Mabaka a ho leka ho hlokomoloha letlalo la ho tsofala
Ha palo e ntseng e eketseha ea lipatlisiso e shebile hore na ke eng e bakang wrinkles le liphello tsa photoaging , tšebeliso ea beta hydroxy acid e eketsehile haholo ho tsebahala. Ho na le mefuta e 'meli ea hydroxy acid: alpha le beta. Alpha hydroxy acids (AHA) ke li-exfoliants tse tsoang lihlahisoa tsa seno le litholoana tse kang glycolic acid , e hlahisoang ke tsoekere le lactic acid (e hlahisoang ka lebese).
Ho na le beta e le 'ngoe feela ea hydroxy acid (BHA) e atisang ho sebelisoa lihlahisoa tsa tlhokomelo ea letlalo,' me ke salicylic acid, e tsoang ho aspirin.
Kamoo Beta Hydroxy Acid e Sebetsang Kateng
Beta hydroxy acid e sebetsa ka ho khetheha e le e hloekileng. E etsa hore lisele tsa epidermis (karolo e ka thōko ea letlalo) e be "e sa lumellane," e lumella lisele tsa letlalo le shoeleng hore li fokotsehe, li etse sebaka sa ho khutla ha letlalo le lecha. Beta hydroxy acid e tlalehoa hore e ntlafatse wrinkling, roughness, le mahlaseli a motlakase a letlalo la photodamagedite kamora bonyane likhoeli tse tšeletseng tsa letsatsi le letsatsi. Beta hydroxy acid e fumanoang ka lihlahisoa tsa skincare e sebetsa hantle ka ho fetisisa ho karolo ea 1 lekholong ho ea ho karolo ea 2 lekholong le ka pH ea 3 ho ea ho e 4.
Phapang pakeng tsa Alpha le Beta Hydroxy Acids
Phapang e khōlō pakeng tsa alpha hydroxy acids le beta hydroxy acid ke potso ea bona ea lipid (oli). Alpha hydroxy acids e na le metsi feela, ha beta ea hydroxy e le lerootho ea lipid, e bolelang hore e tla qhibiliha ka oli.
Sena se bolela hore beta hydroxy acid e khona ho kenella ka pore, e nang le sebum ea oli mme e fetisa lisele tsa letlalo tse shoeleng ka har'a pore. Ka lebaka la phapang ena libakeng, beta hydroxy acid e sebelisoa hamolemo bakeng sa letlalo la mafura ka mahlaseli le lihlopha tse tšoeu . Alpha hydroxy acids e sebelisoa habonolo ka letlalo le senyehileng ha letsatsi le senyehile moo ho phomoloang ha ho bothata.
Ho Sensitivity ea Letsatsi
Tšebeliso ea beta hydroxy acid e ka eketsa kutloisiso ea letsatsi ka karolo ea 50 lekholong, e bakang bothata bo thahasellisang. Ho bonahala eka beta hydroxy acid e ka khona ho etsolla tšenyo e bakiloeng ke photoaging, empa ka nako e ts'oanang, e etsa hore letlalo le khone ho ba le photoage. Ho hlakile hore mang kapa mang ea sebelisang beta hydroxy acid o lokela ho sebelisa setlolo se sireletsang letsatsing se nang le tšireletso ea UVA le UVB .
Ela Hloko ho Irritation ea Letlalo
Beta hydroxy acid e bonahala e sa halefise hakaalo ho feta alpha hydroxy acid, le hoja e kena ka hare ho pore. Sena se etsahala hobane salicylic acid e tsoa ho acetylsalicylic acid kapa aspirin. Aspirin e na le lintho tse khahlanong le ho ruruha, 'me salicylic acid e na le lintho tse ngata tse khahlanong le ho ruruha. Ho sa tsotellehe taba ena, beta hydroxy acid e ntse e ka baka masoabi a letlalo. Matšoao a ho halefa a kenyeletsa bofubelu, ho chesa, ho hlohlona, bohloko le mohlomong ho bolaoa. Batho ba nang le letlalo le mebala e lefifing ba kotsing e kholo ea ho bolaoa ha pigment e fetoha le beta hydroxy acid.
Ho sebelisa Beta Hydroxy Acid
Beta hydroxy acid e fumanoa mefuteng e sa tšoaneng ea tlhokomelo ea letlalo ho akarelletsa le mongobo , ba hloekisang, tranelate ea mahlo, setlolo sa letsatsi, le metheo. Ho molemo ho khetha sehlahisoa se nang le mokhoa o nepahetseng oa ho etsa beta hydroxy acid ho e sebelisa e le exfoliant, ebe o khetha lihlahisoa tse ling tsa tlhokomelo ea letlalo kapa litlolo tse sa nang le hydroxy acids ho fokotsa monyetla oa ho halefa ha letlalo.
Ho sebelisa beta hydroxy acid ka setsi sa mongobo ho ka ba molemo ka ho fetisisa. Bahloekisi ba nang le beta hydroxy acid ha ba atlehe hobane beta ea hydroxy acid e lokela ho kenngoa letlalong ho ea sebetsa. Batho ba hloekisang ba hlatsoa pele ponahalo ena e etsahala.
Ha ho lihlahisoa tse atlehang tse kopanyang beta hydroxy acid le sekoahelo sa letsatsi hobane se sireletsa letsatsi ha se tsitsitse ho pH se hlokehang ho etsa hore beta hydroxy acid e atlehe. Setlolo sa letsatsi se lokela ho sebelisoa ka bolokolohi ha se sebelisa beta hydroxy acid sehlahisoa. Sekoahelo sa letsatsi se lokela ho ba le SPF ea bonyane 15 bakeng sa tšireletso ea UVB (e ka bang 30 kapa holimo) 'me e na le avobenzone, titanium dioxide, kapa zinc oxide bakeng sa tšireletso ea UVA.
Beta hydroxy acid e sebetsa ka ho fetisisa ka mahlakoreng a 1 ho ea ho a 2 lekholong le ka pH ea 3 ho isa ho 4. Ka bomalimabe, baetsi ba litlolo ha ba hlokehe hore ba kenyelle tlhahisoleseding ea pH lebitso. Tsela e le 'ngoe feela ea ho tseba pH ea sehlahisoa ke ho e lekola ka pH e hlophisitsoeng.
Ho fapana le li-alpha hydroxy acid, tse lokelang ho thathamisoa mefuteng e meraro e ka holimo ho bonts'a mohopolo o nepahetseng, beta hydroxy acid e ka thathamisoa bohareng kapa esita le ka tlaase ho lethathamo la motsoako hobane le atleha maemong a fokolang.
> Mohloli:
> Beta Hydroxy Acids. US Administration of Drug and Drug Administration. https://www.fda.gov/Cosmetics/ProductsIngredients/Ingredients/ucm107943.htm.