{"id":1444,"date":"2024-12-20T16:56:00","date_gmt":"2024-12-20T16:56:00","guid":{"rendered":"https:\/\/dermatologyscience.institute\/?p=1444"},"modified":"2025-03-26T11:34:17","modified_gmt":"2025-03-26T11:34:17","slug":"vitamino-c-galia-odai-kodel-tai-vienas-svarbiausiu-ingredientu","status":"publish","type":"post","link":"https:\/\/dermatologyscience.institute\/cs\/vitamino-c-galia-odai-kodel-tai-vienas-svarbiausiu-ingredientu\/","title":{"rendered":"S\u00edla vitam\u00ednu C pro ple\u0165 \u2013 pro\u010d je jednou z nejd\u016fle\u017eit\u011bj\u0161\u00edch ingredienc\u00ed?"},"content":{"rendered":"<p>N\u011bkter\u00e9 slo\u017eky v p\u00e9\u010di o ple\u0165 z\u016fst\u00e1vaj\u00ed z\u00e1hadou, zat\u00edmco jin\u00e9, jako nap\u0159\u00edklad vitam\u00edn C, jsou \u0161iroce zn\u00e1m\u00e9 a vyu\u017e\u00edvan\u00e9. Najdeme ho v rozjas\u0148uj\u00edc\u00edch produktech, o\u010dn\u00edch kr\u00e9mech proti vr\u00e1sk\u00e1m, s\u00e9rech i r\u016fzn\u00fdch kosmetick\u00fdch procedur\u00e1ch. Vitam\u00edn C je st\u00e1lic\u00ed v mnoha pe\u010duj\u00edc\u00edch rutin\u00e1ch, a\u0165 u\u017e jste v p\u00e9\u010di o ple\u0165 nov\u00e1\u010dkem, nebo odborn\u00edkem, ke kter\u00e9mu se ostatn\u00ed obracej\u00ed pro rady. Pokud jste jej do sv\u00e9 p\u00e9\u010de o ple\u0165 je\u0161t\u011b neza\u0159adili, zde je n\u011bkolik d\u016fvod\u016f, pro\u010d byste m\u011bli.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Co je vitam\u00edn C?<\/h2>\n\n\n\n<p>Podle odborn\u00edk\u016f je vitam\u00edn C nezbytnou \u017eivinou pro r\u016fst a regeneraci tk\u00e1n\u00ed, v\u010detn\u011b poko\u017eky. Proto\u017ee si jej na\u0161e t\u011blo nedok\u00e1\u017ee samo vyrobit, z\u00edsk\u00e1v\u00e1me ho z ovoce, zeleniny a kosmetick\u00fdch produkt\u016f. Na rozd\u00edl od n\u011bkter\u00fdch jin\u00fdch aktivn\u00edch slo\u017eek m\u016f\u017ee b\u00fdt synteticky vyroben a n\u00e1sledn\u011b p\u0159id\u00e1n do s\u00e9r, kr\u00e9m\u016f a toner\u016f.<\/p>\n\n\n\n<p>Ne v\u0161echny formy vitam\u00ednu C jsou ale stejn\u011b \u00fa\u010dinn\u00e9. Nejsiln\u011bj\u0161\u00ed a nej\u010dist\u0161\u00ed formou je L-askorbov\u00e1 kyselina, kter\u00e1 je nejl\u00e9pe prozkouman\u00e1 a nej\u00fa\u010dinn\u011bj\u0161\u00ed. Existuj\u00ed i stabilizovan\u00e9 deriv\u00e1ty, jako je sodium ascorbyl phosphate nebo magnesium ascorbyl phosphate, kter\u00e9 se na pleti postupn\u011b p\u0159em\u011b\u0148uj\u00ed na \u010dist\u00fd vitam\u00edn C, ale jejich \u00fa\u010dinnost m\u016f\u017ee b\u00fdt ni\u017e\u0161\u00ed ne\u017e u L-askorbov\u00e9 kyseliny.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Jak vitam\u00edn C funguje?