{"id":8632,"date":"2025-05-16T04:27:50","date_gmt":"2025-05-16T04:27:50","guid":{"rendered":"https:\/\/changhongchemical.com\/?p=8632"},"modified":"2026-04-27T11:15:59","modified_gmt":"2026-04-27T11:15:59","slug":"research-report-on-antioxidants-commonly-used-in-cosmetics","status":"publish","type":"post","link":"https:\/\/changhongchemical.com\/pt\/research-report-on-antioxidants-commonly-used-in-cosmetics\/","title":{"rendered":"Relat\u00f3rio de pesquisa sobre antioxidantes comumente usados em cosm\u00e9ticos"},"content":{"rendered":"<p>I. Tipos e caracter\u00edsticas dos antioxidantes<\/p>\n<p>1. Antioxidantes naturais<\/p>\n<p>Vitamina E (tocoferol)<\/p>\n<p>Vitamina sol\u00favel em gordura, a estrutura qu\u00edmica cont\u00e9m duas categorias principais de tocofer\u00f3is e trienil tocofer\u00f3is, dos quais o \u03b1-tocoferol \u00e9 a forma mais amplamente distribu\u00edda e ativa na natureza. Sua forte capacidade antioxidante decorre do grupo hidroxila e da estrutura de liga\u00e7\u00e3o dupla, que podem estabilizar os radicais livres e retardar os danos oxidativos \u00e0s c\u00e9lulas.<\/p>\n<p>Caracter\u00edsticas: sol\u00favel em gordura, resistente ao calor (n\u00e3o se decomp\u00f5e a 220\u00b0C), mas sens\u00edvel \u00e0 luz e ao oxig\u00eanio, facilmente descolorido.<\/p>\n<p>Mecanismo de a\u00e7\u00e3o: Como um antioxidante de termina\u00e7\u00e3o de cadeia, fornece \u00e1tomos de hidrog\u00eanio para neutralizar os radicais livres e inibir a peroxida\u00e7\u00e3o lip\u00eddica.<\/p>\n<p>Aplica\u00e7\u00e3o: Amplamente usado em cremes antienvelhecimento e cremes para os olhos, muitas vezes combinados com vitamina C para aumentar o efeito.<\/p>\n<p>Vitamina C (\u00e1cido asc\u00f3rbico)<\/p>\n<p>Nome qu\u00edmico: \u00c1cido L-asc\u00f3rbico (\u00e1cido L-asc\u00f3rbico)<br \/>\nPropriedades f\u00edsicas: p\u00f3 cristalino branco, facilmente sol\u00favel em \u00e1gua, sabor \u00e1cido; sens\u00edvel ao calor, \u00e0 luz, ao oxig\u00eanio, \u00e0 alta temperatura ou \u00e0 exposi\u00e7\u00e3o prolongada \u00e0 falha de oxida\u00e7\u00e3o.<br \/>\nEstabilidade: est\u00e1vel em ambiente \u00e1cido (por exemplo, suco de lim\u00e3o), f\u00e1cil de se decompor em ambiente alcalino ou neutro; a taxa de perda pode chegar a 30%-50% durante o cozimento (por exemplo, ferver vegetais).<\/p>\n<p>Caracter\u00edsticas: Sol\u00favel em \u00e1gua, estabilidade ruim (f\u00e1cil de oxidar quando exposto \u00e0 luz e ao calor), precisa de derivados (por exemplo, palmitato de ascorbila) para melhorar a estabilidade.<\/p>\n<p>Mecanismo de a\u00e7\u00e3o: elimina\u00e7\u00e3o de radicais livres, promo\u00e7\u00e3o da s\u00edntese de col\u00e1geno, inibi\u00e7\u00e3o da produ\u00e7\u00e3o de melanina.<\/p>\n<p>Aplica\u00e7\u00e3o: ess\u00eancia clareadora, produtos de prote\u00e7\u00e3o solar, que precisam evitar embalagens leves.