{"id":18910,"date":"2022-06-06T11:23:03","date_gmt":"2022-06-06T09:23:03","guid":{"rendered":"https:\/\/naturalpoland.pl\/artykuly\/uncategorized-cs\/kyselina-retinova-v-kosmetice\/"},"modified":"2023-07-24T09:28:07","modified_gmt":"2023-07-24T07:28:07","slug":"kyselina-retinova-v-kosmetice","status":"publish","type":"post","link":"https:\/\/naturalpoland.com\/cs\/artykuly\/kosmeticke-suroviny\/kyselina-retinova-v-kosmetice\/","title":{"rendered":"Kyselina retinov\u00e1 a retinol &#8211; rozd\u00edly a \u00fa\u010dinky"},"content":{"rendered":"\n<p><strong><a href=\"https:\/\/naturalpoland.pl\/cs\/produkty\/produkty-pro-farmaceuticky-a-zdravotnicky-prumysl\/kyselina-retinova\/\">Vitamin A<\/a><\/strong> je \u0159azen mezi &#8222;vitam\u00edny ml\u00e1d\u00ed&#8220; a ne bezd\u016fvodn\u011b je hojn\u011b vyu\u017e\u00edv\u00e1n v l\u00e9ka\u0159stv\u00ed. <a href=\"https:\/\/naturalpoland.pl\/cs\/Kategorie\/produkty-pro-kosmeticky-prumysl\/\"><strong>kosmetick\u00e9m pr\u016fmyslu<\/strong><\/a> i <a href=\"https:\/\/naturalpoland.pl\/cs\/Kategorie\/produkty-pro-farmaceuticky-a-zdravotnicky-prumysl\/\"><strong>farmaceutick\u00e9m pr\u016fmyslu<\/strong><\/a>. Jeho n\u00e1zev v\u0161ak neodkazuje pouze na jednu slou\u010deninu. Vitamin A je vlastn\u011b cel\u00e1 skupina l\u00e1tek, kter\u00e9 se vyzna\u010duj\u00ed r\u016fzn\u00fdmi biologick\u00fdmi aktivitami. Pat\u0159\u00ed mezi n\u011b <a href=\"https:\/\/naturalpoland.pl\/cs\/produkty\/produkty-pro-kosmeticky-prumysl\/kosmeticke-suroviny\/retinol\/\"><strong>retinol<\/strong><\/a> i <strong>kyselina retinov\u00e1<\/strong>.<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><div data-block-name=\"woocommerce\/featured-product\" data-edit-mode=\"false\" data-image-fit=\"cover\" data-min-height=\"398\" data-product-id=\"5805\" class=\"wc-block-featured-product alignnone has-background-dim wp-block-woocommerce-featured-product\" style=\"min-height:398px;\"><div class=\"wc-block-featured-product__wrapper\"><div class=\"background-dim__overlay\" style=\"background-color: #000000\"><\/div><img decoding=\"async\" alt=\"Retinol\" class=\"wc-block-featured-product__background-image\" src=\"https:\/\/naturalpoland.com\/wp-content\/uploads\/retinol.webp\" style=\"object-fit: cover;object-position: 50% 50%;\" \/><h2 class=\"wc-block-featured-product__title\">Retinol<\/h2><div class=\"wc-block-featured-product__description\"><p>Jsme velkoobchodn\u00edm distributorem vysoce kvalitn\u00edho retinolu. Retinol je p\u0159\u00edpravek, kter\u00fd je deriv\u00e1tem vitaminu A. P\u0159esn\u011bji jde o jeho nejaktivn\u011bj\u0161\u00ed formu dostupnou na trhu. <\/p>\n<\/div><div class=\"wc-block-featured-product__price\"><\/div><div class=\"wc-block-featured-product__inner-blocks\">\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/naturalpoland.pl\/cs\/produkty\/produkty-pro-kosmeticky-prumysl\/kosmeticke-suroviny\/retinol\/\">Kup nyn\u00ed<\/a><\/div>\n<\/div>\n\n<\/div><\/div><\/div><\/div>\n<\/div>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"formy-witaminy-a\">Jak\u00e9 jsou formy vitaminu A?