<\/h2>\n\n\n\n<p>Abychom pochopili jeho \u00fa\u010dinky, je d\u016fle\u017eit\u00e9 v\u011bd\u011bt, jak voln\u00e9 radik\u00e1ly po\u0161kozuj\u00ed poko\u017eku. Reaktivn\u00ed kysl\u00edkov\u00e9 slou\u010deniny (ROS) jsou typem voln\u00fdch radik\u00e1l\u016f, kter\u00e9 vznikaj\u00ed vlivem zne\u010di\u0161t\u011bn\u00ed, UV z\u00e1\u0159en\u00ed, cigaretov\u00e9ho kou\u0159e a stresu. Tyto l\u00e1tky po\u0161kozuj\u00ed strukturu poko\u017eky, urychluj\u00ed st\u00e1rnut\u00ed a zp\u016fsobuj\u00ed nepravideln\u00fd t\u00f3n pleti.<\/p>\n\n\n\n<p>S\u00edlu vitam\u00ednu C v boji proti oxidativn\u00edmu stresu lze snadno ilustrovat jednoduch\u00fdm experimentem s jablkem: Jedna polovina byla pot\u0159en\u00e1 s\u00e9rem s vitam\u00ednem C, zat\u00edmco druh\u00e1 z\u016fstala neo\u0161et\u0159en\u00e1. Po n\u011bkolika hodin\u00e1ch neo\u0161et\u0159en\u00e1 \u010d\u00e1st zoxidovala a zhn\u011bdla, zat\u00edmco o\u0161et\u0159en\u00e1 z\u016fstala sv\u011b\u017e\u00ed.\nTento experiment ukazuje, jak vitam\u00edn C chr\u00e1n\u00ed ple\u0165 p\u0159ed oxidac\u00ed a p\u0159ed\u010dasn\u00fdm st\u00e1rnut\u00edm.<\/p>\n\n\n\n<p>Vitam\u00edn C je v\u0161ak nestabiln\u00ed a p\u0159i vystaven\u00ed sv\u011btlu, vzduchu a teplu ztr\u00e1c\u00ed \u00fa\u010dinnost. Proto je d\u016fle\u017eit\u00e9 skladovat ho v neprody\u0161n\u00e9m, nepr\u016fhledn\u00e9m obalu a uchov\u00e1vat na chladn\u00e9m m\u00edst\u011b. Pokud va\u0161e s\u00e9rum zhn\u011bdne, znamen\u00e1 to, \u017ee zoxidovalo a ji\u017e nen\u00ed \u00fa\u010dinn\u00e9.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">P\u0159\u00ednosy vitam\u00ednu C pro poko\u017eku<\/h2>\n\n\n\n<p>Vitam\u00edn C je jednou z nejsiln\u011bj\u0161\u00edch slo\u017eek v p\u00e9\u010di o ple\u0165, kter\u00e1 poskytuje \u0159adu v\u00fdhod:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"translation-block\"><strong>Apsaugo nuo aplinkos veiksni\u0173:<\/strong> Kaip antioksidantas, jis neutralizuoja laisvuosius radikalus, apsaugodamas od\u0105 nuo UV spinduli\u0173, tar\u0161os ir kit\u0173 \u017ealing\u0173 faktori\u0173.<\/li>\n\n\n\n<li class=\"translation-block\"><strong>Skatina kolageno gamyb\u0105:<\/strong> Kolagenas suteikia odai strukt\u016br\u0105 ir stangrum\u0105, ta\u010diau su am\u017eiumi jo ma\u017e\u0117ja. Vitaminas C b\u016btinas kolageno sintezei, tod\u0117l jis padeda ma\u017einti rauk\u0161les ir stangrina od\u0105.<\/li>\n\n\n\n<li class=\"translation-block\"><strong>\u0160viesina od\u0105 ir ma\u017eina pigmentacij\u0105:<\/strong> Vitaminas C slopina melanino gamyb\u0105, tod\u0117l ma\u017eina tamsias d\u0117mes, hiperpigmentacij\u0105 ir skaistina od\u0105.<\/li>\n\n\n\n<li class=\"translation-block\"><strong>Pagerina odos tekst\u016br\u0105:<\/strong> Reguliariai naudojant, jis padeda i\u0161lyginti odos pavir\u0161i\u0173 ir suma\u017einti smulkias linijas.