<\/p>\n<p>Polifen\u00f3is do ch\u00e1 (extrato de ch\u00e1 verde)<\/p>\n<p>O polifenol do ch\u00e1 \u00e9 o principal ingrediente ativo do ch\u00e1 verde, representando cerca de 30% do conte\u00fado de mat\u00e9ria seca, extra\u00eddo principalmente do ch\u00e1 e de seus subprodutos (por exemplo, p\u00f3 de ch\u00e1, folhas de poda). Sua estrutura molecular cont\u00e9m hidroxila e liga\u00e7\u00f5es duplas, o que lhe confere uma forte capacidade antioxidante, eliminando os radicais livres e sendo 18 vezes mais eficaz do que a vitamina E, e efeito sin\u00e9rgico com a vitamina C.<\/p>\n<p>Caracter\u00edsticas: Polifen\u00f3is, capacidade antioxidante 18 vezes maior que a da vitamina E, f\u00e1cil de mudar de cor ao encontrar \u00edons met\u00e1licos.<\/p>\n<p>Mecanismo de a\u00e7\u00e3o: atrav\u00e9s do grupo hidroxila fen\u00f3lico para a termina\u00e7\u00e3o de hidrog\u00eanio da rea\u00e7\u00e3o em cadeia de radicais livres, inibe a atividade da tirosinase.<\/p>\n<p>Aplica\u00e7\u00e3o: Produtos antial\u00e9rgicos e anti-inflamat\u00f3rios para cuidados com a pele, comumente encontrados em soros e m\u00e1scaras.<\/p>\n<p>Coenzima Q10 (ubiquinona)<\/p>\n<p>Um composto de benzoquinona sol\u00favel em gordura, cuja estrutura molecular cont\u00e9m 10 unidades de isopreno, amplamente encontrado em leveduras, folhas de plantas e \u00f3rg\u00e3os de animais, \u00e9 um componente essencial do metabolismo energ\u00e9tico celular, sendo o \u00fanico antioxidante sol\u00favel em gordura renov\u00e1vel no corpo humano. Seu conte\u00fado diminui com a idade, com picos aos 20 anos de idade.<\/p>\n<p>Caracter\u00edsticas: Sol\u00favel em gordura, antioxidante end\u00f3geno, diminui com a idade.<\/p>\n<p>Mecanismo de a\u00e7\u00e3o: Participa do metabolismo energ\u00e9tico mitocondrial, neutraliza os radicais livres, repara as membranas celulares.<\/p>\n<p>Astaxantina<\/p>\n<p>A astaxantina \u00e9 um cetocarotenoide, quimicamente conhecido como 3,3\u2032-dihidroxi-4,4\u2032-diketo-\u03b2,\u03b2\u2032-caroteno, \u00e9 um p\u00f3 s\u00f3lido vermelho, sol\u00favel em gordura e insol\u00favel em \u00e1gua, as fontes naturais de algas vermelhas, salm\u00e3o, krill e outros organismos aqu\u00e1ticos. Sua capacidade antioxidante excede em muito a da vitamina E, lute\u00edna, etc. \u00c9 um dos mais fortes antioxidantes naturais conhecidos e n\u00e3o ser\u00e1 convertido em vitamina A, evitando o risco de pr\u00f3-oxida\u00e7\u00e3o.<\/p>\n<p>Mecanismo de a\u00e7\u00e3o: elimina\u00e7\u00e3o do oxig\u00eanio de linha \u00fanica, bloqueando a rea\u00e7\u00e3o em cadeia dos radicais livres; inibi\u00e7\u00e3o da atividade da tirosinase, redu\u00e7\u00e3o da produ\u00e7\u00e3o de melanina e acelera\u00e7\u00e3o do metabolismo; aumento da capacidade da pele de reter \u00e1gua, para auxiliar na prote\u00e7\u00e3o contra os danos causados pelos raios UV.<\/p>\n<p>Aplica\u00e7\u00f5es: produtos antienvelhecimento de alta qualidade, protetor solar.