{"id":39779,"date":"2021-03-01T13:19:20","date_gmt":"2021-03-01T18:19:20","guid":{"rendered":"https:\/\/pro.dermalogica.ca\/article\/addressing-hyperpigmentation\/"},"modified":"2021-03-01T13:19:20","modified_gmt":"2021-03-01T18:19:20","slug":"addressing-hyperpigmentation","status":"publish","type":"article","link":"https:\/\/pro.dermalogica.ca\/fr\/article\/addressing-hyperpigmentation\/","title":{"rendered":"addressing hyperpigmentation"},"content":{"rendered":"<h2>traiter l&rsquo;hyperpigmentation<\/h2>\n<p>De nombreux chercheurs travaillent \u00e0 l&rsquo;inhibition de l&rsquo;activit\u00e9 de la tyrosinase et \u00e0 la pr\u00e9vention de l&rsquo;hyperpigmentation. Ils ont d\u00e9couvert que les r\u00e9sultats peuvent \u00eatre amplifi\u00e9s par l&rsquo;utilisation de plusieurs actifs qui utilisent diff\u00e9rents modes d&rsquo;action pour inhiber la production de m\u00e9lanine. <\/p>\n<p>La combinaison des modes d&rsquo;action suivants peut contribuer \u00e0 am\u00e9liorer les r\u00e9sultats. En outre, l&rsquo;utilisation d&rsquo;ingr\u00e9dients qui diffusent la lumi\u00e8re, tels que le dioxyde de titane, est un moyen efficace d&rsquo;\u00e9quilibrer rapidement l&rsquo;apparence d&rsquo;une pigmentation in\u00e9gale, tandis que d&rsquo;autres actifs agissent sur la voie de synth\u00e8se de la m\u00e9lanine. <\/p>\n<p><strong>1. inhiber l&rsquo;activit\u00e9 de la tyrosinase<\/strong><\/p>\n<p>Comme d\u00e9crit dans la section pr\u00e9c\u00e9dente, la tyrosinase est une enzyme cl\u00e9 qui convertit l&rsquo;acide amin\u00e9 tyrosine en m\u00e9lanine &#8211; l&rsquo;inhibition de son activit\u00e9 peut donc contribuer \u00e0 r\u00e9duire la production de m\u00e9lanine. L&rsquo;hexylr\u00e9sorcinol est un actif puissant qui peut se lier directement \u00e0 la tyrosinase et inhiber son activit\u00e9. L&rsquo;<strong>hexylr\u00e9sorcinol<\/strong> peut \u00e9galement stimuler la synth\u00e8se du glutathion, un antioxydant naturel pr\u00e9sent dans la peau qui contribue \u00e0 r\u00e9duire l&rsquo;activit\u00e9 de la tyrosinase. <strong>Le cassis,<\/strong> riche en om\u00e9ga 6 et 3, contribue \u00e9galement \u00e0 diminuer l&rsquo;action de la tyrosinase. <\/p>\n<p><strong>2. bloquer le transfert des m\u00e9lanosomes vers les k\u00e9ratinocytes<\/strong><\/p>\n<p>On a constat\u00e9 que la <strong>niacinamide (vitamine B3)<\/strong> r\u00e9duit de mani\u00e8re significative l&rsquo;hyperpigmentation en inhibant le transfert des m\u00e9lanosomes des m\u00e9lanocytes vers les k\u00e9ratinocytes.<\/p>\n<p><strong>3. Diminuer la production de tyrosinase<\/strong><\/p>\n<p>La diminution de la quantit\u00e9 de tyrosinase signifie que moins d&rsquo;enzymes seront disponibles pour initier le cycle de production de m\u00e9lanine. <strong>La fleur de pivoine,<\/strong> riche en Paeonol (un composant ph\u00e9nolique), est capable de diminuer la production de Tyrosinase.<\/p>\n<p><strong>4. D\u00e9gradation de la m\u00e9lanine<\/strong><\/p>\n<p>La m\u00e9lanine \u00e9tant une prot\u00e9ine, elle peut \u00eatre d\u00e9grad\u00e9e par certaines enzymes &#8211; formant un complexe de couleur moins intense. Le <strong>champignon shiitake<\/strong> a une action biocatalytique et est capable de d\u00e9composer le pigment m\u00e9lanique, r\u00e9duisant ainsi l&rsquo;intensit\u00e9 des zones hyperpigment\u00e9es. Il est \u00e9galement riche en b\u00eata-glucanes qui apportent des b\u00e9n\u00e9fices