{"id":1940,"date":"2025-12-25T20:22:00","date_gmt":"2025-12-25T19:22:00","guid":{"rendered":"https:\/\/www.laboratoireslelegard.com\/?post_type=product&#038;p=1940"},"modified":"2025-12-25T20:25:12","modified_gmt":"2025-12-25T19:25:12","slug":"test-hydratation","status":"publish","type":"product","link":"https:\/\/www.laboratoireslelegard.com\/fr_ch\/product-2\/test-hydratation\/","title":{"rendered":"Test d\u2019hydratation\u202f: mesure objective de la capacit\u00e9 hydratante d\u2019un cosm\u00e9tique"},"content":{"rendered":"<div data-elementor-type=\"product-post\" data-elementor-id=\"1940\" class=\"elementor elementor-1940\" data-elementor-post-type=\"product\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-06bf5d0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"06bf5d0\" data-element_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-6f2a6e1\" data-id=\"6f2a6e1\" data-element_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-7d75f8c elementor-widget elementor-widget-text-editor\" data-id=\"7d75f8c\" data-element_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<div class=\"w-full\"><div class=\"progressive-markdown-content\"><div class=\"w-full\"><div class=\"progressive-markdown-content\"><div class=\"content-visibility-auto\"><div class=\"content-visibility-auto\"><p><strong>Test d\u2019hydratation\u202f: mesure objective de la capacit\u00e9 hydratante d\u2019un cosm\u00e9tique<\/strong><\/p><\/div><div class=\"content-visibility-auto\"><p>Le test d\u2019hydratation est la r\u00e9f\u00e9rence scientifique pour quantifier la capacit\u00e9 d\u2019une formule \u00e0 augmenter et \u00e0 maintenir le niveau d\u2019eau dans la couche superficielle de la peau, le stratum corneum. L\u2019instrument utilis\u00e9, le corn\u00e9om\u00e8tre, mesure la conductance \u00e9lectrique du cuir chevelu\u202f; plus la conductance est \u00e9lev\u00e9e, plus le contenu en eau du stratum corneum est important. Cette m\u00e9thode, reconnue par les autorit\u00e9s suisses (OCos\/OSAV) et europ\u00e9ennes (CE\u202f1223\/2009), fournit des donn\u00e9es objectives indispensables pour \u00e9tayer les all\u00e9gations d\u2019hydratation.<\/p><\/div><div class=\"content-visibility-auto\"><p>Le protocole commence par la s\u00e9lection d\u2019un panel de volontaires repr\u00e9sentatif du public cible (\u00e2ge, type de peau, sensibilit\u00e9). Chaque participant re\u00e7oit des instructions pr\u00e9cises\u202f: nettoyer la zone d\u2019\u00e9tude, \u00e9viter tout produit concurrent pendant 24\u202fheures, puis appliquer une quantit\u00e9 d\u00e9finie de la cr\u00e8me ou du s\u00e9rum sur une zone de 2\u202fcm\u00b2. Avant l\u2019application, le corn\u00e9om\u00e8tre enregistre la valeur de base (hydration initiale). Imm\u00e9diatement apr\u00e8s l\u2019application, une seconde mesure est prise afin d\u2019\u00e9valuer l\u2019effet instantan\u00e9. Des mesures suppl\u00e9mentaires sont r\u00e9alis\u00e9es \u00e0 30\u202fminutes, 2\u202fheures, 6\u202fheures, puis \u00e0 24\u202fheures et, si n\u00e9cessaire, \u00e0 48\u202fheures.<\/p><\/div><div class=\"content-visibility-auto\"><p>Chaque mesure est compar\u00e9e \u00e0 une zone t\u00e9moin laiss\u00e9e sans traitement, ce qui permet de calculer le gain d\u2019hydratation attribuable uniquement au produit. Le suivi longitudinal montre non seulement le pic d\u2019hydratation, mais aussi la dur\u00e9e pendant laquelle le niveau d\u2019eau reste sup\u00e9rieur \u00e0 la zone t\u00e9moin. Un produit qui maintient un gain d\u2019au moins\u202f15\u202f% pendant 24\u202fheures peut l\u00e9gitimement revendiquer \u00ab\u202fhydratation prolong\u00e9e\u202f\u00bb, tandis qu\u2019un gain de 30\u202f% \u00e0 30\u202fminutes soutenu pendant plusieurs heures justifie l\u2019all\u00e9gation \u00ab\u202feffet hydratant imm\u00e9diat\u202f\u00bb.<\/p><\/div><div class=\"content-visibility-auto\"><p>Les r\u00e9sultats sont pr\u00e9sent\u00e9s sous forme de graphiques de variation temporelle et de statistiques descriptives (moyenne, \u00e9cart\u2011type). Tous les param\u00e8tres sont consign\u00e9s dans le Dossier d\u2019Information Produit (DIP) ou le Product Information File (PIF), garantissant la tra\u00e7abilit\u00e9 et la conformit\u00e9 aux exigences r\u00e9glementaires. Cette documentation solide rassure les autorit\u00e9s, les distributeurs et les consommateurs quant \u00e0 la v\u00e9racit\u00e9 des promesses d\u2019hydratation.<\/p><\/div><div class=\"content-visibility-auto\"><p>En combinant la rigueur du corn\u00e9om\u00e8tre avec un protocole d\u2019application r\u00e9aliste, le test d\u2019hydratation offre une preuve scientifique fiable, indispensable pour positionner un soin sur les march\u00e9s suisse, europ\u00e9en et britannique.<\/p><\/div><br \/><hr \/><\/div><\/div><\/div><\/div><\/div>\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>","protected":false},"excerpt":{"rendered":"<p>Test d\u2019hydratation\u202f: mesure objective de la capacit\u00e9 hydratante d\u2019un cosm\u00e9tique Le test d\u2019hydratation est la r\u00e9f\u00e9rence scientifique pour quantifier la capacit\u00e9 d\u2019une formule \u00e0 augmenter et \u00e0 maintenir le niveau d\u2019eau dans la couche superficielle de la peau, le stratum corneum. L\u2019instrument utilis\u00e9, le corn\u00e9om\u00e8tre, mesure la conductance \u00e9lectrique du cuir chevelu\u202f; plus la conductance [&hellip;]<\/p>","protected":false},"featured_media":1740,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[152],"product_tag":[113,116,112,114,115,117],"class_list":["post-1940","product","type-product","status-publish","has-post-thumbnail","product_cat-tests","product_tag-activite","product_tag-activity","product_tag-analyse","product_tag-eau","product_tag-micro-organismes","product_tag-water","first","instock","shipping-taxable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Test d\u2019hydratation\u202f: capacit\u00e9 hydratante d\u2019un cosm\u00e9tique<\/title>\n<meta name=\"description\" content=\"Test d\u2019hydratation\u202f: mesure objective avec corn\u00e9om\u00e8tre, prouve gain d\u2019eau et 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