{"id":633,"date":"2026-08-20T17:05:41","date_gmt":"2026-08-20T15:05:41","guid":{"rendered":"https:\/\/4beauty.de\/glossar\/erbium-yag-laser\/"},"modified":"2026-08-20T17:24:21","modified_gmt":"2026-08-20T15:24:21","slug":"erbium-yag-laser","status":"publish","type":"glossary","link":"https:\/\/4beauty.de\/en\/glossar\/erbium-yag-laser\/","title":{"rendered":"Erbium:YAG laser: Precise skin rejuvenation with a short recovery time"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li class=\"\"><a href=\"#definition-was-ist-ein-erbium-yag-laser\">Definition: What is an erbium:YAG laser?<\/a><\/li><li class=\"\"><a href=\"#der-aufbau-und-die-funktionsweise\">The structure and how it works<\/a><\/li><li class=\"\"><a href=\"#das-wirkprinzip-kalte-ablation-mit-prazision\">The operating principle: \u201eCold\u201c ablation with precision<\/a><\/li><li class=\"\"><a href=\"#erbium-yag-laser-vs-co2-laser-der-entscheidende-unterschied\">Erbium:YAG laser vs. CO\u2082 laser: The key difference<\/a><\/li><li class=\"\"><a href=\"#anwendungsbereiche-wann-ist-der-erbium-yag-laser-die-beste-wahl\">Areas of application: When is the Erbium:YAG laser the best choice?<\/a><\/li><li class=\"\"><a href=\"#die-heilungsphase-kurzere-ausfallzeit-als-vorteil\">The recovery phase: shorter downtime is an advantage<\/a><\/li><li class=\"\"><a href=\"#risiken-und-finanzielle-absicherung-durch-eine-folgekostenversicherung\">Risks and financial protection through follow-up costs insurance<\/a><\/li><li class=\"\"><a href=\"#mogliche-komplikationen-und-schutz\">Possible complications and prevention<\/a><\/li><li class=\"\"><a href=\"#haufig-gestellte-fragen-faq\">Frequently Asked Questions (FAQ)<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<div class=\"wp-block-group is-style-boxed has-white-warm-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\"><strong>Important note<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This article is for information purposes only and is not a substitute for a medical diagnosis or advice. If you are unsure, or if you require a personalised treatment plan, it is essential that you consult a qualified specialist.<\/p>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">In modern aesthetic dermatology, lasers are the treatment of choice for deep skin rejuvenation. However, not all lasers are the same. Whilst the CO\u2082 laser is regarded as the \u201epowerful all-rounder\u201c, the erbium:YAG laser has established itself as the precision instrument for a gentler yet highly effective treatment. Its unique physical properties enable the ablation of skin layers with micrometre precision, whilst minimising heat stress on the surrounding tissue.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"definition-was-ist-ein-erbium-yag-laser\">Definition: What is an erbium:YAG laser?<\/h2>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<h2 class=\"wp-block-heading\" id=\"der-aufbau-und-die-funktionsweise\">The structure and how it works<\/h2>\n\n<p class=\"wp-block-paragraph\">The erbium:YAG laser (Er:YAG for short) is an ablative solid-state laser used in aesthetic dermatology for skin resurfacing. Its specific wavelength of 2940 nm is absorbed extremely efficiently by the water in the skin cells.<\/p>\n\n<p class=\"wp-block-paragraph\">This results in the tissue being vaporised (ablated) at an explosive rate, which occurs so rapidly that hardly any residual heat penetrates into the deeper layers of the skin.<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser.png\" alt=\"Treatment with an erbium YAG laser\" class=\"wp-image-435 size-full\" srcset=\"https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser.png 1024w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-150x150.png 150w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-300x300.png 300w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-768x768.png 768w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-12x12.png 12w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-120x120.png 120w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-40x40.png 40w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-80x80.png 80w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-160x160.png 160w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-500x500.png 500w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-1000x1000.png 1000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"das-wirkprinzip-kalte-ablation-mit-prazision\">The operating principle: \u201eCold\u201c ablation with precision<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The strength of the erbium:YAG laser lies in its high affinity for water, the main component of the skin.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Energy absorption:<\/strong> The laser pulse is absorbed by the water in the outermost layer of the skin.<\/li>\n\n\n\n<li><strong>Explosive vapourisation:<\/strong> The energy causes the water within the cells to evaporate instantly. This removes the layer of skin without severely burning or charring the surrounding tissue. This is therefore referred to as a <strong>\u201ecold\u201c ablation<\/strong>.<\/li>\n\n\n\n<li><strong>Low coagulation:<\/strong> Unlike other lasers, the Er:YAG produces only a minimal thermal necrosis zone (heat damage). This reduces side effects and speeds up healing.