I-Salicylic Acid - Iipropati
Le mveliso iyikristale enaliti ecocekileyo ecocekileyo okanye i-crystalline powder emhlophe; ayinavumba okanye iphantse ingabinavumba; isisombululo esinamanzi sibonisa ukusabela okumuncu. Le mveliso inyibilika ngokulula kwi-ethanol okanye kwi-ether, i-soluble emanzini abilayo, i-soluble kancinane kwi-trifluoromethane, i-soluble kancinane emanzini.
Intshayelelo yeSalicylic Acid
I-salicylic acid, ekwabizwa ngokuba yi-salicylic acid, ngumgubo omhlophe oyikristale, ongenavumba, kunye nencasa ekrakra kancinane emva koko incasa ehlabayo. Ikhona kwi-willow bark, amagqabi eperile amhlophe kunye ne-birch emnandi kwindalo. I-Chemical formula C6H4(OH)(COOH), indawo yokunyibilika 157-159℃, ngokuthe ngcembe itshintsha umbala phantsi kokukhanya. Ukuxinana kobudlelwane yi-1.44. Indawo yokubilisa imalunga ne-211°C/2.67kPa. Ukuthotywa ngaphantsi kwama-76°C. Ngaphantsi koxinzelelo oluqhelekileyo, inokuchithwa kwi-phenol kunye ne-carbon dioxide ngokufudumeza ngokukhawuleza. Inyibilika kwi ethanol, ether, chloroform, benzene, acetone, turpentine, ayinyibiliki lula emanzini. I-1g ye-salicylic acid inokunyibilika kwi-460ml yamanzi, i-15ml yamanzi abilayo, i-2.7ml ye-ethanol, i-3ml ye-acetone, i-3ml ye-ether, i-42ml ye-chloroform, i-135ml ye-benzene, i-52ml ye-turpentine ye-8ml ye-turpentine kunye ne-petroleum ye-8ml, i-petroleum ye-8ml ether. Ukongeza i-sodium phosphate, i-borax, njl njl. kunokunyusa ukunyibilika kwe-salicylic acid emanzini. I-pH yesisombululo se-aqueous salicylic acid yi-2.4. I-salicylic acid kunye ne-ferric chloride isisombululo samanzi sivelisa umbala omfusa okhethekileyo.
Mhlawumbi awuzange uve nge-salicylic acid, kodwa kufuneka uqhelane ne-aspirin. Enyanisweni, i-aspirin iphuma kwi-salicylic acid.Ukongezelela kwi-synthetic salicylic acid kwezinye iziyobisi, i-asidi ye-salicylic yendalo ityebileyo kwizinto ezininzi zokutya, ezifana neziqhamo ezininzi, imifuno, ikofu, iti, amantongomane, iziqholo kunye nobusi. Ezi zendalo ze-salicylic acids zisityalo Indlela yokuzikhusela kwizinambuzane, i-fungi kunye nezifo.Nangona kunjalo, i-salicylic acid, nokuba yendalo okanye i-synthetic, ingabangela ukusabela okubi kwabanye abantu. njenge aspirin ziqulethe izixa eziphezulu zesalicylates xa kuthelekiswa nokutya. Ngokomzekelo, ukutya okudliwayo kwe-salicylic acid ngokuqhelekileyo yi-10-200 mg ngosuku, xa kuthelekiswa ne-325-650 mg ye-dose ye-aspirin.Izifundo ziye zafumanisa ukuba i-aspirin yandisa ingozi yesifo sesisu.
