{"id":33408,"date":"2025-12-12T10:48:39","date_gmt":"2025-12-12T09:48:39","guid":{"rendered":"https:\/\/www.certifiedcosmetics.com\/product\/sem categoria\/deteccao-de-hema\/"},"modified":"2025-12-12T10:48:39","modified_gmt":"2025-12-12T09:48:39","slug":"deteccao-de-hema","status":"publish","type":"product","link":"https:\/\/www.certifiedcosmetics.com\/pt-pt\/product\/verificacao-de-alegacoes-e-analise-de-ingredientes\/deteccao-de-hema\/","title":{"rendered":"Detec\u00e7\u00e3o de HEMA"},"content":{"rendered":"<p data-start=\"0\" data-end=\"375\"><strong data-start=\"4\" data-end=\"27\">O Teste de Detec\u00e7\u00e3o de HEMA<\/strong> \u00e9 uma an\u00e1lise laboratorial especializada utilizada para detetar e quantificar <strong data-start=\"93\" data-end=\"131\">o metacrilato de 2-hidroxietilo (HEMA)<\/strong> em cosm\u00e9ticos e produtos para as unhas. O HEMA \u00e9 um mon\u00f3mero de metacrilato que se encontra frequentemente em <strong data-start=\"212\" data-end=\"292\">vernizes de unhas em gel, g\u00e9is de constru\u00e7\u00e3o, camadas de base e sistemas de unhas com cura por UV\/LED<\/strong>, mas \u00e9 tamb\u00e9m um dos <strong data-start=\"336\" data-end=\"356\">sensibilizadores cut\u00e2neos<\/strong> mais conhecidos nos cosm\u00e9ticos para unhas.   <\/p>\n<h3 data-start=\"382\" data-end=\"407\">Objetivo do teste<\/h3>\n<p data-start=\"408\" data-end=\"729\">O objetivo do Teste de Detec\u00e7\u00e3o de HEMA \u00e9 determinar se um produto cont\u00e9m HEMA e, caso esteja presente, medir com precis\u00e3o a sua concentra\u00e7\u00e3o. O teste \u00e9 essencial para <strong data-start=\"579\" data-end=\"604\">o cumprimento da regulamenta\u00e7\u00e3o<\/strong>, <strong data-start=\"606\" data-end=\"625\">a seguran\u00e7a do consumidor<\/strong> e <strong data-start=\"631\" data-end=\"648\">o acesso ao mercado<\/strong>, especialmente na Uni\u00e3o Europeia, onde se aplicam restri\u00e7\u00f5es rigorosas \u00e0 utiliza\u00e7\u00e3o de HEMA.   <\/p>\n<h3 data-start=\"736\" data-end=\"763\">Contexto regulamentar<\/h3>\n<p data-start=\"764\" data-end=\"1123\">De acordo com <strong data-start=\"770\" data-end=\"814\">o Regulamento (CE) n.\u00ba 1223\/2009 da UE relativo aos produtos cosm\u00e9ticos<\/strong>, o HEMA \u00e9 classificado como uma <strong data-start=\"840\" data-end=\"864\">subst\u00e2ncia sujeita a restri\u00e7\u00f5es<\/strong> e s\u00f3 pode ser utilizado em condi\u00e7\u00f5es espec\u00edficas. \u00c9 <strong data-start=\"919\" data-end=\"983\">proibida em produtos destinados ao uso pelo consumidor na pele<\/strong>, como cosm\u00e9ticos que n\u00e3o se enxaguam, e s\u00f3 \u00e9 permitida em <strong data-start=\"1038\" data-end=\"1072\">produtos para unhas de uso profissional<\/strong> se forem cumpridas condi\u00e7\u00f5es rigorosas de rotulagem e utiliza\u00e7\u00e3o.   <\/p>\n<p data-start=\"1125\" data-end=\"1363\">Devido ao seu elevado potencial sensibilizante, as autoridades da UE monitorizam de perto os produtos para unhas no que diz respeito ao seu teor de HEMA. Os produtos em que se verifique a aus\u00eancia de HEMA ou a presen\u00e7a de quantidades excessivas desta subst\u00e2ncia podem <strong data-start=\"1313\" data-end=\"1362\">ser retirados do mercado, alvo de uma campanha de recolha ou ter a sua entrada recusada<\/strong>.   <\/p>\n<h3 data-start=\"1370\" data-end=\"1407\">Por que \u00e9 importante a dete\u00e7\u00e3o de HEMA?<\/h3>\n<ul data-start=\"1408\" data-end=\"1977\">\n<li data-start=\"1408\" data-end=\"1536\">\n<p data-start=\"1410\" data-end=\"1536\"><strong data-start=\"1410\" data-end=\"1430\">Seguran\u00e7a do consumidor:<\/strong> o HEMA \u00e9 uma das principais causas de dermatite de contacto e rea\u00e7\u00f5es al\u00e9rgicas entre os profissionais de manicura e os consumidores.