{"id":13463,"date":"2025-12-18T12:19:32","date_gmt":"2025-12-18T12:19:32","guid":{"rendered":"https:\/\/dentaltestlab.com\/wasserstoffperoxid-in-zahnpflegeprodukten-wirkung-sicherheit-und-eu-regeln\/"},"modified":"2025-12-18T16:16:14","modified_gmt":"2025-12-18T16:16:14","slug":"hydrogen-peroxide-in-oral-care-products","status":"publish","type":"page","link":"https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/","title":{"rendered":"Hydrogen peroxide in oral care products: effects, safety and EU rules"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">HYDROGEN PEROXIDE (H\u2082O\u2082) \u2013 AT A GLANCE<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Type of ingredient: oxidising agent (\u201cbleaching agent\u201d) with antimicrobial effects<\/li>\n\n\n\n<li>Main use in dentistry: chemical tooth whitening (bleaching) by oxidising stain molecules<\/li>\n\n\n\n<li>Typical side effects: tooth sensitivity; irritation\/chemical burns of the gums and oral mucosa (especially at higher concentrations or if it contacts the gums)<\/li>\n\n\n\n<li>Key safety factor: concentration, contact time and the formulation\u2019s pH<\/li>\n\n\n\n<li>EU legal position: OTC products > 0.1% H\u2082O\u2082 are not permitted for consumers; 0.1\u20136% only under dental dispensing\/supervision [1]<\/li>\n\n\n\n<li>Ideal (if at all): for adults with healthy teeth\/gums after a dental check-up<\/li>\n\n\n\n<li>Avoid if you have: caries (tooth decay), leaking fillings, exposed tooth roots at the gumline, active periodontitis\/gingivitis, pronounced hypersensitivity, under 18; also avoid dubious imported kits with unclear labelling<\/li>\n<\/ul>\n\n\n\n<p>Disclaimer: This article is for information and does not replace personalised advice. If you want to bleach your teeth, have your teeth and gums checked by a dentist first \u2013 especially if you have sensitivity, gum recession, fillings\/crowns or existing damage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is hydrogen peroxide?<\/h2>\n\n\n\n<p>Hydrogen peroxide (H\u2082O\u2082) is a chemical compound best known as a strong oxidising agent. It breaks down (among other things through enzymes in the body) into water and oxygen\/reactive oxygen compounds. These reactive components are what create the \u201cbleaching\u201d effect.<\/p>\n\n\n\n<p>In dentistry, H\u2082O\u2082 is mainly used for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>tooth whitening (bleaching) \u2013 externally (on the tooth surface) and, through diffusion, also into superficial tooth structures<\/li>\n\n\n\n<li>sometimes also for short-term antiseptic effects in mouthwashes (here, weighing benefits against risks is especially important, as the oral mucosa can react sensitively)<\/li>\n<\/ul>\n\n\n\n<p>Important: Often, products do not contain H\u2082O\u2082 directly, but carbamide peroxide. This releases H\u2082O\u2082 in the mouth (roughly: 10% carbamide peroxide corresponds to around 3\u20133.5% H\u2082O\u2082). The key point for consumers: \u201creleased\u201d H\u2082O\u2082 also falls under the legal limits [1].<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How does hydrogen peroxide whiten teeth?<\/h2>\n\n\n\n<p>Tooth discolouration broadly falls into two categories:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Extrinsic staining: surface deposits from coffee, tea, red wine, tobacco, certain foods<\/li>\n\n\n\n<li>Intrinsic staining: pigments deeper inside the tooth (especially in dentine), e.g. due to ageing processes, trauma, medicines or following endodontic treatments<\/li>\n<\/ul>\n\n\n\n<p>Hydrogen peroxide whitens teeth by oxidising pigment molecules. This chemically alters the chromogens so they reflect light differently \u2013 making the tooth look lighter.<\/p>\n\n\n\n<p>What H\u2082O\u2082 can\u2019t do:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>It does not lighten fillings, crowns, veneers or bridges. This can lead to visible shade differences after bleaching (and often requires dental adjustment of restorations).<\/li>\n\n\n\n<li>It is not \u201ctooth repair\u201d \u2013 if enamel is already compromised or tooth roots are exposed at the gumline, bleaching can worsen symptoms.