Yintoni ukusetyenziswa kokongeza ivithamin A kwiimveliso zokhathalelo lwesikhumba?

Siyazi ukuba uninzi lwezithako ezisebenzayo zinemihlaba yazo.I-Hyaluroniki yokuthambisa, i-arbutin whitening, i-Boseline anti wrinkle, i-salicylic acid acne, kwaye ngamanye amaxesha abantu abatsha abambalwa abane-slash, njengeivithamin C,i-resveratrol, zombini ukwenza mhlophe kunye nokuchasa ukuguga, kodwa iziphumo ezingaphezulu kwezintathu zihambile.
Kukho izigidi zezithako zokhathalelo lwesikhumba, kodwa azikho zininzi ezinokusetyenziswa. Nangona kunjalo, isithako esinye sihlukile, "ioyile yendalo yonke" kwizithako zokhathalelo lwesikhumba -ivithamin A.
Kutheni le nto ivithamin A ibizwa ngokuba "yioyile yendalo yonke" kwizithako zokhathalelo lwesikhumba? Zithini iziphumo zokongeza ivithamin A kwiimveliso zokhathalelo lwesikhumba? Ndiza kukuxelela impendulo namhlanje ~
Ivithamin A yivithamin enyibilikayo ngamafutha. I-Vitamin A inokugcina ukukhula okuqhelekileyo, ukwahlula, ukwanda, kunye ne-keratinization yeeseli zesikhumba. Ityebile kwimifuno eyahlukeneyo kunye neziqhamo, kwaye ininzi esibindini sezilwanyana, ukuhlangabezana neemfuno zenyama kunye nemifuno edibeneyo.
I-Vitamin A ineendlela ezininzi kwaye ayikho i-compound enye, kodwa i-derivatives derivatives ye-retinol, kuquka i-retinol, i-retinol aldehyde, i-retinoic acid, i-retinol acetate, kunye ne-retinol palmitate.
Izibonelelo ezinamandla zokhathalelo lwevithamin A ziyenza isoloko isetyenziswa kwiimveliso ezahlukeneyo zokhathalelo lwesikhumba
Nangona kunjalo, i-retinol ayikwazi ukusebenza ngokuthe ngqo eluswini lomntu. Kufuneka iguqulwe ibe yi-retinoic acid ngama-enzymes abantu ukuze ibe nefuthe lokhathalelo lwesikhumba.
Ukusetyenziswa kwevithamin A kwiimveliso zokhathalelo lwesikhumba kubandakanya kuphela ukusetyenziswa kwe-retinol, i-retinol, kunye nezinto eziphuma kuzo. I-retinol kunye ne-retinol inokuxutywa ngokukhawuleza kwi-asidi ye-retinoic, kunye nokusebenza ngokukhawuleza.
I-Vitamin A idlala indima ebalulekileyo ekulawuleni ukuhlukana kweekeratinocytes, ngoko ukusebenza kwayo kufana nesango ledama.
✔Ukwenza mhlophe:
Ukubekwa kwe-melanin ngunobangela wobumnyama. I-Vitamin A inokuthintela ukuchithwa kwe-pigment kunye nokukhuthaza ukuchithwa kwe-stratum corneum, ukusombulula ngokufanelekileyo ingxaki yokuqokelelwa kwe-pigment kunye nemiphumo enamandla yokukhanya.
✔Ukususa imibimbi:
I-Vitamin A, njengomlamli, inokulawula i-metabolism ye-epidermis kunye ne-stratum corneum, ngelixa ikhuthaza i-collagen cell synthesis. Kwimibimbi esele ikhona kunye nokuphumla kwezihlunu, ukongeza nge-collagen kunokunceda ulusu lwakho lube thambileyo kwaye lube mpuluswa kwakhona.
✔ Ukuphucula ukuguga kweefoto:
Xa ulusu lomntu lubonakaliswe kwimitha ye-ultraviolet, inokuvuselela i-metalloproteinases (MMPs) emzimbeni, iphazamise i-collagen ye-metabolism evamile, kwaye ivuselelwe ngokugqithiseleyo yimitha ye-ultraviolet, enokuvelisa impendulo yoxinzelelo, ivumela i-collagen entsha kunye endala ukususwa emzimbeni ngaphandle kokuphazamiseka.
Ke ivithamin A inesiphumo esikhethekileyo, icinezela ngempumelelo abavukeli abasebenzayo be-metalloproteinases MMP1 kunye ne-MMP9, abangachaphazeleki kancinci kwi-UV stimulation, ukuthintela ngempumelelo ukulahleka kwe-collagen, ukuthintela ukufota, ukunciphisa imibimbi, kunye nokuqinisa ulusu.
✔ Ukususwa kwe-acne:
I-Vitamin A inomlingo kangangokuba ayinakukhuthaza kuphela ukuvuselelwa kweseli ye-basal stratum corneum, kodwa iphinde ikhawuleze isantya se-metabolism ye-stratum corneum. Ngokufana nesiphumo se-asidi yeziqhamo, ikhuthaza ukuchithwa kwe-keratin engaphezulu kwaye ivule iipores. Ngoko ke, isoloko isetyenziselwa ukunyanga i-acne kwaye inokufezekisaiziphumo ezichasayo.