsatira za exfoliation: Salicylic acid imatha kuchotsa cuticle owonjezera, ndipo nthawi yomweyo imalimbikitsa kukonzanso mwachangu kwa maselo a epidermal; ngati maselo a epidermal ali atsopano ndi maselo aang'ono odzaza ndi mphamvu, mwachibadwa adzabwezeretsa khungu losalala ndi losalala.
Shrink pores: Salicylic acid imasungunuka m'mafuta, ndipo imatha kulowa mkati mwakuya kwa pores pamodzi ndi zotupa za sebaceous zomwe zimatulutsa mafuta, zomwe zimathandiza kusungunula ma cuticles akale mu pores ndikuwongolera ma pores otsekedwa, kuti atseke. mapangidwe ziphuphu zakumaso ndi kuchepetsa izo Anatambasula pores.
Kupewa ziphuphu zakumaso: Salicylic acid imagwira ntchito pama cell a follicle khoma, zomwe zingathandize kuchotsa zotchinga tsitsi ndikuwongolera kukhetsa kwa cell. Itha kuletsa kutsekeka kwa pore kwa ziphuphu zazing'ono ndipo ndizothandiza kwambiri pamutu wakuda. Ikhoza kuchepetsa khoma la tsitsi Kutulutsa kosazolowereka, kumateteza zilonda zatsopano, koma sikumakhudza kuchepetsa kutulutsa kwa sebum ndi kuthetsa ziphuphu zakumaso.
Ntchito ya salicylic acid ndi kuyeretsa cutin yokalamba, kupangitsa khungu kukhala lolimba, komanso kuti lisakhale ndi ziphuphu.
Contact: Yoyo Liu
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Nthawi yotumiza: Mar-08-2023