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Where is hydrogen peroxide found? (And why concentration is everything)<\/h2>\n\n\n\n<p>Effectiveness (and risk) depends heavily on concentration and contact time. That\u2019s why the EU regulates H\u2082O\u2082 in whitening products very strictly [1].<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Overview: typical use cases and the EU context<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Product\/application<\/th><th>Typical role of H\u2082O\u2082<\/th><th>EU status (simplified)<\/th><th>Practical relevance<\/th><\/tr><\/thead><tbody><tr><td>OTC oral care\/whitening<\/td><td>very low doses, often limited bleaching effect<\/td><td>&gt;0.1% not permitted for consumers [1]<\/td><td>Many \u201cstrong\u201d imported products are legally and medically problematic<\/td><\/tr><tr><td>Dentist-supervised home bleaching (trays)<\/td><td>controlled supply, better gingival protection<\/td><td>0.1\u20136% only via a dentist [1]<\/td><td>Often better tolerated because fit\/instructions are right<\/td><\/tr><tr><td>Professional in-office bleaching<\/td><td>fast, controlled whitening, strict protection<\/td><td>in the EU generally up to 6% within the cosmetic framework; higher concentrations only in narrowly justified settings\/regulatory frameworks<\/td><td>Effective, but sensitivity is possible \u2013 professional supervision is the safety anchor<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Why this matters: market surveillance and professional reports show that some freely available whitening products (especially from non-EU countries\/no-name imports) may contain excessive peroxide levels \u2013 sometimes with real risks of chemical burns [2,5]. The EU Safety Gate database also regularly documents recalls due to peroxide concentrations that are too high [6].<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Risks and side effects: what is well established for H\u2082O\u2082?<\/h2>\n\n\n\n<p>Hydrogen peroxide is effective \u2013 but it isn\u2019t harmless. Its side effects are well known from studies and clinical practice.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1) Tooth sensitivity (hypersensitivity)<\/h3>\n\n\n\n<p>The most common side effect after bleaching is temporary sensitivity to cold, heat or sweet foods. The cause is likely a combination of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>diffusion of reactive molecules towards the pulp (tooth nerve)<\/li>\n\n\n\n<li>temporary changes in fluid flow within dentine tubules<\/li>\n\n\n\n<li>existing micro-defects, exposed tooth roots at the gumline or inflammation<\/li>\n<\/ul>\n\n\n\n<p>What may help:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Potassium salts (e.g. potassium nitrate) and fluoride in tray applications showed reduced bleaching-related sensitivity in a classic study [7].<\/li>\n\n\n\n<li>In some study protocols, photobiomodulation with red light may also reduce sensitivity after bleaching [8] \u2013 but this does not replace identifying the underlying cause and is not a \u201crequired component\u201d of safe bleaching.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2) Gum irritation and \u201cchemical burns\u201d<\/h3>\n\n\n\n<p>If bleaching gel gets onto the gums (too much gel, poorly fitting trays, leaking mouthpieces), it can cause:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>burning, redness<\/li>\n\n\n\n<li>white, burn-like patches<\/li>\n\n\n\n<li>pain\/swelling<\/li>\n<\/ul>\n\n\n\n<p>The risk increases with concentration and contact time.<\/p>\n\n\n\n<p>The risk is higher with unregulated import kits because it\u2019s often unclear:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>how high the actual peroxide concentration is,<\/li>\n\n\n\n<li>whether the pH has been adjusted to be enamel-friendly,<\/li>\n\n\n\n<li>whether a safe application method exists (well-fitting tray, dosage control).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3) Enamel: pH and formulation are critical<\/h3>\n\n\n\n<p>An important point that often gets lost in advertising: it\u2019s not only \u201cperoxide yes\/no\u201d \u2013 pH and the overall formulation also influence how much stress enamel is under.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Peroxides act oxidatively \u2013 that\u2019s the intended mechanism.