<\/p>\n<\/li>\n<li data-start=\"1537\" data-end=\"1667\">\n<p data-start=\"1539\" data-end=\"1667\"><strong data-start=\"1539\" data-end=\"1565\">Conformidade regulamentar:<\/strong> Confirma se um produto cumpre a legisla\u00e7\u00e3o da UE em mat\u00e9ria de cosm\u00e9ticos e as restri\u00e7\u00f5es relativas \u00e0 utiliza\u00e7\u00e3o profissional.<\/p>\n<\/li>\n<li data-start=\"1668\" data-end=\"1765\">\n<p data-start=\"1670\" data-end=\"1765\"><strong data-start=\"1670\" data-end=\"1693\">Verifica\u00e7\u00e3o do r\u00f3tulo:<\/strong> Garante que as declara\u00e7\u00f5es dos ingredientes e as advert\u00eancias para uso profissional estejam corretas.<\/p>\n<\/li>\n<li data-start=\"1766\" data-end=\"1885\">\n<p data-start=\"1768\" data-end=\"1885\"><strong data-start=\"1768\" data-end=\"1786\">Acesso ao mercado:<\/strong> Exigido por distribuidores, retalhistas e autoridades para a coloca\u00e7\u00e3o de produtos para unhas no mercado da UE.<\/p>\n<\/li>\n<li data-start=\"1886\" data-end=\"1977\">\n<p data-start=\"1888\" data-end=\"1977\"><strong data-start=\"1888\" data-end=\"1908\">Controlo de qualidade:<\/strong> Deteta contamina\u00e7\u00e3o nas mat\u00e9rias-primas ou inconsist\u00eancias na formula\u00e7\u00e3o.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1984\" data-end=\"2001\">Metodologia<\/h3>\n<p data-start=\"2002\" data-end=\"2101\">O teste de dete\u00e7\u00e3o de HEMA \u00e9 realizado utilizando <strong data-start=\"2045\" data-end=\"2087\">t\u00e9cnicas anal\u00edticas altamente sens\u00edveis<\/strong>:<\/p>\n<ul data-start=\"2102\" data-end=\"2267\">\n<li data-start=\"2102\" data-end=\"2155\">\n<p data-start=\"2104\" data-end=\"2155\"><strong data-start=\"2104\" data-end=\"2153\">Cromatografia l\u00edquida de alta efici\u00eancia (HPLC)<\/strong><\/p>\n<\/li>\n<li data-start=\"2156\" data-end=\"2208\">\n<p data-start=\"2158\" data-end=\"2208\"><strong data-start=\"2158\" data-end=\"2206\">Cromatografia de G\u00e1s-Espectrometria de Massa (GC-MS)<\/strong><\/p>\n<\/li>\n<li data-start=\"2209\" data-end=\"2267\">\n<p data-start=\"2211\" data-end=\"2267\"><strong data-start=\"2211\" data-end=\"2265\">Cromatografia l\u00edquida-espectrometria de massa (LC-MS\/MS)<\/strong><\/p>\n<\/li>\n<\/ul>\n<p data-start=\"2269\" data-end=\"2408\">Estes m\u00e9todos permitem a identifica\u00e7\u00e3o e quantifica\u00e7\u00e3o precisas do HEMA, mesmo em <strong data-start=\"2348\" data-end=\"2364\">n\u00edveis vestigiais<\/strong>, o que permite um controlo fi\u00e1vel do cumprimento das normas.<\/p>\n<h3 data-start=\"2415\" data-end=\"2435\">Procedimento de teste<\/h3>\n<ol data-start=\"2436\" data-end=\"2862\">\n<li data-start=\"2436\" data-end=\"2541\">\n<p data-start=\"2439\" data-end=\"2541\">Recolhe-se uma amostra representativa do produto para unhas (verniz em gel, base, gel de constru\u00e7\u00e3o, etc.).<\/p>\n<\/li>\n<li data-start=\"2542\" data-end=\"2634\">\n<p data-start=\"2545\" data-end=\"2634\">A amostra \u00e9 submetida a uma extra\u00e7\u00e3o com solvente para isolar mon\u00f3meros e compostos de metacrilato.<\/p>\n<\/li>\n<li data-start=\"2635\" data-end=\"2704\">\n<p data-start=\"2638\" data-end=\"2704\">O extrato \u00e9 analisado atrav\u00e9s de m\u00e9todos cromatogr\u00e1ficos validados.<\/p>\n<\/li>\n<li data-start=\"2705\" data-end=\"2778\">\n<p data-start=\"2708\" data-end=\"2778\">A HEMA \u00e9 identificada por compara\u00e7\u00e3o com padr\u00f5es de refer\u00eancia certificados.<\/p>\n<\/li>\n<li data-start=\"2779\" data-end=\"2862\">\n<p data-start=\"2782\" data-end=\"2862\">Os resultados quantitativos s\u00e3o calculados e comparados com os valores-limite estabelecidos.