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"erbium-yag-laser-vs-co2-laser-der-entscheidende-unterschied\">Erbium:YAG laser vs. CO\u2082 laser: The key difference<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Characteristic<\/th><th>Erbium:YAG laser<\/th><th>CO\u2082 laser<\/th><\/tr><\/thead><tbody><tr><td>Mechanism of action<\/td><td>Pure ablation (\u201ecold\u201c vapourisation)<\/td><td>Ablation + intense coagulation (heat)<\/td><\/tr><tr><td>Precision<\/td><td>Extremely high; can be removed in layers<\/td><td>High, but with greater heat dispersion<\/td><\/tr><tr><td>Healing time<\/td><td>Shorter (approx. 3\u201310 days)<\/td><td>Longer (approx. 7\u201321 days)<\/td><\/tr><tr><td>Skin tightening<\/td><td>Less immediate tightening effect<\/td><td>Strong immediate firming effect (collagen contraction)<\/td><\/tr><tr><td>Ideal for<\/td><td>Superficial wrinkles, acne scars, lesions<\/td><td>Deep wrinkles, severe sun damage, pronounced scars<\/td><\/tr><tr><td>Risk profile<\/td><td>Lower risk of pigmentation disorders<\/td><td>Increased risk of persistent redness and pigmentation disorders<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"anwendungsbereiche-wann-ist-der-erbium-yag-laser-die-beste-wahl\">Areas of application: When is the Erbium:YAG laser the best choice?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Er:YAG is the treatment of choice for precise, superficial corrections. It can be used both <strong>over the entire surface<\/strong> as well as <strong>fractionated<\/strong> (in small dots) can be used.<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-grid wp-container-core-group-is-layout-bb0cbca6 wp-block-group-is-layout-grid\">\n<div class=\"wp-block-group is-style-boxed has-white-warm-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\"><strong>Dermatological surgery<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Removal of benign skin lesions such as warts, xanthelasma (fatty deposits on the eyelids) or age spots.<\/p>\n<\/div>\n\n<div class=\"wp-block-group is-style-boxed has-white-warm-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\"><strong>Wrinkle treatment<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Ideal for fine to medium-depth wrinkles, particularly perioral wrinkles (\u201esmoker\u2019s lines\u201c) around the mouth.<\/p>\n<\/div>\n\n<div class=\"wp-block-group is-style-boxed has-white-warm-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\"><strong>Scar correction<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Highly effective at smoothing raised scars or levelling out acne scars to match the skin\u2019s surface.<\/p>\n<\/div>\n\n<div class=\"wp-block-group is-style-boxed has-white-warm-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\"><strong>Skin Resurfacing<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">For general improvement of skin texture and for the treatment of mild sun damage.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"die-heilungsphase-kurzere-ausfallzeit-als-vorteil\">The recovery phase: shorter downtime is an advantage<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The lower thermal stress on the tissue results in significantly faster healing with fewer complications than with a CO\u2082 laser.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Immediately after treatment:<\/strong> The skin is reddened and oozes slightly.<\/li>\n\n\n\n<li><strong>Days 2\u20135:<\/strong> Fine crusts form on the treated surface.<\/li>\n\n\n\n<li><strong>Days 5\u201310:<\/strong> The scabs fall off, revealing new, pink and very delicate skin underneath.<\/li>\n\n\n\n<li><strong>Subsequent weeks:<\/strong> The slight redness may persist for a few more weeks, but it can be easily covered with make-up.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-group is-style-boxed is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"wp-block-paragraph\"><strong>Sun protection is a must!<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">New skin is extremely sensitive to UV radiation. To prevent pigmentation spots, it is absolutely essential to use sun protection with SPF 50+ consistently for at least three months following treatment.<\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"risiken-und-finanzielle-absicherung-durch-eine-folgekostenversicherung\">Risks and financial protection through follow-up costs insurance<\/h2>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" width=\"1429\" height=\"2560\" src=\"https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-risiken-scaled.png\" alt=\"Erbium YAG laser treatment: Recovery &amp; risks\" class=\"wp-image-434 size-full\" srcset=\"https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-risiken-scaled.png 1429w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-risiken-167x300.png 167w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-risiken-768x1376.png 768w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-risiken-572x1024.png 572w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-risiken-857x1536.png 857w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-risiken-1143x2048.png 1143w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-risiken-7x12.png 7w, https:\/\/4beauty.de\/wp-content\/uploads\/2026\/08\/2026-03_erbium-yag-laser-risiken-22x40.png 22w\" sizes=\"(max-width: 1429px) 100vw, 1429px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h2 class=\"wp-block-heading\" id=\"mogliche-komplikationen-und-schutz\">Possible complications and prevention<\/h2>\n\n<p class=\"wp-block-paragraph\">Despite its gentler approach, ablative laser resurfacing is an invasive procedure that carries certain risks:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Infections:<\/strong> In particular, through herpes viruses (prevention is often necessary).