{"id":36663,"date":"2026-11-01T11:18:41","date_gmt":"2026-11-01T10:18:41","guid":{"rendered":"https:\/\/www.certifiedcosmetics.com\/blog\/uncategorized-cs\/co-je-to-bezpecnostni-rezerva-v-kosmetice\/"},"modified":"2026-11-01T11:18:41","modified_gmt":"2026-11-01T10:18:41","slug":"co-je-to-bezpecnostni-rezerva-v-kosmetice","status":"publish","type":"post","link":"https:\/\/www.certifiedcosmetics.com\/cs\/blog\/bezpecnost-kosmetickych-pripravku\/co-je-to-bezpecnostni-rezerva-v-kosmetice\/","title":{"rendered":"Co je to bezpe\u010dnostn\u00ed rezerva v kosmetice?"},"content":{"rendered":"
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\"\"Podle na\u0159\u00edzen\u00ed (ES) \u010d. 1223\/2009<\/span><\/span>mus\u00ed ka\u017ed\u00fd kosmetick\u00fd p\u0159\u00edpravek uv\u00e1d\u011bn\u00fd na trh EU proj\u00edt form\u00e1ln\u00edm posouzen\u00edm bezpe\u010dnosti<\/a>, kter\u00e9 prok\u00e1\u017ee, \u017ee je bezpe\u010dn\u00fd pro lidsk\u00e9 zdrav\u00ed za norm\u00e1ln\u00edch a rozumn\u011b p\u0159edv\u00eddateln\u00fdch podm\u00ednek pou\u017eit\u00ed.<\/strong><\/p>\n

Jedn\u00edm z nejd\u016fle\u017eit\u011bj\u0161\u00edch pojm\u016f v r\u00e1mci tohoto hodnocen\u00ed je bezpe\u010dnostn\u00ed rezerva (MoS)<\/strong>.<\/p>\n

A\u010dkoli se tento pojem m\u016f\u017ee jevit jako velmi odborn\u00fd, princip, na kter\u00e9m je zalo\u017een, je pom\u011brn\u011b jednoduch\u00fd: MoS pom\u00e1h\u00e1 ur\u010dit, zda expozice spot\u0159ebitele ur\u010dit\u00e9 slo\u017ece z\u016fst\u00e1v\u00e1 dostate\u010dn\u011b pod \u00farovn\u00ed, kter\u00e1 je spojov\u00e1na se \u0161kodliv\u00fdmi \u00fa\u010dinky.<\/p>\n

Jedn\u00e1 se o jeden z n\u00e1stroj\u016f, kter\u00e9 odborn\u00edci na bezpe\u010dnost pou\u017e\u00edvaj\u00ed k posouzen\u00ed, zda lze kosmetickou slo\u017eku v koncentraci pou\u017eit\u00e9 v p\u0159\u00edpravku pova\u017eovat za bezpe\u010dnou.<\/p>\n

Pro\u010d je bezpe\u010dnostn\u00ed rezerva d\u016fle\u017eit\u00e1<\/h2>\n

Samotn\u00e9 toxikologick\u00e9 \u00fadaje je\u0161t\u011b automaticky neznamenaj\u00ed, \u017ee je dan\u00e1 slo\u017eka v kosmetick\u00e9m p\u0159\u00edpravku bezpe\u010dn\u00e1.<\/p>\n

Slo\u017eka m\u016f\u017ee v laboratorn\u00edch studi\u00edch p\u0159i vysok\u00fdch d\u00e1vk\u00e1ch vykazovat ne\u017e\u00e1douc\u00ed \u00fa\u010dinky, zat\u00edmco p\u0159i skute\u010dn\u00e9m pou\u017eit\u00ed v kosmetice z\u016fst\u00e1v\u00e1 zcela bezpe\u010dn\u00e1, proto\u017ee expozice spot\u0159ebitele je mnohem ni\u017e\u0161\u00ed.<\/p>\n

Bezpe\u010dnostn\u00ed rozp\u011bt\u00ed slou\u017e\u00ed k kvantifikaci tohoto rozd\u00edlu mezi:<\/p>\n

    \n
  • d\u00e1vkou, p\u0159i kter\u00e9 byly v toxikologick\u00fdch studi\u00edch pozorov\u00e1ny ne\u017e\u00e1douc\u00ed \u00fa\u010dinky<\/li>\n
  • odhadovan\u00fdm mno\u017estv\u00edm, kter\u00e9mu jsou spot\u0159ebitel\u00e9 p\u0159i pou\u017e\u00edv\u00e1n\u00ed kosmetiky skute\u010dn\u011b vystaveni<\/li>\n<\/ul>\n