<\/li>\n\n\n\n<li>At the same time, a pH that is too low (acidic) and\/or excessive or overly long use can measurably alter the tooth surface (e.g. microhardness, roughness).<\/li>\n<\/ul>\n\n\n\n<p>A study on pH-optimised peroxide gels suggests that pH-optimised formulations may preserve enamel microhardness better than unfavourably formulated products [4]. This is a strong argument for not treating whitening as a \u201cDIY chemistry project\u201d, but as a medical\/cosmetic product with quality requirements.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4) The real risk: overdosed or incorrectly labelled products<\/h3>\n\n\n\n<p>Professional articles and regulatory reports have been warning for years about whitening products that:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>exceed permitted limits,<\/li>\n\n\n\n<li>are incompletely labelled,<\/li>\n\n\n\n<li>are sold without a traceable EU responsible entity [2,5].<\/li>\n<\/ul>\n\n\n\n<p>The EU publishes recalls and warnings, for example via Safety Gate \u2013 including cases with clearly excessive peroxide levels and the risk of mucosal damage [6].<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">EU rules on hydrogen peroxide: explained briefly<\/h2>\n\n\n\n<p>In the EU (simplified) [1]:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Up to 0.1% H\u2082O\u2082 (or an equivalent amount released): products can generally be supplied freely to consumers.<\/li>\n\n\n\n<li>0.1\u20136% H\u2082O\u2082: supply only through dentists, with requirements for first use and an age limit.<\/li>\n\n\n\n<li>Under 18: tooth bleaching products containing H\u2082O\u2082 are not intended.<\/li>\n<\/ul>\n\n\n\n<p>What does that mean in practice?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If an online whitening kit promises \u201cfast professional results\u201d and lists Hydrogen Peroxide as an ingredient, it is very likely not permitted as an OTC product in the EU \u2013 or the labelling is not trustworthy.<\/li>\n\n\n\n<li>This is where the biggest safety problems arise: not the substance alone, but a combination of too high a concentration, poor quality assurance, incorrect use and lack of supervision.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to use peroxide-containing whitening products as safely as possible<\/h2>\n\n\n\n<p>If you\u2019re interested in peroxide bleaching (despite alternatives), these steps are practical and protective:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1) Beforehand: check the cause rather than \u201cbleaching over it\u201d<\/h3>\n\n\n\n<p>Have the following assessed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Are there caries, cracks, leaking fillings or exposed tooth roots at the gumline?<\/li>\n\n\n\n<li>Is there gingivitis\/periodontitis?<\/li>\n\n\n\n<li>Is this extrinsic staining (professional dental cleaning may be enough) or intrinsic staining?<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2) Product quality: EU-compliant, pH-friendly, transparent labelling<\/h3>\n\n\n\n<p>Look for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>clear manufacturer\/importer details within the EU<\/li>\n\n\n\n<li>a complete INCI\/ingredient list<\/li>\n\n\n\n<li>clear instructions for use and warning texts<\/li>\n\n\n\n<li>a reputable source (dental practice or vetted providers)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3) Use: less is often more<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Follow contact times strictly (don\u2019t \u201cdouble\u201d them to get whiter faster).<\/li>\n\n\n\n<li>Don\u2019t get gel on the gums; remove any excess immediately.<\/li>\n\n\n\n<li>If you have pain\/signs of chemical burns: stop immediately and have it checked by a dentist.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4) Manage sensitivity<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Take breaks rather than pushing through.<\/li>\n\n\n\n<li>Products\/trays with desensitising additives (e.g. potassium nitrate\/fluoride) may be helpful [7].<\/li>\n\n\n\n<li>After bleaching, focus on gentle, enamel-friendly care (e.g. hydroxyapatite or fluoride \u2013 depending on individual advice).