<\/h2>\n\n\n\n<p>Term\u00edn vitamin A ozna\u010duje l\u00e1tky s podobnou strukturou a biologickou aktivitou. Tyto slou\u010deniny, zn\u00e1m\u00e9 tak\u00e9 jako <strong>retinoidy<\/strong>, jsou p\u0159\u00edrodn\u00ed nebo syntetick\u00e9 deriv\u00e1ty <a href=\"\"><strong>retinolu<\/strong><\/a>.  (Viz tak\u00e9: <a href=\"https:\/\/naturalpoland.pl\/artykuly\/surowce-kosmetyczne\/jak-stosowac-retinol\/\"><strong><em>Jak beru retinol?<\/em><\/strong><\/a> )<\/p>\n\n\n\n<p>Retinoidy se v sou\u010dasnosti d\u011bl\u00ed do t\u0159\u00ed skupin:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Retinoidy prvn\u00ed generace<\/strong> (monoaromatick\u00e9 p\u0159\u00edrodn\u00ed deriv\u00e1ty retinolu s neselektivn\u00edm \u00fa\u010dinkem):\n<ul class=\"wp-block-list\">\n<li><strong>Retinol<\/strong><\/li>\n\n\n\n<li>Retinaldehyd<\/li>\n\n\n\n<li><strong>Kyselina retinov\u00e1 (tretinoin)<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Retinoidy druh\u00e9 generace<\/strong> (aromatick\u00e9 syntetick\u00e9 deriv\u00e1ty podobn\u00e9 struktu\u0159e retinolu):\n<ul class=\"wp-block-list\">\n<li>Acitretin<\/li>\n\n\n\n<li>Etretin\u00e1t<\/li>\n\n\n\n<li>Motretinid<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Retinoidy t\u0159et\u00ed generace<\/strong> (polyaromatick\u00e9 syntetick\u00e9 deriv\u00e1ty se selektivn\u00edm \u00fa\u010dinkem):\n<ul class=\"wp-block-list\">\n<li>Adapalen<\/li>\n\n\n\n<li>Beksaroten<\/li>\n\n\n\n<li>Tazaroten<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>Jak retinol, tak kyselina retinov\u00e1 (neboli tretinoin) pat\u0159\u00ed do prvn\u00ed generace retinoid\u016f a jsou to slou\u010deniny p\u0159\u00edrodn\u00edho p\u016fvodu. Li\u0161\u00ed se v\u0161ak svou \u00fa\u010dinnost\u00ed a pou\u017eit\u00edm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"tretynoina-w-kosmetyce\">Retinoidy a jejich \u00fa\u010dinky<\/h2>\n\n\n\n<p>Vitamin A se d\u00edky sv\u00e9 vysok\u00e9 rozpustnosti v tuc\u00edch dob\u0159e vst\u0159eb\u00e1v\u00e1 k\u016f\u017e\u00ed. Mechanismus jejich \u00fa\u010dinku je zalo\u017een na jejich afinit\u011b ke specifick\u00fdm bun\u011b\u010dn\u00fdm receptor\u016fm &#8211; RAR (receptory pro kyselinu retinovou) a RXR (retinoidn\u00ed receptory X). Prost\u0159ednictv\u00edm t\u011bchto receptor\u016f retinoidy ovliv\u0148uj\u00ed procesy diferenciace bun\u011bk a pom\u00e1haj\u00ed udr\u017eovat spr\u00e1vn\u00fd stav epidermis. Kyselina retinov\u00e1 je nej\u00fa\u010dinn\u011bj\u0161\u00ed slou\u010deninou a m\u016f\u017ee b\u00fdt pou\u017eita pouze v l\u00e9c\u00edch. Retinol je naproti tomu l\u00e1tka s o n\u011bco slab\u0161\u00ed aktivitou, ale d\u00edky sv\u00e9 vysok\u00e9 \u00fa\u010dinnosti je velmi obl\u00edben\u00e1 v kosmetick\u00e9m pr\u016fmyslu.    <\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Retinol v kosmetice<\/h1>\n\n\n\n<p>P\u0159\u00edzniv\u00e9 \u00fa\u010dinky retinolu na ple\u0165 jsou cen\u011bny zejm\u00e9na v kosmetice proti st\u00e1rnut\u00ed. Vitamin A zlep\u0161uje pru\u017enost poko\u017eky, bojuje proti zm\u011bn\u011b barvy a redukuje vr\u00e1sky. Tento \u00fa\u010dinek souvis\u00ed mimo jin\u00e9 se stimulac\u00ed proliferace fibroblast\u016f a keratinocyt\u016f. T\u00edm, \u017ee retinoidy posiluj\u00ed epiderm\u00e1ln\u00ed vrstvy, sni\u017euj\u00ed transepiderm\u00e1ln\u00ed ztr\u00e1tu vody a inhibic\u00ed transportu melaninu sni\u017euj\u00ed odbarven\u00ed.    <\/p>\n\n\n\n<p>Antioxida\u010dn\u00ed vlastnosti vitaminu A se projevuj\u00ed tak\u00e9 v <strong>p\u016fsoben\u00ed <em>proti st\u00e1rnut\u00ed<\/em><\/strong>. D\u00edky odstra\u0148ov\u00e1n\u00ed voln\u00fdch radik\u00e1l\u016f a sni\u017eov\u00e1n\u00ed produkce metaloprotein\u00e1z chr\u00e1n\u00ed kosmetika s obsahem retinoid\u016f p\u0159ed \u0161kodliv\u00fdmi \u00fa\u010dinky UV z\u00e1\u0159en\u00ed a p\u016fsob\u00ed proti st\u00e1rnut\u00ed pleti. V kosmetick\u00e9m pr\u016fmyslu se retinol obvykle pou\u017e\u00edv\u00e1 v koncentraci 0,5 a\u017e 2 %. <\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Terapeutick\u00e9 pou\u017eit\u00ed kyseliny retinov\u00e9<\/h1>\n\n\n\n<p><strong>Tretinoin<\/strong>, stejn\u011b jako jeho deriv\u00e1t <strong>izotretinoin, je<\/strong> slou\u010denina zn\u00e1m\u00e1 svou vysokou \u00fa\u010dinnost\u00ed p\u0159i l\u00e9\u010db\u011b akn\u00e9. Kyselina retinov\u00e1 sv\u00fdm \u00fa\u010dinkem na bun\u011b\u010dnou proliferaci a diferenciaci p\u016fsob\u00ed exfolia\u010dn\u011b na odum\u0159el\u00e9 bu\u0148ky epidermis a urychluje v\u00fdm\u011bnu jej\u00edch vn\u011bj\u0161\u00edch vrstev. Krom\u011b toho reguluje procesy epiderm\u00e1ln\u00ed keratinizace a sekrece ko\u017en\u00edho mazu a m\u00e1 protiz\u00e1n\u011btliv\u00e9 \u00fa\u010dinky.   <\/p>\n\n\n\n<p>P\u0159i aplikaci na poko\u017eku v koncentraci 0,01-0,4 % je proto \u00fa\u010dinnou l\u00e9\u010dbou mladistv\u00e9ho akn\u00e9. Vzhledem k siln\u00e9mu \u00fa\u010dinku a s n\u00edm spojen\u00fdm mo\u017en\u00fdm ne\u017e\u00e1douc\u00edm \u00fa\u010dink\u016fm je v\u0161ak <strong>kyselina retinov\u00e1 zak\u00e1z\u00e1na pro pou\u017eit\u00ed v kosmetice a je dostupn\u00e1 pouze v l\u00e9c\u00edch na p\u0159edpis<\/strong> &#8211; obvykle v kombinaci s antibiotiky (klindamycin nebo erytromycin). L\u00e9\u010dba tretinoinem nebo peror\u00e1ln\u00edm izotretinoinem mus\u00ed prob\u00edhat pod l\u00e9ka\u0159sk\u00fdm dohledem.  <\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Ne\u017e\u00e1douc\u00ed \u00fa\u010dinky<\/h1>\n\n\n\n<p>Pou\u017e\u00edv\u00e1n\u00ed retinoid\u016f m\u016f\u017ee b\u00fdt bohu\u017eel spojeno s \u0159adou ne\u017e\u00e1douc\u00edch \u00fa\u010dink\u016f. P\u0159i jejich pou\u017e\u00edv\u00e1n\u00ed je d\u016fle\u017eit\u00e9 vyh\u00fdbat se prudk\u00e9mu slunci, proto\u017ee mohou p\u016fsobit jako fotosenzibiliz\u00e1tor a zvy\u0161ovat citlivost poko\u017eky na sp\u00e1len\u00ed. Mezi dal\u0161\u00ed b\u011b\u017en\u00e9 ne\u017e\u00e1douc\u00ed \u00fa\u010dinky