    V praxi plat\u00ed, \u017ee \u010d\u00edm vy\u0161\u0161\u00ed je hodnota MoS, t\u00edm v\u011bt\u0161\u00ed je bezpe\u010dnostn\u00ed rezerva mezi skute\u010dnou expozic\u00ed a potenci\u00e1ln\u011b \u0161kodliv\u00fdmi hladinami.<\/p>\n

    Jak se vypo\u010d\u00edt\u00e1v\u00e1 bezpe\u010dnostn\u00ed rezerva<\/h2>\n

    MoS se obvykle vypo\u010d\u00edt\u00e1v\u00e1 porovn\u00e1n\u00edm dvou hodnot:<\/p>\n

      \n
    • Hodnota NOAEL<\/strong> (No Observed Adverse Effect Level \u2013 \u00farove\u0148, p\u0159i kter\u00e9 nebyly pozorov\u00e1ny \u017e\u00e1dn\u00e9 nep\u0159\u00edzniv\u00e9 \u00fa\u010dinky), z\u00edskan\u00e1 z toxikologick\u00fdch studi\u00ed<\/li>\n
    • Syst\u00e9mov\u00e1 expozi\u010dn\u00ed d\u00e1vka (SED)<\/strong>, kter\u00e1 odhaduje, jak\u00e9mu mno\u017estv\u00ed l\u00e1tky jsou spot\u0159ebitel\u00e9 vystaveni p\u0159i b\u011b\u017en\u00e9m pou\u017e\u00edv\u00e1n\u00ed<\/li>\n<\/ul>\n

      Zjednodu\u0161en\u00fd vzorec zn\u00ed:<\/p>\n

      Bezpe\u010dnostn\u00ed rezerva = NOAEL \u00f7 syst\u00e9mov\u00e1 expozi\u010dn\u00ed d\u00e1vka<\/h4>\n

      Tento v\u00fdpo\u010det pom\u00e1h\u00e1 odborn\u00edk\u016fm na bezpe\u010dnost posoudit, zda m\u00edra pou\u017eit\u00ed dan\u00e9 slo\u017eky v souladu s ur\u010den\u00fdm \u00fa\u010delem poskytuje p\u0159ijatelnou bezpe\u010dnostn\u00ed rezervu.<\/p>\n

      Podle evropsk\u00fdch pokyn\u016f se bezpe\u010dnostn\u00ed rezerva vy\u0161\u0161\u00ed ne\u017e 100 obecn\u011b pova\u017euje za p\u0159ijatelnou pro kosmetick\u00e9 slo\u017eky.<\/p>\n

      Tato prahov\u00e1 hodnota je navr\u017eena tak, aby zohled\u0148ovala bezpe\u010dnostn\u00ed faktory, kter\u00e9 berou v \u00favahu rozd\u00edly mezi laboratorn\u00edmi testovac\u00edmi podm\u00ednkami a skute\u010dnou expozic\u00ed u lid\u00ed, stejn\u011b jako individu\u00e1ln\u00ed rozd\u00edly mezi jednotlivci.<\/p>\n

      Je-li vypo\u010d\u00edtan\u00e1 hodnota bezpe\u010dnostn\u00ed rezervy (MoS) p\u0159\u00edli\u0161 n\u00edzk\u00e1, m\u016f\u017ee b\u00fdt nutn\u00e9 sn\u00ed\u017eit koncentraci dan\u00e9 slo\u017eky, a to i v p\u0159\u00edpad\u011b, \u017ee je tato slo\u017eka sama o sob\u011b podle na\u0159\u00edzen\u00ed z\u00e1konn\u011b povolena.<\/p>\n

      \n

      Expozice hraje kl\u00ed\u010dovou roli<\/h2>\n

      Bezpe\u010dnostn\u00ed rezerva do zna\u010dn\u00e9 m\u00edry z\u00e1vis\u00ed na m\u00ed\u0159e expozice spot\u0159ebitel\u016f.<\/p>\n

      V\u00fdpo\u010det m\u00edry expozice ovliv\u0148uje n\u011bkolik faktor\u016f, mezi n\u011b\u017e pat\u0159\u00ed:<\/p>\n

