{"id":4393,"date":"2018-10-25T12:07:30","date_gmt":"2018-10-25T10:07:30","guid":{"rendered":"https:\/\/www.leti.com\/dermipedia\/que-es\/o-que-e-o-ph\/"},"modified":"2018-10-25T12:07:30","modified_gmt":"2018-10-25T10:07:30","slug":"o-que-e-o-ph","status":"publish","type":"que-es","link":"https:\/\/www.leti.com\/dermipedia\/pt-pt\/que-es\/o-que-e-o-ph\/","title":{"rendered":"O que \u00e9 o pH?"},"content":{"rendered":"<p>O pH (do latim, pondus hydrogenium, ou seja, peso de hidrog\u00e9nio) \u00e9 basicamente uma medida do grau de acidez ou alcalinidade de uma subst\u00e2ncia. Para teres uma ideia, <a href=\"https:\/\/www.leti.com\/dermipedia\/pt-pt\/qual-e-o-ph-da-tua-pele\/\" target=\"_blank\" rel=\"noopener\">o pH<\/a> da \u00e1gua \u00e9 7, as subst\u00e2ncias abaixo de 7 s\u00e3o \u00e1cidas e as subst\u00e2ncias acima de 7 s\u00e3o alcalinas. <\/p>\n<p>Embora o pH da pele seja \u00e1cido e se situe entre 4,5 e 5,9, varia de acordo com a idade, o sexo, a localiza\u00e7\u00e3o, os factores gen\u00e9ticos raciais e as doen\u00e7as de pele.<\/p>\n<p>A acidez da pele \u00e9 definida por um complexo f\u00edsico-qu\u00edmico denominado manto \u00e1cido. Este \u00e9 constitu\u00eddo por uma camada gasosa (CO2 e vapor de \u00e1gua) e uma emuls\u00e3o l\u00edquido-gordura (\u00e1gua do suor e \u00f3leos das <a href=\"https:\/\/www.leti.com\/dermipedia\/que-es\/glandulas-sebaceas\/\" target=\"_blank\" rel=\"noopener\">gl\u00e2ndulas seb\u00e1ceas<\/a> e dos processos de forma\u00e7\u00e3o da pele). <\/p>\n<p>Actua como um poderoso protetor natural impedindo a prolifera\u00e7\u00e3o de diferentes tipos de germes (bact\u00e9rias, v\u00edrus, fungos&#8230;) na pele. Actua tamb\u00e9m como protetor da flora normal, favorecendo o equil\u00edbrio entre a secura e o excesso de oleosidade da pele. <\/p>\n","protected":false},"excerpt":{"rendered":"Sabes o que \u00e9 o pH? Descobre o que \u00e9 connosco. \n","protected":false},"featured_media":3544,"template":"","class_list":["post-4393","que-es","type-que-es","status-publish","has-post-thumbnail"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.1.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O que \u00e9 o pH? - Dermipedia<\/title>\n<meta name=\"description\" content=\"Sabes o que \u00e9 o pH? Descobre o que \u00e9 connosco.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.leti.com\/dermipedia\/pt-pt\/que-es\/o-que-e-o-ph\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"O que \u00e9 o pH? - Dermipedia\" \/>\n<meta property=\"og:description\" content=\"Sabes o que \u00e9 o pH? 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