vitaminu A na k\u016f\u017ei pat\u0159\u00ed:  <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zarudnut\u00ed k\u016f\u017ee<\/li>\n\n\n\n<li>Nadm\u011brn\u00e1 exfoliace poko\u017eky<\/li>\n\n\n\n<li>Ko\u017en\u00ed vyr\u00e1\u017eky, sv\u011bd\u011bn\u00ed a p\u00e1len\u00ed<\/li>\n\n\n\n<li>Such\u00e1 poko\u017eka<\/li>\n\n\n\n<li>Podr\u00e1\u017ed\u011bn\u00ed k\u016f\u017ee<\/li>\n<\/ul>\n\n\n\n<p>Tyto slou\u010deniny maj\u00ed tak\u00e9 prok\u00e1zan\u00e9 teratogenn\u00ed \u00fa\u010dinky &#8211; jsou toxick\u00e9 pro plod. Peror\u00e1ln\u00ed u\u017e\u00edv\u00e1n\u00ed je proto zcela kontraindikov\u00e1no u t\u011bhotn\u00fdch a koj\u00edc\u00edch \u017een. M\u011bli by se tak\u00e9 vyhnout vn\u011bj\u0161\u00edmu pou\u017e\u00edv\u00e1n\u00ed retinoid\u016f na k\u016f\u017ei kv\u016fli mo\u017enosti jejich vst\u0159eb\u00e1v\u00e1n\u00ed do krevn\u00edho ob\u011bhu.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p><strong>Bibliografia:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Bojarowicz H, P\u0142owiec A. <em>Wp\u0142yw witaminy A na kondycj\u0119 sk\u00f3ry<\/em>. Problemy Higieny i Epidemiologii (2010), 91(3): 352-356. <\/li>\n\n\n\n<li>Marona H, Gunia A, P\u0119kla E. <em>Retinoidy \u2013 rola w farmakoterapii w aspekcie kom\u00f3rkowego mechanizmu dzia\u0142ania<\/em>. Farmacja Polska (2010), 66(3): 187-192. <\/li>\n\n\n\n<li>Zasada M, Adamczyk A. <em>Witamina A. Budowa i Mechanizm dzia\u0142ania<\/em>. Kosmetologia Estetyczna (2018), 5(7): 517-520. <\/li>\n\n\n\n<li>https:\/\/dermatic.pl\/aestheticbusiness\/2021\/09\/01\/formy-witaminy-a-retinol-retinal-kwas-retinowy\/<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Term\u00edn vitamin A ozna\u010duje l\u00e1tky s podobnou strukturou a biologickou aktivitou. Tyto slou\u010deniny, zn\u00e1m\u00e9 tak\u00e9 jako retinoidy, jsou p\u0159\u00edrodn\u00ed nebo syntetick\u00e9 deriv\u00e1ty retinolu.  <\/p>\n","protected":false},"author":15,"featured_media":17327,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1873,1874],"tags":[],"class_list":["post-18910","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kosmeticke-suroviny","category-vitaminy"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Kyselina retinov\u00e1 a retinol - rozd\u00edly a \u00fa\u010dinky<\/title>\n<meta name=\"description\" content=\"Term\u00edn vitamin A ozna\u010duje l\u00e1tky s podobnou strukturou a biologickou aktivitou. Tyto slou\u010deniny, zn\u00e1m\u00e9 tak\u00e9 jako retinoidy, jsou p\u0159\u00edrodn\u00ed nebo syntetick\u00e9 deriv\u00e1ty retinolu.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/naturalpoland.com\/cs\/artykuly\/kosmeticke-suroviny\/kyselina-retinova-v-kosmetice\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kyselina retinov\u00e1 a retinol - rozd\u00edly a \u00fa\u010dinky\" \/>\n<meta property=\"og:description\" content=\"Term\u00edn vitamin A ozna\u010duje l\u00e1tky s podobnou strukturou a biologickou aktivitou. 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