        \n
      • Zda se jedn\u00e1 o produkt, kter\u00fd se oplachuje, nebo o produkt, kter\u00fd se nenech\u00e1v\u00e1 p\u016fsobit<\/li>\n
      • \u010cetnost aplikace<\/li>\n
      • Mno\u017estv\u00ed aplikovan\u00e9ho p\u0159\u00edpravku<\/li>\n
      • Plocha exponovan\u00e9 k\u016f\u017ee<\/li>\n
      • Rychlost absorpce k\u016f\u017e\u00ed<\/li>\n<\/ul>\n

        Nap\u0159\u00edklad stejn\u00e1 slo\u017eka m\u016f\u017ee vykazovat velmi odli\u0161n\u00e9 hodnoty MoS v z\u00e1vislosti na tom, zda je pou\u017eita v \u0161amponu, t\u011blov\u00e9m ml\u00e9ku nebo ple\u0165ov\u00e9m s\u00e9ru.<\/p>\n

        Pr\u00e1v\u011b proto se p\u0159i posuzov\u00e1n\u00ed bezpe\u010dnosti<\/strong> kosmetick\u00fdch p\u0159\u00edpravk\u016f v\u017edy bere v \u00favahu hotov\u00fd v\u00fdrobek a podm\u00ednky, za kter\u00fdch je ur\u010den k pou\u017eit\u00ed, a nikoli jednotliv\u00e9 slo\u017eky samy o sob\u011b.<\/strong><\/p>\n

        \n

        Bezpe\u010dnostn\u00ed rezerva je sou\u010d\u00e1st\u00ed \u0161ir\u0161\u00edho hodnocen\u00ed bezpe\u010dnosti<\/h2>\n

        A\u010dkoli je MoS \u00fast\u0159edn\u00ed sou\u010d\u00e1st\u00ed posuzov\u00e1n\u00ed bezpe\u010dnosti kosmetick\u00fdch p\u0159\u00edpravk\u016f, nen\u00ed to jedin\u00fd faktor, kter\u00fd se p\u0159i hodnocen\u00ed shody zohled\u0148uje.<\/p>\n

        K celkov\u00e9 bezpe\u010dnosti v\u00fdrobku p\u0159isp\u00edvaj\u00ed tak\u00e9 dal\u0161\u00ed aspekty, jako je mikrobiologick\u00e1 kvalita, ne\u010distoty, stabilita, kompatibilita obal\u016f a povinnosti t\u00fdkaj\u00edc\u00ed se ozna\u010dov\u00e1n\u00ed.<\/p>\n

        Bezpe\u010dnostn\u00ed rezervu je proto t\u0159eba ch\u00e1pat jako jeden z prvk\u016f \u0161ir\u0161\u00edho v\u011bdeck\u00e9ho a regula\u010dn\u00edho r\u00e1mce<\/strong>, jeho\u017e c\u00edlem je ochrana zdrav\u00ed spot\u0159ebitel\u016f.<\/p>\n

        V r\u00e1mci syst\u00e9mu pro kosmetick\u00e9 p\u0159\u00edpravky v EU se bezpe\u010dnost prokazuje na z\u00e1klad\u011b zdokumentovan\u00fdch d\u016fkaz\u016f, posouzen\u00ed expozice a toxikologick\u00e9ho hodnocen\u00ed \u2013 nikoli pouze v\u00fdb\u011brem slo\u017eek.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