<\/p>\n<\/li>\n<\/ol>\n<h3 data-start=\"2869\" data-end=\"2894\">Resultados e relat\u00f3rios<\/h3>\n<p data-start=\"2895\" data-end=\"2938\">O relat\u00f3rio do laborat\u00f3rio costuma incluir:<\/p>\n<ul data-start=\"2939\" data-end=\"3230\">\n<li data-start=\"2939\" data-end=\"2986\">\n<p data-start=\"2941\" data-end=\"2986\">Confirma\u00e7\u00e3o da presen\u00e7a ou aus\u00eancia de HEMA<\/p>\n<\/li>\n<li data-start=\"2987\" data-end=\"3042\">\n<p data-start=\"2989\" data-end=\"3042\">Resultados quantitativos da concentra\u00e7\u00e3o (mg\/kg ou % p\/p)<\/p>\n<\/li>\n<li data-start=\"3043\" data-end=\"3097\">\n<p data-start=\"3045\" data-end=\"3097\">Limites de dete\u00e7\u00e3o do m\u00e9todo e incerteza anal\u00edtica<\/p>\n<\/li>\n<li data-start=\"3098\" data-end=\"3149\">\n<p data-start=\"3100\" data-end=\"3149\">Refer\u00eancia aos regulamentos da UE aplic\u00e1veis em mat\u00e9ria de cosm\u00e9ticos<\/p>\n<\/li>\n<li data-start=\"3150\" data-end=\"3230\">\n<p data-start=\"3152\" data-end=\"3230\">Declara\u00e7\u00e3o de conformidade que indica se o produto cumpre os requisitos legais<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3237\" data-end=\"3263\">Aplica\u00e7\u00f5es t\u00edpicas<\/h3>\n<ul data-start=\"3264\" data-end=\"3450\">\n<li data-start=\"3264\" data-end=\"3292\">\n<p data-start=\"3266\" data-end=\"3292\">Esmaltes em gel UV\/LED<\/p>\n<\/li>\n<li data-start=\"3293\" data-end=\"3323\">\n<p data-start=\"3295\" data-end=\"3323\">Prepara\u00e7\u00e3o e modela\u00e7\u00e3o de g\u00e9is<\/p>\n<\/li>\n<li data-start=\"3324\" data-end=\"3358\">\n<p data-start=\"3326\" data-end=\"3358\">Camadas de base e sistemas de liga\u00e7\u00e3o<\/p>\n<\/li>\n<li data-start=\"3359\" data-end=\"3389\">\n<p data-start=\"3361\" data-end=\"3389\">Endurecedores e bases para unhas<\/p>\n<\/li>\n<li data-start=\"3390\" data-end=\"3450\">\n<p data-start=\"3392\" data-end=\"3450\">Testes de mat\u00e9rias-primas para fabricantes de produtos para unhas<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3457\" data-end=\"3484\">Por que \u00e9 que este teste \u00e9 importante?<\/h3>\n<p data-start=\"3485\" data-end=\"3790\">O HEMA \u00e9 um dos ingredientes mais rigorosamente controlados nos cosm\u00e9ticos para unhas, devido ao <strong data-start=\"3562\" data-end=\"3589\">elevado risco de hipersensibilidade<\/strong>. O Teste de Detec\u00e7\u00e3o de HEMA fornece aos fabricantes, importadores e respons\u00e1veis <strong data-start=\"3679\" data-end=\"3709\">provas claras e fundamentadas<\/strong> de que os seus produtos s\u00e3o seguros, cumprem os regulamentos e s\u00e3o adequados para o mercado a que se destinam.   <\/p>\n<p data-start=\"3792\" data-end=\"4041\" data-is-last-node=\"\" data-is-only-node=\"\">Este teste \u00e9 frequentemente inclu\u00eddo num <strong data-start=\"3841\" data-end=\"3876\">pacote<\/strong> mais abrangente <strong data-start=\"3841\" data-end=\"3876\">de conformidade para produtos para unhas<\/strong>, juntamente com <strong data-start=\"3888\" data-end=\"3905\">a dete\u00e7\u00e3o de TPO<\/strong>, <strong data-start=\"3907\" data-end=\"3929\">o rastreio de alerg\u00e9nios<\/strong>, <strong data-start=\"3931\" data-end=\"3959\">a avalia\u00e7\u00e3o de seguran\u00e7a (CPSR)<\/strong> e <strong data-start=\"3965\" data-end=\"3986\">a documenta\u00e7\u00e3o PIF<\/strong>, para garantir que o produto est\u00e1 totalmente pronto para o mercado da UE.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>O Teste de Detec\u00e7\u00e3o de HEMA \u00e9 uma an\u00e1lise laboratorial especializada utilizada para detetar e quantificar o metacrilato de 2-hidroxietilo (HEMA) em cosm\u00e9ticos e produtos para as unhas. O HEMA \u00e9 um mon\u00f3mero de metacrilato que se encontra frequentemente em vernizes de unhas em gel, g\u00e9is de constru\u00e7\u00e3o, camadas de base e sistemas de unhas&#8230;<\/p>\n","protected":false},"featured_media":33410,"template":"","meta":[],"product_brand":[],"product_cat":[2394],"product_tag":[],"class_list":["post-33408","product","type-product","status-publish","has-post-thumbnail","product_cat-verificacao-de-alegacoes-e-analise-de-ingredientes","first","instock","virtual","taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"exclude_global_add_ons":[],"addons":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.4 (Yoast SEO v27.7) - 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