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Alternatives to hydrogen peroxide (if you want to start \u201cgentler\u201d)<\/h2>\n\n\n\n<p>Not every whitening approach has to involve peroxide. Depending on your goal, the following can make sense:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Professional dental cleaning (often the most effective first step for extrinsic deposits)<\/li>\n\n\n\n<li>PAP-based whitening products (peroxide-free; increasingly studied, often with a lower sensitivity rate \u2013 depending on the formulation) [3]<\/li>\n\n\n\n<li>Hydroxyapatite for surface smoothing\/optical brightening and as a \u201ccare\u201d component (not classic bleaching)<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ: Common questions about hydrogen peroxide<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Is hydrogen peroxide inherently \u201charmful\u201d?<\/h3>\n\n\n\n<p>No. In controlled doses and an appropriate formulation, H\u2082O\u2082 can whiten effectively. It becomes problematic with overdosing, incorrect use, poor pH design or unclear imported products [2,4\u20136].<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can I whiten my teeth myself with 3% hydrogen peroxide from the pharmacy?<\/h3>\n\n\n\n<p>This is clearly not recommended. These solutions are not formulated as tooth-bleaching products, can irritate the oral mucosa and, without protective measures, can easily come into contact with the gums. In addition, use is not standardised \u2013 the risk is high and the benefit is unclear. A dentist-supervised option or a tested alternative is safer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What should I do if I get \u201cwhite spots\u201d on my gums after whitening?<\/h3>\n\n\n\n<p>This may be chemical irritation\/burning caused by contact with the gel. It usually improves within a few days, but should be assessed by a dentist \u2013 especially if there is pain, swelling or open sores.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How long does peroxide bleaching last?<\/h3>\n\n\n\n<p>This varies a lot (diet, smoking, oral hygiene, starting shade). Months to more than a year is often possible, but \u201cpermanent\u201d is rare \u2013 and repeat treatments shouldn\u2019t be done too frequently to minimise sensitivity and enamel stress.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p>Hydrogen peroxide is one of the best-studied and most effective active ingredients for chemical tooth bleaching. At the same time, it is strictly regulated for exactly that reason: even relatively small mistakes in concentration, pH, application or product quality can lead to tooth sensitivity, mucosal irritation and, in extreme cases, damage [1,2,4\u20136].<\/p>\n\n\n\n<p>If you want peroxide-based whitening, a dental check-up and an EU-compliant product with transparent labelling are the most important safety factors. For many people \u2013 especially those with sensitive teeth \u2013 peroxide-free alternatives or professional cleaning may be the better place to start.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sources<\/h2>\n\n\n\n<p>[1] European Parliament and Council (2009). Regulation (EC) No 1223\/2009 on cosmetic products (including rules on peroxides in tooth whiteners). Eur-Lex. <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/eur-lex.europa.eu\/legal-content\/DE\/TXT\/?uri=CELEX:32009R1223\">https:\/\/eur-lex.europa.eu\/legal-content\/DE\/TXT\/?uri=CELEX:32009R1223<\/a><\/p>\n\n\n\n<p>[2] Greenwall-Cohen, J. et al. (2019). BDJ study on dangers of teeth whitening products prompts large response. British Dental Journal, 226(6), 391. <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/www.nature.com\/articles\/s41415-019-0188-8\">https:\/\/www.nature.com\/articles\/s41415-019-0188-8<\/a><\/p>\n\n\n\n<p>[3] M\u00fcller-Heupt, L. K. et al. (2023). Effectiveness and safety of over-the-counter tooth-whitening agents compared to hydrogen peroxide in vitro. International Journal of Molecular Sciences, 24(3), 1956. <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC9915942\/\">https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC9915942\/<\/a><\/p>\n\n\n\n<p>[4] Malki, M. et al. (2021). pH-optimised peroxide gels preserve enamel microhardness during bleaching. Journal of Dentistry, 110, 103693. <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC8700120\/\">https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC8700120\/<\/a><\/p>\n\n\n\n<p>[5] Kristensen, G. T. et