<\/p>\n<p>2. Antioxidantes sint\u00e9ticos<\/p>\n<p>Butil-hidroxitolueno (BHT)<\/p>\n<p>\u00c9 um antioxidante sint\u00e9tico na forma de cristais ou p\u00f3 branco, resistente a altas temperaturas e \u00edons met\u00e1licos, e \u00e9 amplamente utilizado em cosm\u00e9ticos para evitar a oxida\u00e7\u00e3o de lip\u00eddios. Sua estrutura molecular fornece \u00e1tomos de hidrog\u00eanio para neutralizar os radicais livres, bloqueando as rea\u00e7\u00f5es oxidativas em cadeia e protegendo efetivamente os ingredientes do produto contra a degrada\u00e7\u00e3o oxidativa. O Comit\u00ea Cient\u00edfico de Seguran\u00e7a do Consumidor (CSSC) da Uni\u00e3o Europeia recomenda limitar a concentra\u00e7\u00e3o em produtos cosm\u00e9ticos (\u22640,1% para produtos residentes e \u22640,8% para produtos de enx\u00e1gue) para evitar poss\u00edveis riscos de desregula\u00e7\u00e3o end\u00f3crina. Sob o conceito de \"cuidados puros com a pele\", algumas marcas o inclu\u00edram na lista de proibi\u00e7\u00f5es, dando prefer\u00eancia a solu\u00e7\u00f5es de estabiliza\u00e7\u00e3o mais suaves e antioxidantes naturais.<br \/>\nCaracter\u00edsticas: Boa estabilidade t\u00e9rmica, inodoro, sem descolora\u00e7\u00e3o quando exposto a metais, mas potencialmente carcinog\u00eanico e controverso.<br \/>\nAplica\u00e7\u00e3o: Cosm\u00e9ticos \u00e0 base de \u00f3leo (por exemplo, \u00f3leos removedores de maquiagem, cremes), a quantidade adicionada \u00e9 geralmente de 0,01% a 0,1%.<\/p>\n<p>Tert-butylhydroquinone (<a href=\"https:\/\/changhongchemical.com\/product\/chlumiao-tbhq-cas-1948-33-0\/\">TBHQ<\/a>)<\/p>\n<p>O nome qu\u00edmico \u00e9 terc-butil-hidroquinona (C\u2081\u2080H\u2081\u2084O\u2082), um p\u00f3 cristalino branco, ponto de fus\u00e3o 126,5-128,5\u00b0C, ponto de ebuli\u00e7\u00e3o 300\u00b0C, facilmente sol\u00favel em etanol, \u00e9ter e graxa, insol\u00favel em \u00e1gua e est\u00e1vel ao calor, mas pode assumir uma cor rosada na presen\u00e7a de luz ou condi\u00e7\u00f5es alcalinas. Ele protege a estabilidade dos ingredientes fornecendo \u00e1tomos de hidrog\u00eanio para neutralizar os radicais livres e bloquear as rea\u00e7\u00f5es oxidativas em cadeia. Os limites de concentra\u00e7\u00e3o a serem observados em produtos cosm\u00e9ticos s\u00e3o \u2264 0,8% para produtos de aplica\u00e7\u00e3o e \u2264 0,1% para produtos residentes.<\/p>\n<p>Caracter\u00edsticas: Antioxidante altamente eficiente, resistente a altas temperaturas, adequado para produtos com alto teor de \u00e1cidos graxos insaturados.<\/p>\n<p>Aplica\u00e7\u00f5es: emuls\u00f5es e ess\u00eancias com requisitos de alta estabilidade.<\/p>\n<p>\u00c1cido etilenodiaminotetrac\u00e9tico (EDTA)<\/p>\n<p>\u00c9 um agente quelante de poli\u00e1cido org\u00e2nico com f\u00f3rmula qu\u00edmica C\u2081\u2080H\u2081\u2086N\u2082O\u2088, p\u00f3 branco em temperatura ambiente, insol\u00favel em \u00e1gua, mas sua forma de sal de s\u00f3dio (como EDTA-2Na) \u00e9 sol\u00favel em \u00e1gua, amplamente utilizado em cosm\u00e9ticos. Protege a estabilidade dos ingredientes do produto formando complexos est\u00e1veis com \u00edons met\u00e1licos (por exemplo, Ca\u00b2\u207a, Mg\u00b2\u207a, Fe\u00b3\u207a, etc.) e bloqueando rea\u00e7\u00f5es de oxida\u00e7\u00e3o ou precipita\u00e7\u00e3o envolvendo \u00edons met\u00e1licos.