{"id":46277,"date":"2022-05-17T08:00:00","date_gmt":"2022-05-17T08:00:00","guid":{"rendered":"https:\/\/nailknowledge.org\/?p=46277"},"modified":"2025-08-12T18:23:36","modified_gmt":"2025-08-12T18:23:36","slug":"3-huyen-thoai-mien-phi-ve-san-pham-lam-mong","status":"publish","type":"post","link":"https:\/\/nailknowledge.org\/vi\/blog\/the-3-free-myth-about-nail-products","title":{"rendered":"Huy\u1ec1n tho\u1ea1i 3-Mi\u1ec5n ph\u00ed"},"content":{"rendered":"<p>We\u2019ve all heard the misleading claims that nail polish is harmful unless it\u2019s \u201c3-Free\u201d. The facts are that this was deception from the very beginning.&nbsp;&nbsp;All nail polish can be used safely, and that\u2019s been true for more than eighty years. Nail polish formulas haven\u2019t changed much since the 1930s. How did they so suddenly become dangerous? I don\u2019t know of any cases when nail polish has harmed anyone, other than it catching fire. Fresh nail polish is flammable &#8211; so don\u2019t do as my friend did and light up a cigarette immediately after polishing your nails. All nail polishes are safe. Those that market their polish as \u201csafer\u201d are splitting hairs. It\u2019s like saying that using an SPF 70 lotion isn\u2019t as safe as SPF 80. The fact is both are safe.&nbsp;&nbsp;Don\u2019t be concerned about nail polish causing any harm to your health, when used as directed.<\/p>\n\n\n\n<p>T\u1ea5t c\u1ea3 nh\u1eefng th\u00f4ng tin sai l\u1ec7ch v\u1ec1 s\u01a1n m\u00f3ng tay n\u00e0y b\u1eaft \u0111\u1ea7u nh\u01b0 th\u1ebf n\u00e0o? <br>N\u00f3 b\u1eaft \u0111\u1ea7u nh\u01b0 m\u1ed9t chi\u1ebfn d\u1ecbch ti\u1ebfp th\u1ecb th\u00f4ng minh v\u00e0 l\u1eeba \u0111\u1ea3o cao \u0111\u1ed9 c\u1ee7a m\u1ed9t nh\u00f3m ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean n\u1ed7i s\u1ee3 h\u00e3i. Nh\u00f3m n\u00e0y \u0111\u00e3 t\u1ea1o ra m\u1ed1i quan t\u00e2m an to\u00e0n sai l\u1ea7m v\u00e0 sau \u0111\u00f3 ki\u1ebfm ti\u1ec1n t\u1eeb c\u00e1c kho\u1ea3n quy\u00ean g\u00f3p, tuy\u00ean b\u1ed1 r\u1eb1ng h\u1ecd \u0111ang c\u1ee9u th\u1ebf gi\u1edbi kh\u1ecfi lo\u1ea1i s\u01a1n m\u00f3ng tay nguy hi\u1ec3m! H\u1ecd \u0111\u00e3 \u0111\u01b0a ra nh\u1eefng tuy\u00ean b\u1ed1 ph\u00f3ng \u0111\u1ea1i v\u1ec1 c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ec3 g\u00e2y s\u1ee3 h\u00e3i kh\u00f4ng c\u1ea7n thi\u1ebft cho c\u00f4ng ch\u00fang. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Toluen<\/h4>\n\n\n\n<p>V\u00ed d\u1ee5, h\u1ecd tuy\u00ean b\u1ed1 r\u1eb1ng toluene nguy hi\u1ec3m trong s\u01a1n m\u00f3ng tay, nh\u01b0ng th\u00f4ng tin \u0111\u00f3 tr\u00e1i ng\u01b0\u1ee3c v\u1edbi s\u1ef1 th\u1eadt. H\u1ed9i \u0111\u1ed3ng chuy\u00ean gia \u0111\u00e1nh gi\u00e1 m\u1ef9 ph\u1ea9m (CIR) uy t\u00edn \u0111\u00e3 \u0111\u00e1nh gi\u00e1 toluene. Sau khi xem x\u00e9t c\u00f4ng b\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c th\u00f4ng tin khoa h\u1ecdc, h\u1ed9i \u0111\u1ed3ng g\u1ed3m c\u00e1c b\u00e1c s\u0129 v\u00e0 nh\u00e0 khoa h\u1ecdc \u0111\u1eb3ng c\u1ea5p th\u1ebf gi\u1edbi n\u00e0y \u0111\u00e3 x\u00e1c \u0111\u1ecbnh r\u1eb1ng toluene \u0111\u01b0\u1ee3c coi l\u00e0 an to\u00e0n \u1edf h\u00e0m l\u01b0\u1ee3ng l\u00ean \u0111\u1ebfn 50% trong s\u01a1n m\u00f3ng tay. Li\u00ean minh ch\u00e2u \u00c2u \u0111\u00e3 th\u1ef1c hi\u1ec7n c\u00f9ng m\u1ed9t th\u1eed nghi\u1ec7m v\u00e0 k\u1ebft lu\u1eadn r\u1eb1ng toluene an to\u00e0n trong s\u01a1n m\u00f3ng tay l\u00ean \u0111\u1ebfn 25%. \u0110\u00f3 l\u00e0 n\u1ed3ng \u0111\u1ed9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Do \u0111\u00f3, c\u00e1c chuy\u00ean gia khoa h\u1ecdc \u0111\u1ed9c l\u1eadp \u1edf c\u1ea3 Hoa K\u1ef3 v\u00e0 EU \u0111\u1ec1u cho r\u1eb1ng toluene an to\u00e0n khi s\u1eed d\u1ee5ng trong s\u01a1n m\u00f3ng tay.