al. (2021). Survey and risk assessment of teeth-whitening products for personal use. Danish Environmental Protection Agency (Report No. 186). <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/www2.mst.dk\/Udgiv\/publications\/2021\/09\/978-87-7038-340-0.pdf\">https:\/\/www2.mst.dk\/Udgiv\/publications\/2021\/09\/978-87-7038-340-0.pdf<\/a><\/p>\n\n\n\n<p>[6] EU Safety Gate (RAPEX) (2024). Example of an alert on whitening products with excessive peroxide (KISSION Teeth Whitening). <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/ec.europa.eu\/safety-gate-alerts\/screen\/webReport\/alertDetail\/10011691?lang=en\">https:\/\/ec.europa.eu\/safety-gate-alerts\/screen\/webReport\/alertDetail\/10011691?lang=en<\/a><\/p>\n\n\n\n<p>[7] Haywood, V. B. et al. (2001). Tray delivery of potassium nitrate-fluoride to reduce bleaching sensitivity. Quintessence International, 32(2), 105\u2013109. <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/12066670\/\">https:\/\/pubmed.ncbi.nlm.nih.gov\/12066670\/<\/a><\/p>\n\n\n\n<p>[8] de Oliveira, R. C. et al. (2020). Photobiomodulation with red-light reduces bleaching-induced hypersensitivity: randomised clinical trial. Lasers in Medical Science, 35(8), 1807\u20131815. <a target=\"_blank\" rel=\"noreferrer noopener\" href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC8233986\/\">https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC8233986\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>HYDROGEN PEROXIDE (H\u2082O\u2082) \u2013 AT A GLANCE Disclaimer: This article is for information and does not replace personalised advice. If you want to bleach your teeth, have your teeth and gums checked by a dentist first \u2013 especially if you have sensitivity, gum recession, fillings\/crowns or existing damage. What is hydrogen peroxide? Hydrogen peroxide (H\u2082O\u2082) &#8230; <a title=\"Hydrogen peroxide in oral care products: effects, safety and EU rules\" class=\"read-more\" href=\"https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/\" aria-label=\"Read more about Hydrogen peroxide in oral care products: effects, safety and EU rules\">Mehr erfahren<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[106],"tags":[],"class_list":{"0":"post-13463","1":"page","2":"type-page","3":"status-publish","5":"category-ingredients"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hydrogen peroxide in oral care products: effects, safety and EU rules | Dental Test Lab<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hydrogen peroxide in oral care products: effects, safety and EU rules | Dental Test Lab\" \/>\n<meta property=\"og:description\" content=\"HYDROGEN PEROXIDE (H\u2082O\u2082) \u2013 AT A GLANCE Disclaimer: This article is for information and does not replace personalised advice. If you want to bleach your teeth, have your teeth and gums checked by a dentist first \u2013 especially if you have sensitivity, gum recession, fillings\/crowns or existing damage. What is hydrogen peroxide? Hydrogen peroxide (H\u2082O\u2082) ... Mehr erfahren\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/\" \/>\n<meta property=\"og:site_name\" content=\"Dental Test Lab\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-18T16:16:14+00:00\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/hydrogen-peroxide-in-oral-care-products\\\/\",\"url\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/hydrogen-peroxide-in-oral-care-products\\\/\",\"name\":\"Hydrogen peroxide in oral care products: effects, safety and EU rules | Dental Test Lab\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/#website\"},\"datePublished\":\"2025-12-18T12:19:32+00:00\",\"dateModified\":\"2025-12-18T16:16:14+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/hydrogen-peroxide-in-oral-care-products\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/hydrogen-peroxide-in-oral-care-products\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/hydrogen-peroxide-in-oral-care-products\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dental Test Lab\",\"item\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ingredients\",\"item\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/ingredients\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Hydrogen peroxide