<\/p>\n<p>Caracter\u00edsticas: Agente quelante de metais, antioxidante preventivo, reduz a oxida\u00e7\u00e3o catalisada por \u00edons met\u00e1licos.<\/p>\n<p>Aplica\u00e7\u00e3o: Usado com outros antioxidantes, comumente usado em produtos de limpeza.<\/p>\n<p>Mecanismo<\/p>\n<p>1. Termina\u00e7\u00e3o da cadeia: fornece diretamente \u00e1tomos de hidrog\u00eanio ou el\u00e9trons para neutralizar os radicais livres (por exemplo, vitamina E, polifen\u00f3is do ch\u00e1).<\/p>\n<p>2. Tipo preventivo:<\/p>\n<p>Quelatam \u00edons met\u00e1licos (como EDTA, \u00e1cido c\u00edtrico), bloqueando a cat\u00e1lise de oxida\u00e7\u00e3o.<\/p>\n<p>Decomp\u00f5e os per\u00f3xidos (por exemplo, \u00e1cido tiodipropi\u00f4nico) para reduzir a gera\u00e7\u00e3o de radicais livres.<\/p>\n<p>3. Enzimas: como a super\u00f3xido dismutase (SOD), que catalisa a convers\u00e3o de radicais de super\u00f3xido em subst\u00e2ncias inofensivas.<\/p>\n<p>III. Aplicativos<\/p>\n<p>Estrat\u00e9gia de composi\u00e7\u00e3o:<\/p>\n<p>Sol\u00favel em \u00e1gua com sol\u00favel em \u00f3leo (por exemplo, vitamina C + vitamina E).<\/p>\n<p>Sinergismo preventivo e de termina\u00e7\u00e3o de cadeia (por exemplo, BHT + \u00e1cido c\u00edtrico).<\/p>\n<p>Adapta\u00e7\u00e3o do produto:<\/p>\n<p>Protetor solar: astaxantina + vitamina E para maior fotoprote\u00e7\u00e3o.<\/p>\n<p>Soro: Coenzima Q10 + pept\u00eddeos para antienvelhecimento e reparo.<\/p>\n<p>Produtos para peles sens\u00edveis: polifen\u00f3is do ch\u00e1 + extrato de alca\u00e7uz, anti-inflamat\u00f3rios e antioxidantes.<\/p>\n<h1><strong><b>Entre em contato conosco agora!<\/b><\/strong><\/h1>\n<h4><strong><b>Se precisar do Price, preencha suas informa\u00e7\u00f5es de contato no formul\u00e1rio abaixo. Normalmente, entraremos em contato dentro de 24 horas. Voc\u00ea tamb\u00e9m pode me enviar um e-mail\u00a0<span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"mailto:info@changhongchemical.com\">info@changhongchemical.com<\/a><\/span>\u00a0durante o hor\u00e1rio comercial (das 8h30 \u00e0s 18h UTC+8 de segunda a s\u00e1bado) ou use o bate-papo ao vivo do site para obter uma resposta imediata.<\/b><\/strong><\/h4>","protected":false},"excerpt":{"rendered":"<p>I. Types and characteristics of antioxidants 1. Natural antioxidants Vitamin E (tocopherol) A fat-soluble vitamin, the chemical structure contains two major categories of tocopherols and trienyl tocopherols, of which \u03b1-tocopherol is the most widely&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[152],"tags":[],"class_list":["post-8632","post","type-post","status-publish","format-standard","hentry","category-antioxidant"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Research Report on Antioxidants Commonly Used in Cosmetics - Changhong Chemical<\/title>\n<meta name=\"description\" content=\"I. Types and characteristics of antioxidants 1. 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