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Mo\u017en\u00e9 vedlej\u0161\u00ed \u00fa\u010dinky<\/h2>\n\n\n\n<p>Vitam\u00edn C je bezpe\u010dn\u00fd pro ka\u017edodenn\u00ed pou\u017eit\u00ed, ale vysok\u00e9 koncentrace mohou b\u00fdt p\u0159\u00edli\u0161 siln\u00e9 pro citlivou ple\u0165 a zp\u016fsobit podr\u00e1\u017ed\u011bn\u00ed.\nPokud m\u00e1te citlivou poko\u017eku, za\u010dn\u011bte s ni\u017e\u0161\u00ed koncentrac\u00ed (kolem 10 %) a sledujte reakci. N\u011bkter\u00e9 produkty s vitam\u00ednem C mohou m\u00edt mastn\u011bj\u0161\u00ed texturu, tak\u017ee pokud m\u00e1te mastnou ple\u0165, volte lehk\u00e9 a rychle se vst\u0159eb\u00e1vaj\u00edc\u00ed produkty.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Jak spr\u00e1vn\u011b pou\u017e\u00edvat vitam\u00edn C?<\/h2>\n\n\n\n<p>Jednou z \u010dast\u00fdch ot\u00e1zek je, zda pou\u017e\u00edvat vitam\u00edn C r\u00e1no nebo ve\u010der. R\u00e1no \u2013 chr\u00e1n\u00ed ple\u0165 p\u0159ed voln\u00fdmi radik\u00e1ly a UV z\u00e1\u0159en\u00edm, Ve\u010der \u2013 regeneruje ple\u0165 b\u011bhem no\u010dn\u00ed obnovy.\nNejd\u016fle\u017eit\u011bj\u0161\u00ed je pravidelnost \u2013 pro maxim\u00e1ln\u00ed v\u00fdsledky je d\u016fle\u017eit\u00e9 pou\u017e\u00edvat vitam\u00edn C dlouhodob\u011b.<\/p>\n\n\n\n<p>Pokud pou\u017e\u00edv\u00e1te s\u00e9rum s vitam\u00ednem C, nan\u00e1\u0161ejte ho na \u010distou ple\u0165 p\u0159ed hydrata\u010dn\u00edm kr\u00e9mem. Vyhn\u011bte se kombinaci s benzoylperoxidem, proto\u017ee ten m\u016f\u017ee sn\u00ed\u017eit \u00fa\u010dinnost vitam\u00ednu C.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Stabilita a formulace vitam\u00ednu C<\/h2>\n\n\n\n<p>I p\u0159es v\u0161echny sv\u00e9 benefity je vitam\u00edn C nestabiln\u00ed a rychle oxiduje. N\u011bkter\u00e9 zna\u010dky proto pou\u017e\u00edvaj\u00ed pr\u00e1\u0161kov\u00fd vitam\u00edn C, ale pouh\u00e9 sm\u00edch\u00e1n\u00ed s kr\u00e9mem nebo s\u00e9rem nemus\u00ed b\u00fdt efektivn\u00ed. Pro spr\u00e1vnou absorpci mus\u00ed m\u00edt vitam\u00edn C n\u00edzk\u00e9 pH (kysel\u00e9 prost\u0159ed\u00ed), ale nespr\u00e1vn\u00e1 formulace m\u016f\u017ee zp\u016fsobit podr\u00e1\u017ed\u011bn\u00ed pleti.<\/p>\n\n\n\n<p>Proto je nejlep\u0161\u00ed vyb\u00edrat kvalitn\u00ed produkty s v\u011bdecky ov\u011b\u0159en\u00fdm slo\u017een\u00edm, kter\u00e9 zajist\u00ed stabilitu a \u00fa\u010dinnou penetraci do poko\u017eky. Odborn\u00edci doporu\u010duj\u00ed L-askorbovou kyselinu v kombinaci s vitam\u00ednem E, proto\u017ee ten stabilizuje formuli a zesiluje antioxida\u010dn\u00ed ochranu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Doporu\u010den\u00e9 produkty<\/h2>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXf3kPGM_mc1pEQ3HyU1E4BXhHrALNBYR-O7ErOBn4o5fD0zJc2hLSxOYJPw-Pd4mkvPLLGSdvxu9b9Muwruw90SlSWOiBuoGlxl8ZvPOtAtjFwSRiAuh1zPr7UVYAWtt-aIfvix?key=o4ND7moLbj1dOAaoNhckd73A\" alt=\"\" style=\"width:840px;height:auto\"\/><\/figure>\n\n\n\n<p