in oral care products: effects, safety and EU rules\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/\",\"name\":\"Dental Test Lab\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/#organization\",\"name\":\"Dental Test Lab\",\"url\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/dentaltestlab.com\\\/wp-content\\\/uploads\\\/2023\\\/10\\\/cropped-THE-DERMA-CHECK-FAVICON-NEW-1.png\",\"contentUrl\":\"https:\\\/\\\/dentaltestlab.com\\\/wp-content\\\/uploads\\\/2023\\\/10\\\/cropped-THE-DERMA-CHECK-FAVICON-NEW-1.png\",\"width\":512,\"height\":512,\"caption\":\"Dental Test Lab\"},\"image\":{\"@id\":\"https:\\\/\\\/dentaltestlab.com\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Hydrogen peroxide in oral care products: effects, safety and EU rules | Dental Test Lab","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/","og_locale":"en_US","og_type":"article","og_title":"Hydrogen peroxide in oral care products: effects, safety and EU rules | Dental Test Lab","og_description":"HYDROGEN PEROXIDE (H\u2082O\u2082) \u2013 AT A GLANCE Disclaimer: This article is for information and does not replace personalised advice. If you want to bleach your teeth, have your teeth and gums checked by a dentist first \u2013 especially if you have sensitivity, gum recession, fillings\/crowns or existing damage. What is hydrogen peroxide? Hydrogen peroxide (H\u2082O\u2082) ... Mehr erfahren","og_url":"https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/","og_site_name":"Dental Test Lab","article_modified_time":"2025-12-18T16:16:14+00:00","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/","url":"https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/","name":"Hydrogen peroxide in oral care products: effects, safety and EU rules | Dental Test Lab","isPartOf":{"@id":"https:\/\/dentaltestlab.com\/en\/#website"},"datePublished":"2025-12-18T12:19:32+00:00","dateModified":"2025-12-18T16:16:14+00:00","breadcrumb":{"@id":"https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/dentaltestlab.com\/en\/hydrogen-peroxide-in-oral-care-products\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dental Test Lab","item":"https:\/\/dentaltestlab.com\/en\/"},{"@type":"ListItem","position":2,"name":"Ingredients","item":"https:\/\/dentaltestlab.com\/en\/ingredients\/"},{"@type":"ListItem","position":3,"name":"Hydrogen peroxide in oral care products: effects, safety and EU rules"}]},{"@type":"WebSite","@id":"https:\/\/dentaltestlab.com\/en\/#website","url":"https:\/\/dentaltestlab.com\/en\/","name":"Dental Test Lab","description":"","publisher":{"@id":"https:\/\/dentaltestlab.com\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/dentaltestlab.com\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/dentaltestlab.com\/en\/#organization","name":"Dental Test Lab","url":"https:\/\/dentaltestlab.com\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/dentaltestlab.com\/en\/#\/schema\/logo\/image\/","url":"https:\/\/dentaltestlab.com\/wp-content\/uploads\/2023\/10\/cropped-THE-DERMA-CHECK-FAVICON-NEW-1.png","contentUrl":"https:\/\/dentaltestlab.com\/wp-content\/uploads\/2023\/10\/cropped-THE-DERMA-CHECK-FAVICON-NEW-1.png","width":512,"height":512,"caption":"Dental Test Lab"},"image":{"@id":"https:\/\/dentaltestlab.com\/en\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/dentaltestlab.com\/en\/wp-json\/wp\/v2\/pages\/13463","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dentaltestlab.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/dentaltestlab.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/dentaltestlab.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/dentaltestlab.com\/en\/wp-json\/wp\/v2\/comments?post=13463"}],"version-history":[{"count":1,"href":"https:\/\/dentaltestlab.com\/en\/wp-json\/wp\/v2\/pages\/13463\/revisions"}],"predecessor-version":[{"id":13471,"href":"https:\/\/dentaltestlab.com\/en\/wp-json\/wp\/v2\/pages\/13463\/revisions\/13471"}],"wp:attachment":[{"href":"https:\/\/dentaltestlab.com\/en\/wp-json\/wp\/v2\/media?parent=13463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dentaltestlab.com\/en\/wp-json\/wp\/v2\/categories?post=13463"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dentaltestlab.com\/en\/wp-json\/wp\/v2\/tags?post=13463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}