anti-inflammatoires et antioxydants pour aider \u00e0 combattre l&rsquo;hyperpigmentation. <\/p>\n<p><strong>5. Protection contre la pollution<\/strong><\/p>\n<p>Les particules de pollution peuvent se loger dans la peau et oxyder les tissus environnants, entra\u00eenant des dommages dus aux radicaux libres et une pigmentation in\u00e9gale. <strong>Les polym\u00e8res filmog\u00e8nes,<\/strong> associ\u00e9s \u00e0 des d\u00e9riv\u00e9s d&rsquo;<strong>acides amin\u00e9s<\/strong> sp\u00e9cifiques, peuvent former un bouclier protecteur emp\u00eachant l&rsquo;adh\u00e9sion des polluants \u00e0 la peau, r\u00e9duisant ainsi les taches brunes induites par la pollution.<\/p>\n<p><strong>6. Neutraliser les radicaux libres<\/strong><\/p>\n<p>Les antioxydants sont l&rsquo;une des cl\u00e9s de la lutte contre l&rsquo;hyperpigmentation. L&rsquo;ashwagandha, \u00e9galement connu sous le nom de ginseng indien, est un puissant antioxydant dont il a \u00e9t\u00e9 prouv\u00e9 qu&rsquo;il neutralise les radicaux libres. <\/p>\n<p><strong>g\u00e9rer les attentes lors du traitement de l&rsquo;hyperpigmentation<\/strong><\/p>\n<p>L&rsquo;enzyme Tyrosinase catalyse deux r\u00e9actions importantes de la m\u00e9lanog\u00e9n\u00e8se. C&rsquo;est pourquoi l&rsquo;inhibition de la tyrosinase est un objectif cl\u00e9 pour les chercheurs qui cherchent \u00e0 traiter les taches sombres. Comme les cellules cutan\u00e9es hyperpigment\u00e9es doivent remonter \u00e0 la surface et se d\u00e9tacher, m\u00eame les traitements les plus avanc\u00e9s mettent un certain temps \u00e0 donner des r\u00e9sultats. <\/p>\n<p>En outre, le type de tache fonc\u00e9e d\u00e9termine souvent la rapidit\u00e9 des r\u00e9sultats du traitement : la pigmentation induite par les hormones et l&rsquo;hyperpigmentation post-inflammatoire plus profonde sont souvent plus difficiles \u00e0 traiter que l&rsquo;hyperpigmentation induite par le soleil. \u00c9tant donn\u00e9 que le traitement prend du temps, nous vous recommandons d&rsquo;informer vos clients sur les aspects scientifiques des taches brunes pour les aider \u00e0 g\u00e9rer leurs attentes et les encourager \u00e0 respecter leur plan de traitement. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>traiter l&rsquo;hyperpigmentation De nombreux chercheurs travaillent \u00e0 l&rsquo;inhibition de l&rsquo;activit\u00e9 de la tyrosinase et \u00e0 la pr\u00e9vention de l&rsquo;hyperpigmentation. Ils ont d\u00e9couvert que les r\u00e9sultats peuvent \u00eatre amplifi\u00e9s par l&rsquo;utilisation de plusieurs actifs qui utilisent diff\u00e9rents modes d&rsquo;action pour inhiber la production de m\u00e9lanine. La combinaison des modes d&rsquo;action suivants peut contribuer \u00e0 am\u00e9liorer les [&hellip;]<\/p>\n","protected":false},"featured_media":38213,"template":"","article_category":[22],"class_list":["post-39779","article","type-article","status-publish","has-post-thumbnail","hentry","article_category-pigmentation"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>addressing hyperpigmentation - Dermalogica Canada PRO<\/title>\n<meta name=\"description\" content=\"Apprenez \u00e0 traiter l&#039;hyperpigmentation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pro.dermalogica.ca\/fr\/article\/addressing-hyperpigmentation\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"addressing hyperpigmentation - 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