Siyazi ukuthi iningi lezithako ezisebenzayo zinezinkambu zazo.I-Hyaluronic acid ithambisa, i-arbutin whitening, i-Boseline anti wrinkle, i-salicylic acid acne, futhi ngezinye izikhathi abantu abasha abambalwa abane-slash, njengeuvithamini C,i-resveratrol, kokubili ukwenza mhlophe nokulwa nokuguga, kodwa imiphumela engaphezu kwemithathu ayisekho.
Kunezigidi zezithako zokunakekela isikhumba, kodwa azikho eziningi ezingasetshenziswa. Kodwa-ke, isithako esisodwa sihlukile, okungamafutha "indawo yonke" ezithakweni zokunakekelwa kwesikhumba -vitamin A.
Kungani uvithamini A ebizwa ngokuthi “uwoyela wendawo yonke” ezithakweni zokunakekela isikhumba? Iyini imiphumela yokwengeza uvithamini A emikhiqizweni ye-skincare? Ngizokutshela impendulo namuhla~
I-Vitamin A iyivithamini encibilikayo ngamafutha. I-Vitamin A ingagcina ukukhula okuvamile, ukuhlukana, ukwanda, kanye ne-keratinization yamangqamuzana esikhumba. Inothile ngemifino nezithelo ezinhlobonhlobo, futhi igcwele esibindini sezilwane, ihlangabezana nezidingo zenyama nemifino ehambisanayo.
I-Vitamin A inezinhlobo eziningi futhi ayiyona inhlanganisela eyodwa, kodwa uchungechunge lokuphuma kwe-retinol, okuhlanganisa i-retinol, i-retinol aldehyde, i-retinoic acid, i-retinol acetate, ne-retinol palmitate.
Izinzuzo ezinamandla ze-skincare zikavithamini A ziyenza ivame ukusetshenziswa emikhiqizweni ehlukahlukene ye-skincare
Kodwa-ke, i-retinol ayikwazi ukusebenza ngokuqondile esikhumbeni somuntu. Idinga ukuguqulwa ibe i-retinoic acid ngama-enzyme womuntu ukuze ibe nomphumela we-skincare.
Ukusetshenziswa kwe-vitamin A emikhiqizweni ye-skincare kuhilela kuphela ukusetshenziswa kwe-retinol, i-retinol, kanye nokuphuma kwayo. I-retinol ne-retinol zingashintshwa ngokushesha zibe yi-retinoic acid, ngempumelelo esheshayo.
I-Vitamin A idlala indima ebalulekile ekulawuleni ukuhlukaniswa kwama-keratinocyte, ngakho ukusebenza kwayo kufana nesango ledamu.
✔Ukwenza mhlophe:
Ukufakwa kwe-melanin kuyimbangela yokuba mnyama. I-Vitamin A ingavimbela ukufakwa kwe-pigment futhi ikhuthaze ukuchithwa kwe-stratum corneum, ixazulule ngempumelelo inkinga yokuqoqwa kwe-pigment futhi ibe nemiphumela eqinile yokumhlophe.
✔Ukususa imibimbi:
I-Vitamin A, njengomxhumanisi, ingalawula ukuguqulwa kwe-epidermis ne-stratum corneum, kuyilapho ikhuthaza ukuhlanganiswa kwamaseli e-collagen. Ngemibimbi ekhona kanye nokukhululeka kwemisipha, ukugcwalisa nge-collagen kungasiza isikhumba sakho sibe thambile futhi sibushelelezi futhi.
✔ Ukuthuthukisa ukuguga kwesithombe:
Lapho isikhumba somuntu sichayeka emisebeni ye-ultraviolet, singashukumisa i-metalloproteinase (MMPs) emzimbeni, siphazamise ukuhleleka okujwayelekile kwe-collagen metabolism, futhi sivuswe ngokweqile emisebeni ye-ultraviolet, engaveza impendulo yokucindezeleka, ivumele i-collagen entsha nendala ukuthi kususwa emzimbeni ngaphandle kokuhlukaniswa.
Ngakho-ke uvithamini A unomphumela oyingqayizivele, ucindezela ngempumelelo izihlubuki ezisebenzayo ze-metalloproteinases MMP1 kanye ne-MMP9, ezingenwa kalula ukugqugquzelwa kwe-UV, ukuvimbela ngempumelelo ukulahleka kwe-collagen, ukuvimbela ukuthwebula izithombe, ukunciphisa imibimbi, nokuqinisa isikhumba.
✔ Ukususwa kwezinduna:
I-Vitamin A inomlingo kangangokuthi ayikwazi nje ukukhuthaza ukuvuselelwa kweseli ye-basal stratum corneum, kodwa futhi isheshise izinga lomzimba we-stratum corneum. Ngokufanayo nomphumela we-asidi yesithelo, ikhuthaza ukuchithwa kwe-keratin ngokweqile futhi ivule ama-pores. Ngakho-ke, kuvame ukusetshenziselwa ukwelapha induna futhi ingafinyelela futhiimiphumela elwa nokuvuvukala.
Isikhathi sokuthumela: May-21-2024