&nbsp;<\/p>\n\n\n\n<p>V\u1eady t\u1ea1i sao toluene kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u1ee5c \u0111\u00edch n\u00e0y n\u1eefa? <br>Manufacturers voluntarily eliminated toluene because it is a volatile organic compound (VOC), and it was found to contribute slightly to ozone depletion. Nail manufacturers wanting to do their part for the environment agreed to replace toluene with other solvents. Even so, these fear-based advocacy groups again deceived the public! They pretended that manufacturers change because of toluene\u2019s toxicity, which is an outright lie. These same activist groups lie to the news media as well, and tell them that even nail polish formulas with &lt;0.1% toluene are still toxic &#8211; even though this is contrary to all of the scientific facts. These groups pretend there is no safe amount of anything they say is dangerous. This just shows they don\u2019t understand the science or the facts. Instead, they want the world to be black and white, when this clearly isn\u2019t so.&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Dibutyl phthalate (DBP)<\/h4>\n\n\n\n<p>Dibutyl phthalate (DBP) is another example. This ingredient hasn\u2019t been used very much at all in nail polish formulas for at least ten years, but that didn\u2019t stop these groups from stretching the truth. It is no longer used, even though it has been found to be safe for nail polish applications. Better replacements are now used to increase the wearability of nail polish, which was how DBP functioned in polish. There has NEVER been any credible evidence to show that DPB was harmful in nail polishes. Other phthalates with similar-sounding names were determined to be unsuitable for cosmetics, but these were never used in nail polish. <\/p>\n\n\n\n<p>The fear-mongering activists paint everything with a broad brush so, without evidence, they assumed that DBP must also be dangerous. In other words, rather than explain that some phthalates are safe, they decided to scare consumers by telling them that all phthalates are dangerous, again, because they don\u2019t understand the facts.&nbsp;&nbsp;They hide their lack of knowledge and reduce everything to black and white. They don\u2019t like the scientific facts; they\u2019d rather base their unfair attacks on pure speculation.&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Formaldehyde<\/h4>\n\n\n\n<p>Formaldehyde at room temperature is a gas, but in cosmetic manufacturing it is usually stored and used in a water-based liquid form, such as <strong>formalin<\/strong> ho\u1eb7c <strong>methylene glycol<\/strong>. Historically, these liquid forms were used in some nail hardeners. In nail polishes, formaldehyde has been present mainly as <strong>tosylamide\/formaldehyde resin (TSFR)<\/strong>, a polymer that improves shine, durability, and adhesion. While resin forms remain the standard in polishes today, the fact that free liquid formaldehyde has been used in certain nail treatments in the past is important to note.<\/p>\n\n\n\n<p>Years ago, nail polish manufacturers were required to call this resin by a name that included the word \u201cformaldehyde,\u201d even though it is chemically very different from the gas or liquid form of formaldehyde itself.<\/p>\n\n\n\n<p>\u00a0The name of the resin was toluene sulfonamide formaldehyde resin (TSFR). This isn\u2019t toluene or formaldehyde. These substances were used to make a completely different ingredient and, because they were made using these ingredients, it was assumed that they were in the polish.\u00a0\u00a0However, when this resin is used, the nail polish might contain 0.0005%. So you can\u2019t technically say they are \u201cformaldehyde-free\u201d, but for all practical purposes, they are indeed free of formaldehyde. Because of the misinformation spread by these fear-mongers, nail manufacturers worked behind the scene to have this misleading name corrected. Some may still use the old name for this ingredient, but this is slowly changing as manufacturers update their labels.