I-Salicylic Acid - Xa kuthelekiswa ne-AHAs ye-Cosmetic Effects
I-Salicylic acid (BHA) ikhutshwe kwi-willow bark kunye namaqabunga e-holly, eyaziwa ngokuba yi-asidi yemifuno; iasidi yeziqhamo (AHA) ikhutshwa kummoba; yiasidi ethathwe kwizinto ezimbini ezahlukeneyo ekrwada. Zombini ziyakwazi ukulawula i-oyile, i-exfoliate, i-acne ecacileyo, i-pores eyanciphayo, kwaye iphele amabala. Isiqhamo se-asidi yesiqhamo esine-concentration engaphezu kwe-50% sinokusebenza kuphela yi-dermatologist, ngelixa i-salicylic acid peel ihlelwa njengonyango lonyango kungakhathaliseki ukuba kugxininisekile. Kuyafaneleka ukuba uqaphele ukuba abantu abambalwa abafanelekanga ukusebenzisa nayiphi na ingxube yamanzi. I-salicylic acid, ngoko ke ii-salon zobuhle jikelele azikwazi ukuyiphumeza. Kuvunyelwe ngokusemthethweni ukwenza ukuxobula ulusu ngoxinzelelo lwe-asidi yeziqhamo engaphantsi kwe-40% kwiisaluni zobuhle. Xa kuthelekiswa, i-asidi yeziqhamo ikhuselekile kakhulu kune-salicylic acid. Ngokubhekiselele kwisiphumo, i-salicylic acid itshixiwe kuphela kwi-corneum ye-stratum engaphezulu, idlala indima yonyango olulula kunye nokuthintela, kunye nokutshintsha kwesikhumba sexeshana kuphela, ngelixa iziqhamo ze-asidi zingena kwi-dermis ukuze zitshintshe ngokusisiseko ukuthungwa kwesikhumba, ezinokunyangeka. Ewe, malunga nemigodi ye-acne eyenziwe yi-dermis eyonakalisiweyo, umphumo we-salicylic acid awunamandla, ngoko i-salicylic acid ayinakubizwa ngokuthi "i-salicylic acid peeling", ingabizwa kuphela ngokuthi "unyango lwe-salicylic acid". Ukhuseleko kunye nefuthe le-asidi ye-salicylic exobula kunye nokuxobula i-asidi yeziqhamo zahlukile, kuba i-asidi yeziqhamo ayinayo ityhefu kwaye ingasetyenziswa ukusuka ezantsi ukuya phezulu (8% -15% -20% -30% -40%), ngokucothayo ukuziqhelanisa ne ayiyi kubangela ukutshisa kwesikhumba, ukuphazamiseka okanye nayiphi na imiphumo emibi. Kwaye i-salicylic acid inetyhefu, i-concentration ephezulu kakhulu ayifanelekanga ukusetyenziswa ebusweni, kukho umda othile woxinaniso, i-salicylic acid ene-concentration ye-3% -6% ingasetyenziselwa ukukhupha, ngaphezu kwe-6% I-Corrosive esikhumbeni. , i-concentration ephezulu ye-40% ye-salicylic acid ineempawu eziqinileyo ze-keratin ezonakalisayo.
Yintoni eyenza i-salicylic acid?
Ngokutsho kwemimiselo yoLawulo loMbuso lokuTya kunye neDrug (CFDA), umda ophezulu wokuxinwa kwezithambiso yi-2%. Kuye kwangqinwa ukuba i-0.5% -2% i-salicylic acid ikhuselekile ngokufanelekileyo kunyango lwe-acne. Akukhuthazwa ukuba ufune iimveliso ezinoxinzelelo oluphezulu. Le ngqwalasela yanele ukuba isebenze.
I-salicylic acid inokunyibilikisa i-samente phakathi kwe-cuticles kwaye yenza i-cuticles ziwe, ngoko inokususa i-cuticles enzima kwaye ikhuthaze imetabolism.
I-Skin metabolism: Umsebenzi oyintloko we-stratum corneum yolusu kukukhusela iiseli zoluhlu ngalunye lwesikhumba. Imetabolism ye-epidermal cells layer by layer iya kuphumela ngaphandle ngokwendalo. Iimvuthuluka zendalo. I-keratin endala engawi ngokuqhelekileyo iya kwenza ulusu lubonakale lurhabaxa kwaye luthambile, lucothise isantya semetabolism yolusu, kwaye lude lwenze amaqhakuva ukuvala imingxunya.
Umphumo we-exfoliation: I-Salicylic acid inokususa i-cuticle engaphezulu, kwaye ngexesha elifanayo likhuthaza ukuvuselelwa ngokukhawuleza kweeseli ze-epidermal; ukuba iiseli ze-epidermal zintsha kwaye iiseli ezincinci zigcwele amandla, ngokwemvelo ziya kubuyisela ulusu oluthambileyo noluthambileyo.
I-pores Shrink: I-Salicylic acid i-fat-soluble, kwaye inokungena kwi-pores enzulu ye-pores kunye ne-sebaceous glands ekhupha ioli, eluncedo ukunyibilikisa i-cuticles endala eqokelelweyo kwi-pores kunye nokuphucula imeko ye-pores evaliweyo, ngoko inokubhloka. ukuvela kwamaqhakuva kunye nokuwacutha Iimbobo ezizolukileyo.
Uthintelo lwe-acne: I-Salicylic acid isebenza kwiiseli zodonga lwe-follicle yeenwele, ezinokunceda ukususa iifollicle zeenwele ezivaliweyo kunye nokulungisa ukuchithwa kweseli okungaqhelekanga. Inokuthintela ukuvaleka kwe-pore kwi-acne encinci kwaye iyasebenza kakhulu kwi-blackheads. Inokunciphisa udonga lweenwele Ukukhutshwa okungaqhelekanga, kuthintela izilonda ezitsha, kodwa akukho mpembelelo ekunciphiseni i-sebum secretion kunye nokuphelisa i-acne bacilli.
Umsebenzi we-salicylic acid kukucoca i-cutin yokuguga, ukwenza ulusu lubonakale luthambile, kwaye luncinci kakhulu kwi-acne.
Qhagamshelana:Yoyo Liu
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Ixesha lokuposa: Mar-08-2023
