Vitamin C(VC) inowanzochena chigadziro muzvizoro, asi kune runyerekupe rwekuti kushandisa VC-ine zvizoro masikati hazvizongokundikana kuchena ganda, asi zvichasvibisawo ganda;vamwe vanhu vari kunetsekana kuti kushandisa zvigadzirwa zvekuchengetedza ganda zvine VC uye nicotinamide panguva imwe chete zvinokonzeresa allergies.Kushandiswa kwenguva refu kweVC-containing cosmetics kuchaita kuti ganda rive rakatetepa.Muchokwadi, izvi zvese kusanzwisisana pamusoro peVC-ine zvizoro.
Nhema 1: Kuishandisa mukati mezuva kunosvibisa ganda rako
VC, inozivikanwawo seL-ascorbic acid, ndeye yakasikwa antioxidant iyo inogona kushandiswa kurapa uye kudzivirira ganda kupisa.Muzvizoro, VC inogona kudzikisa kugadzirwa kwe melanin senge dopaquinone nekubatana necopper ions panzvimbo inoshanda ye tyrosinase, nekudaro ichikanganisa kugadzirwa kwe melanin uye kuwana mhedzisiro yekuchena nekubvisa freckles.
Kuumbwa kwe melanin kune hukama nekuita oxidation.Seyakajairwa antioxidant,VCinogona kutadzisa oxidation kuita, kuburitsa imwe chena mhedzisiro, inovandudza kugadzirisa kweganda uye kugona patsva, kunonoka kuchembera, uye kuderedza kukuvara kwe ultraviolet paganda.VC haina kugadzikana uye iri nyore oxidized mumhepo uye inorasikirwa neiyo antioxidant basa.Ultraviolet mwaranzi inomhanyisa iyo oxidation maitiro.Saka, zvinokurudzirwa kushandisaVC-ine zvizorousiku kana kure nechiedza.Kunyange zvazvo kushandiswa kweVC-containing cosmetics mukati mezuva kunogona kusawana migumisiro yakakwana, haizoiti kuti ganda risvibe.Kana ukashandisa VC-containing skin care products mukati mezuva, unofanira kuzvidzivirira kubva kuzuva, zvakadai sokupfeka mbatya dzine maoko marefu, ngowani, uye parasol.Magetsi emagetsi emagetsi akadai semarambi e-incandescent, marambi e-fluorescent, uye mwenje ye LED, kusiyana nemirairo ye ultraviolet, haikanganisi VC, saka hapana chikonzero chekunetseka pamusoro pechiedza chinobudiswa nemasikirini efoni anokanganisa kushanda kweVC-containing cosmetics.
Nhema 2: Kushandiswa kwenguva refu kuchaita kuti ganda rive rakatetepa
Zvatinowanzo taura nezvazvo“ganda kuonda”iko iko kutetepa kwe stratum corneum.Chikonzero chakakosha chekutetepa kwe stratum corneum ndechekuti masero ari mu basal layer akakuvadzwa uye haagone kupatsanura nekuberekana sezvakangoita, uye yekutanga metabolic cycle inoparadzwa.
Kunyangwe VC ine acidic, iyo VC yemukati muzvizora haina kukwana kukuvadza ganda.VC haizoite kuti stratum corneum ive yakatetepa, asi vanhu vane stratum corneum yakaonda kazhinji vane ganda rinonzwa.Naizvozvo, kana uchishandisa VC-ine whitening zvigadzirwa, unofanira kutanga wazviedza panzvimbo dzakadai seri kwezeve kuti uone kana paine allergies.
Cosmeticsinofanira kushandiswa zvine mwero.Kana ukadzishandisa zvakanyanya mukutsvaga kuchena, kazhinji unorasikirwa nezvakawanda kupfuura zvaunowana.Nezve VC, kudiwa kwemuviri wemunhu uye kutorwa kweVC kune zvishoma.VC inodarika zvikamu zvinodiwa zvemuviri wemunhu haingobatiki chete, asi inogona zvakare kukonzera manyoka uye kunyange kukanganisa coagulation basa.Nokudaro, VC-ine zvizoro haifaniri kushandiswa zvakanyanya.
Nguva yekutumira: Zvita-15-2023