<\/li>\n\n\n\n<li><strong>Pigment changes:<\/strong> Light (hypopigmentation) or dark (hyperpigmentation) patches.<\/li>\n\n\n\n<li><strong>Scarring:<\/strong> In the event of improper use or impaired wound healing.<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">Should such complications require further medical treatment, the costs are often high and are not usually covered by health insurance.<\/p>\n\n<p class=\"wp-block-paragraph\">A policy taken out prior to the procedure <a href=\"https:\/\/4beauty.de\/en\/after-care-insurance\/\">Consequential Costs Insurance<\/a> provides important financial protection here.<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"haufig-gestellte-fragen-faq\">Frequently Asked Questions (FAQ)<\/h2>\n\n\n\n<div data-wp-context=\"{ &quot;autoclose&quot;: false, &quot;accordionItems&quot;: [] }\" data-wp-interactive=\"core\/accordion\" role=\"group\" class=\"wp-block-accordion is-layout-flow wp-block-accordion-is-layout-flow\">\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-1&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-1-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" id=\"accordion-item-1\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Is treatment with the erbium:YAG laser painful?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div aria-labelledby=\"accordion-item-1\" data-wp-bind--hidden=\"state.isHidden\" data-wp-on--beforematch=\"actions.handleBeforeMatch\" id=\"accordion-item-1-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Yes, the treatment is painful and requires effective anaesthesia, e.g. using a strong anaesthetic cream, local injections or, in rare cases, twilight sedation.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-2&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-2-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" id=\"accordion-item-2\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">How many sessions are needed?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div aria-labelledby=\"accordion-item-2\" data-wp-bind--hidden=\"state.isHidden\" data-wp-on--beforematch=\"actions.handleBeforeMatch\" id=\"accordion-item-2-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">A single session is often sufficient for the removal of lesions. For extensive skin rejuvenation, 1\u20133 sessions at intervals of several months may be advisable, depending on the depth of the lesions and the desired result.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-3&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-3-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" id=\"accordion-item-3\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">When will I see the final result?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div aria-labelledby=\"accordion-item-3\" data-wp-bind--hidden=\"state.isHidden\" data-wp-on--beforematch=\"actions.handleBeforeMatch\" id=\"accordion-item-3-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">The first signs of improvement become visible once the scabs have fallen off. However, as the formation of new collagen takes several months, the final result cannot be assessed until 3\u20136 months have passed.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-4&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-4-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" id=\"accordion-item-4\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Is the erbium:YAG laser also suitable for darker skin types?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div aria-labelledby=\"accordion-item-4\" data-wp-bind--hidden=\"state.isHidden\" data-wp-on--beforematch=\"actions.handleBeforeMatch\" id=\"accordion-item-4-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">It is considered safer for darker skin types than the CO\u2082 laser, as the risk of <a href=\"https:\/\/4beauty.de\/en\/glossary\/pigment-disorder\/\">Pigment disorders<\/a> is lower. Nevertheless, treatment in this case requires particular expertise and caution on the part of the doctor.<\/p>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>The erbium:YAG laser is regarded as a precision instrument in aesthetic dermatology and enables ablation with micrometre precision whilst gently renewing the skin.<\/p>","protected":false},"template":"","class_list":["post-633","glossary","type-glossary","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/4beauty.de\/en\/wp-json\/wp\/v2\/glossary\/633","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/4beauty.de\/en\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/4beauty.de\/en\/wp-json\/wp\/v2\/types\/glossary"}],"wp:attachment":[{"href":"https:\/\/4beauty.de\/en\/wp-json\/wp\/v2\/media?parent=633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}