\u00a0\u00a0<\/p>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y nhi\u1ec1u th\u00f4ng tin th\u1ef1c t\u1ebf h\u01a1n v\u1ec1 s\u01a1n m\u00f3ng tay trong <a href=\"https:\/\/schoonscientific.com\/wp-content\/uploads\/2016\/08\/Facts-About-Salon-Nail-Polish_ENG.pdf\">b\u00e0i b\u00e1o<\/a> b\u1edfi H\u1ed9i \u0111\u1ed3ng c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t m\u00f3ng tay. B\u1ea1n s\u1ebd bi\u1ebft r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i s\u01a1n m\u00f3ng tay \u0111\u1ec1u an to\u00e0n v\u00e0 lu\u00f4n nh\u01b0 v\u1eady. <\/p>\n\n\n\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1eed d\u1ee5ng s\u01a1n m\u00f3ng tay an to\u00e0n, h\u00e3y l\u00e0m theo h\u01b0\u1edbng d\u1eabn v\u00e0 ch\u00fa \u00fd \u0111\u1ebfn m\u1ecdi c\u1ea3nh b\u00e1o. V\u00ed d\u1ee5, \u0111\u1ec3 s\u01a1n m\u00f3ng tay v\u00e0 dung m\u00f4i t\u1ea9y s\u01a1n xa t\u1ea7m tay tr\u1ebb em v\u00e0 tr\u00e1nh xa ngu\u1ed3n nhi\u1ec7t ho\u1eb7c ng\u1ecdn l\u1eeda.<\/p>","protected":false},"excerpt":{"rendered":"<p>We\u2019ve all heard the misleading claims that nail polish is harmful unless it\u2019s \u201c3-Free\u201d. The facts are that this was deception from the very beginning.&nbsp;&nbsp;All nail polish can be used safely, and that\u2019s been true for more than eighty years. Nail polish formulas haven\u2019t changed much since the 1930s. How did they so suddenly become [&hellip;]<\/p>\n","protected":false},"author":51,"featured_media":48019,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"3-free","_yoast_wpseo_metadesc":"We've all heard of the \"3-Free Myth\": the misleading claims that nail polish is harmful unless it\u2019s \u201c3-Free\u201d.","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[61,75],"tags":[],"class_list":{"0":"post-46277","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-blog","8":"category-myth-busting","9":"entry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The 3-Free Myth - NailKnowledge<\/title>\n<meta name=\"description\" content=\"We&#039;ve all heard of the &quot;3-Free Myth&quot;: the misleading claims that nail polish is harmful unless it\u2019s \u201c3-Free\u201d.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nailknowledge.org\/vi\/blog\/3-huyen-thoai-mien-phi-ve-san-pham-lam-mong\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The 3-Free Myth - NailKnowledge\" \/>\n<meta property=\"og:description\" content=\"We&#039;ve all heard of the &quot;3-Free Myth&quot;: the misleading claims that nail polish is harmful unless it\u2019s \u201c3-Free\u201d.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nailknowledge.org\/vi\/blog\/3-huyen-thoai-mien-phi-ve-san-pham-lam-mong\/\" \/>\n<meta property=\"og:site_name\" content=\"NailKnowledge\" \/>\n<meta property=\"article:published_time\" content=\"2022-05-17T08:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-12T18:23:36+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/nailknowledge.org\/wp-content\/uploads\/2022\/05\/3-free-myth.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Doug Schoon\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Doug Schoon\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/nailknowledge.org\\\/blog\\\/the-3-free-myth-about-nail-products#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/nailknowledge.org\\\/blog\\\/the-3-free-myth-about-nail-products\"},\"author\":{\"name\":\"Doug Schoon\",\"@id\":\"https:\\\/\\\/new.nailknowledge.org\\\/#\\\/schema\\\/person\\\/f943bf883196cc008bfcfa7a8beee394\"},\"headline\":\"The 3-Free Myth\",\"datePublished\":\"2022-05-17T08:00:00+00:00\",\"dateModified\":\"2025-08-12T18:23:36+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/nailknowledge.org\\\/blog\\\/the-3-free-myth-about-nail-products\"},\"wordCount\":988,\"publisher\":{\"@id\":\"https:\\\/\\\/new.nailknowledge.org\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/nailknowledge.org\\\/blog\\\/the-3-free-myth-about-nail-products#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/nailknowledge.org\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/3-free-myth.png\",\"articleSection\":[\"BLOG\",\"Myth Busting\"],\"inLanguage\":\"vi\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/nailknowledge.org\\\/blog\\\/the-3-free-myth-about-nail-products\",\"url\":\"https:\\\/\\\/nailknowledge.org\\\/blog\\\/the-3-free-myth-about-nail-products\",\"name\":\"The 3-Free Myth - 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