class=\"has-text-align-center\">PURITO Pure Vitamin C Serum \u2013 Rozjas\u0148uj\u00edc\u00ed ple\u0165ov\u00e9 s\u00e9rum<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center\"><a href=\"https:\/\/www.pletovecentrum.cz\/products\/purito-pure-vitamin-c-serum\">Koupit nyn\u00ed<\/a><\/h3>\n\n\n\n<p class=\"has-text-align-center\"><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXdDfiB9ZxJy5KqZYu_jQ4nu1qGQOwKTTqRinZXuglVwCA8as-Rdu6VP-cwjrLPT-eGQgVgeROQ6QZWoH17MpPyukqMdotj69EBj9Nw_epP3lA6PmWf1KfuK37SYMjZ7A4pkONyDhA?key=o4ND7moLbj1dOAaoNhckd73A\" alt=\"\"\/><\/figure>\n\n\n\n<p class=\"has-text-align-center\">COSRX Refresh AHA BHA Vitamin C Daily Toner \u2013 Exfolia\u010dn\u00ed ple\u0165ov\u00fd toner<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center\"><a href=\"https:\/\/www.pletovecentrum.cz\/products\/cosrx-refresh-aha-bha-vitamin-c-daily-toner\">Koupit nyn\u00ed<\/a><\/h3>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Z\u00e1v\u011bre\u010dn\u00e9 my\u0161lenky<\/h2>\n\n\n\n<p>Vitam\u00edn C je kl\u00ed\u010dovou slo\u017ekou v p\u00e9\u010di o ple\u0165. Chr\u00e1n\u00ed poko\u017eku p\u0159ed \u0161kodliv\u00fdmi vlivy prost\u0159ed\u00ed, podporuje tvorbu kolagenu, redukuje pigmentaci a zlep\u0161uje texturu pleti.\nAby byl \u00fa\u010dinn\u00fd, je d\u016fle\u017eit\u00e9 vyb\u00edrat stabiln\u00ed formulace a spr\u00e1vn\u011b jej skladovat. Pokud tou\u017e\u00edte po zdrav\u00e9 a mladistv\u00e9 pleti, vitam\u00edn C by m\u011bl b\u00fdt sou\u010d\u00e1st\u00ed va\u0161\u00ed ka\u017edodenn\u00ed rutiny!<\/p>","protected":false},"excerpt":{"rendered":"<p>Kai kurie odos prie\u017ei\u016bros ingredientai vis dar lieka paslaptingi, ta\u010diau kiti, kaip vitaminas C, yra&hellip;<\/p>","protected":false},"author":5,"featured_media":1500,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[96,89],"tags":[],"class_list":["post-1444","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kosmetikos-sudetis","category-oda"],"_links":{"self":[{"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/posts\/1444","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/comments?post=1444"}],"version-history":[{"count":4,"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/posts\/1444\/revisions"}],"predecessor-version":[{"id":1953,"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/posts\/1444\/revisions\/1953"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/media\/1500"}],"wp:attachment":[{"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/media?parent=1444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/categories?post=1444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dermatologyscience.institute\/cs\/wp-json\/wp\/v2\/tags?post=1444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}