        Podle na\u0159\u00edzen\u00ed (ES) \u010d. 1223\/2009mus\u00ed ka\u017ed\u00fd kosmetick\u00fd p\u0159\u00edpravek uv\u00e1d\u011bn\u00fd na trh EU proj\u00edt form\u00e1ln\u00edm posouzen\u00edm bezpe\u010dnosti, kter\u00e9 prok\u00e1\u017ee, \u017ee je bezpe\u010dn\u00fd pro lidsk\u00e9 zdrav\u00ed za norm\u00e1ln\u00edch a rozumn\u011b p\u0159edv\u00eddateln\u00fdch podm\u00ednek pou\u017eit\u00ed. Jedn\u00edm z nejd\u016fle\u017eit\u011bj\u0161\u00edch pojm\u016f v r\u00e1mci tohoto hodnocen\u00ed je bezpe\u010dnostn\u00ed rezerva (MoS). A\u010dkoli se tento pojem m\u016f\u017ee jevit jako velmi odborn\u00fd, princip, na kter\u00e9m…<\/p>\n","protected":false},"author":294,"featured_media":36665,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4168],"tags":[],"class_list":["post-36663","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bezpecnost-kosmetickych-pripravku"],"yoast_head":"\nCo je to bezpe\u010dnostn\u00ed rezerva v kosmetice? - Certified Cosmetics<\/title>\n<meta name=\"description\" content=\"Zjist\u011bte, co znamen\u00e1 pojem \u201ebezpe\u010dnostn\u00ed rezerva\u201c (MoS) v kosmetice, jak se vypo\u010d\u00edt\u00e1v\u00e1 a pro\u010d je nezbytn\u00e1 pro posuzov\u00e1n\u00ed bezpe\u010dnosti kosmetick\u00fdch p\u0159\u00edpravk\u016f a dodr\u017eov\u00e1n\u00ed p\u0159edpis\u016f.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.certifiedcosmetics.com\/cs\/blog\/bezpecnost-kosmetickych-pripravku\/co-je-to-bezpecnostni-rezerva-v-kosmetice\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Co je to bezpe\u010dnostn\u00ed rezerva v kosmetice?\" \/>\n<meta property=\"og:description\" content=\"Zjist\u011bte, co znamen\u00e1 pojem \u201ebezpe\u010dnostn\u00ed rezerva\u201c (MoS) v kosmetice, jak se vypo\u010d\u00edt\u00e1v\u00e1 a pro\u010d je nezbytn\u00e1 pro posuzov\u00e1n\u00ed bezpe\u010dnosti kosmetick\u00fdch p\u0159\u00edpravk\u016f a dodr\u017eov\u00e1n\u00ed p\u0159edpis\u016f.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.certifiedcosmetics.com\/cs\/blog\/bezpecnost-kosmetickych-pripravku\/co-je-to-bezpecnostni-rezerva-v-kosmetice\/\" \/>\n<meta property=\"og:site_name\" content=\"Certified Cosmetics\" \/>\n<meta property=\"article:published_time\" content=\"2026-11-01T10:18:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.certifiedcosmetics.com\/wp-content\/uploads\/2026\/05\/MoS.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Angela\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napsal(a)\" \/>\n\t<meta name=\"twitter:data1\" content=\"Angela\" \/>\n\t<meta name=\"twitter:label2\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.certifiedcosmetics.com\\\/cs\\\/blog\\\/bezpecnost-kosmetickych-pripravku\\\/co-je-to-bezpecnostni-rezerva-v-kosmetice\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.certifiedcosmetics.com\\\/cs\\\/blog\\\/bezpecnost-kosmetickych-pripravku\\\/co-je-to-bezpecnostni-rezerva-v-kosmetice\\\/\"},\"author\":{\"name\":\"Angela\",\"@id\":\"https:\\\/\\\/www.certifiedcosmetics.com\\\/cs\\\/#\\\/schema\\\/person\\\/2620f9d56cb0c867784edb68de06746c\"},\"headline\":\"Co je to bezpe\u010dnostn\u00ed rezerva v kosmetice?\",\"datePublished\":\"2026-11-01T10:18:41+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.certifiedcosmetics.com\\\/cs\\\/blog\\\/bezpecnost-kosmetickych-pripravku\\\/co-je-to-bezpecnostni-rezerva-v-kosmetice\\\/\"},\"wordCount\":806,\"publisher\":{\"@id\":\"https:\\\/\\\/www.certifiedcosmetics.com\\\/cs\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.certifiedcosmetics.com\\\/cs\\\/blog\\\/bezpecnost-kosmetickych-pripravku\\\/co-je-to-bezpecnostni-rezerva-v-kosmetice\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.certifiedcosmetics.com\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/MoS.jpg\",\"articleSection\":[\"Bezpe\u010dnost kosmetick\u00fdch p\u0159\u00edpravk\u016f\"],\"inLanguage\":\"cs\",\"copyrightYear\":\"2026\",\"copyrightHolder\":{\"@id\":\"https:\\\/\\\/www.certifiedcosmetics.com\\\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.certifiedcosmetics.com\\\/cs\\\/blog\\\/bezpecnost-kosmetickych-pripravku\\\/co-je-to-bezpecnostni-rezerva-v-kosmetice\\\/\",\"url\":\"https:\\\/\\\/www.certifiedcosmetics.com\\\/cs\\\/blog\\\/bezpecnost-kosmetickych-pripravku\\\/co-je-to-bezpecnostni-rezerva-v-kosmetice\\\/\",\"name\":\"Co je to bezpe\u010dnostn\u00ed rezerva v kosmetice? 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