{"id":25155,"date":"2023-01-23T12:37:56","date_gmt":"2023-01-23T11:37:56","guid":{"rendered":"https:\/\/schrader-institute.de\/praxiswissen\/compatibility\/"},"modified":"2023-08-01T11:28:28","modified_gmt":"2023-08-01T10:28:28","slug":"compatibility","status":"publish","type":"praxiswissen","link":"https:\/\/schrader-institute.de\/en\/knowledge\/compatibility\/","title":{"rendered":"Compatibility"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"25155\" class=\"elementor elementor-25155 elementor-25149\" data-elementor-post-type=\"praxiswissen\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-026e301 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"026e301\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bab1d16\" data-id=\"bab1d16\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-12b01a1 elementor-widget elementor-widget-heading\" data-id=\"12b01a1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Epicutaneous Test, Photopatch Test \/ Flex Wash Test<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-83aa742 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"83aa742\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d1933f7\" data-id=\"d1933f7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d05752e elementor-widget elementor-widget-text-editor\" data-id=\"d05752e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Cosmetics are normally used daily and over long periods. That is why good skin compatibility is particularly important \u2013 especially if they are used on sensitive skin areas. The following aspects are important from a dermatological point of view: skin irritation (local toxicity), contact allergy, photosensitization and comedogenicity. Moreover, subjective reactions such as stinging, burning or itching can occur after application of a cosmetic and make acceptance questionable (from: K. Schrader (1989) Grundlagen und Rezepturen der Kosmetika. H\u00fcthig, Heidelberg).<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-75fe932 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"75fe932\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-376d74e\" data-id=\"376d74e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3dc360d elementor-widget elementor-widget-text-editor\" data-id=\"3dc360d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Epicutaneous Test<\/strong><\/p>\n<p>The single application occlusive patch test (Epicutaneous test) is a dermatologically controlled study that tests for skin irritation (local toxicity). The test product is fixed in place on the skin under occlusive conditions with a patch, usually on the back, where it is left for up to 48 hours. After removal of the patch 24 hours or 48 hours later, a dermatologist checks for and assesses adverse skin reactions.<br \/>Redness, scaling, blisters or pustules indicate an irritancy potential of the test product. The risk of developing an allergy cannot, however, be determined with this test.<br \/>Even more sensitive than the single patch test is the repeated patch test, where the test product is applied repeatedly at defined intervals to the skin with an adhesive patch and evaluated.<br \/>Besides the occlusive application commonly used for leave on products, open application allows continuous observation of adverse skin reactions and is used mostly for rinse off products as well as for hair colors, bleaches or depilatories.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-baeef26 elementor-widget elementor-widget-text-editor\" data-id=\"baeef26\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><strong>Photopatch Test \/ Flex Wash Test<\/strong><\/p>\n<p>Other models for studying the safety of cosmetics are the photopatch test and the flex or forearm wash test.<br \/>To study phototoxic reactions to a cosmetic the skin is exposed to a defined dose of UVA and UVB radiation after application of the test product. The further procedure is analogous to that of the single occlusive patch test.<br \/>The flex wash test is used primarily for surfactant products findet der Ellenbeugenwaschtest to test the skin compatibility.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Epicutaneous Test, Photopatch Test \/ Flex Wash Test &#8211; Cosmetics are normally used daily and over long periods. That is why good skin compatibility is particularly important \u2013 especially if they are used&#8230;<\/p>\n","protected":false},"featured_media":23413,"parent":0,"template":"","class_list":["post-25155","praxiswissen","type-praxiswissen","status-publish","has-post-thumbnail","hentry","leistungen-testing-hair"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Compatibility - Institute Dr. Schrader<\/title>\n<meta name=\"description\" content=\"Institute Dr. Schrader - Compatibility - Cosmetics are usually used on a daily basis and for long periods...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/schrader-institute.de\/en\/knowledge\/compatibility\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Compatibility - Institute Dr. Schrader\" \/>\n<meta property=\"og:description\" content=\"Institute Dr. Schrader - Compatibility - Cosmetics are usually used on a daily basis and for long periods...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/schrader-institute.de\/en\/knowledge\/compatibility\/\" \/>\n<meta property=\"og:site_name\" content=\"Institute Dr. Schrader\" \/>\n<meta property=\"article:modified_time\" content=\"2023-08-01T10:28:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/schrader-institute.de\/wp-content\/uploads\/2022\/12\/schrader_4840a-1-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1628\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/schrader-institute.de\\\/en\\\/knowledge\\\/compatibility\\\/\",\"url\":\"https:\\\/\\\/schrader-institute.de\\\/en\\\/knowledge\\\/compatibility\\\/\",\"name\":\"Compatibility - Institute Dr. Schrader\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/schrader-institute.de\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/schrader-institute.de\\\/en\\\/knowledge\\\/compatibility\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/schrader-institute.de\\\/en\\\/knowledge\\\/compatibility\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/schrader-institute.de\\\/wp-content\\\/uploads\\\/2022\\\/12\\\/schrader_4840a-1-scaled.jpg\",\"datePublished\":\"2023-01-23T11:37:56+00:00\",\"dateModified\":\"2023-08-01T10:28:28+00:00\",\"description\":\"Institute Dr. Schrader - Compatibility - Cosmetics are usually used on a daily basis and for long periods...\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/schrader-institute.de\\\/en\\\/knowledge\\\/compatibility\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/schrader-institute.de\\\/en\\\/knowledge\\\/compatibility\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/schrader-institute.de\\\/en\\\/knowledge\\\/compatibility\\\/#primaryimage\",\"url\":\"https:\\\/\\\/schrader-institute.de\\\/wp-content\\\/uploads\\\/2022\\\/12\\\/schrader_4840a-1-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/schrader-institute.de\\\/wp-content\\\/uploads\\\/2022\\\/12\\\/schrader_4840a-1-scaled.jpg\",\"width\":2560,\"height\":1628,\"caption\":\"Kosmetika werden in der Regel t\u00e4glich und \u00fcber lange Zeitr\u00e4ume angewendet. 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