Coretox Masseter Reduction Seoul | Rappoel Clinic Jaw Slimming 2026<\/title><br \/>\n<meta name=\"description\" content=\"Square jaw and wide face reshaped naturally with Coretox botulinum toxin \u2014 results visible in 6\u20138 weeks\">\n<link rel=\"alternate\" hreflang=\"en\" href=\"https:\/\/rappoel-clinic.com\/coretox-masseter-slim-square-jaw-seoul-rappoel-en\/\" \/>\n<link rel=\"alternate\" hreflang=\"zh-TW\" href=\"https:\/\/rappoel-clinic.com\/coretox-masseter-slim-square-jaw-seoul-rappoel-zh\/\" \/>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"MedicalClinic\", \"@id\": \"https:\/\/rappoel-clinic.com\/#clinic\", \"name\": \"Rappoel Dermatology Clinic\", \"alternateName\": [\"Rappoel \u76ae\u819a\u79d1\", \"\ub77c\ud3ec\uc5d8 \ud53c\ubd80\uacfc\"], \"url\": \"https:\/\/rappoel-clinic.com\", \"address\": {\"@type\": \"PostalAddress\", \"streetAddress\": \"77, Seocho-daero\", \"addressLocality\": \"Seocho-gu\", \"addressRegion\": \"Seoul\", \"postalCode\": \"06609\", \"addressCountry\": \"KR\"}, \"geo\": {\"@type\": \"GeoCoordinates\", \"latitude\": 37.4926, \"longitude\": 127.0175}, \"telephone\": \"+82-2-XXXX-XXXX\", \"openingHours\": [\"Mo-Fr 10:00-19:00\", \"Sa 10:00-17:00\"], \"medicalSpecialty\": \"Dermatology\", \"availableService\": [{\"@type\": \"MedicalProcedure\", \"name\": \"Thread Lift (Aptos)\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Hyaluronic Acid Filler\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Botulinum Toxin (Botox)\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Ultherapy \/ HIFU\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Skin Booster (Juvelook \/ Exosomes)\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Laser Skin Treatment\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Onda Coolwaves Body Contouring\"}], \"sameAs\": [\"https:\/\/www.instagram.com\/rappoel_official\"]}<\/script><br \/>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Article\", \"headline\": \"Coretox Masseter Reduction Seoul | Rappoel Clinic Jaw Slimming 2026\", \"description\": \"Square jaw and wide face reshaped naturally with Coretox botulinum toxin \u2014 results visible in 6\u20138 weeks\", \"inLanguage\": \"en\", \"author\": {\"@type\": \"Organization\", \"name\": \"Rappoel Dermatology Clinic\"}, \"publisher\": {\"@type\": \"Organization\", \"name\": \"Rappoel Dermatology Clinic\", \"logo\": {\"@type\": \"ImageObject\", \"url\": \"https:\/\/rappoel-clinic.com\/wp-content\/uploads\/2026\/04\/favicon-512.png\"}}, \"about\": {\"@id\": \"https:\/\/rappoel-clinic.com\/#clinic\"}}<\/script><br \/>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does masseter Coretox hurt?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Topical numbing cream is applied beforehand. Most patients describe the sensation as a mild dull pressure. Discomfort typically resolves within a few hours.\"}}, {\"@type\": \"Question\", \"name\": \"Will I be able to chew normally after the injection?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Masseter Coretox reduces muscle bulk, not jaw function. You may notice slightly reduced chewing force for the first 2\u20134 weeks, which is temporary and normal.\"}}, {\"@type\": \"Question\", \"name\": \"How long do results last?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"First treatment typically lasts 4\u20136 months. With repeated sessions, the masseter tends to stay smaller longer \u2014 some patients extend intervals to 8\u201312 months over time.\"}}, {\"@type\": \"Question\", \"name\": \"Can I combine masseter Coretox with other treatments?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. A popular combination at Rappoel is masseter slimming plus chin filler (The Chaeum), achieving a V-line effect without surgery.\"}}, {\"@type\": \"Question\", \"name\": \"What's the right dose for first-timers?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Rappoel physicians customize dosage based on individual masseter thickness. First-time patients typically receive a conservative dose, then adjust at follow-up.\"}}, {\"@type\": \"Question\", \"name\": \"Where in Seoul can I get masseter Botox?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Rappoel Dermatology Clinic is located near Gangnam Station in Seocho-gu. We offer WeChat and Line consultation in Chinese and English.\"}}]}<\/script><\/p>\n<style>\n*{box-sizing:border-box;margin:0;padding:0}\nbody{font-family:'PingFang SC','Noto Sans KR',sans-serif;background:#fffcf7;color:#3d2e1e;line-height:1.8}\n.wrap{max-width:677px;margin:0 auto;padding:32px 20px 60px}\n.banner{background:#FFF8EC;text-align:center;padding:36px 20px 28px;margin-bottom:36px;border-bottom:1px solid #e8d5c0}\n.banner-tag{font-size:11px;letter-spacing:3px;color:#8B7355;text-transform:uppercase;margin-bottom:12px}\n.banner h1{font-size:24px;color:#3d2e1e;line-height:1.4;margin-bottom:12px}\n.banner .sub{font-size:13px;color:#6b5240;line-height:1.7}\nh2{font-size:19px;color:#3d2e1e;margin:32px 0 14px;padding-bottom:8px;border-bottom:1px solid #e8d5c0}\nh3{font-size:16px;color:#3d2e1e;margin:22px 0 10px}\np{font-size:15px;color:#555;line-height:1.9;margin-bottom:14px}\n.highlight{background:#fff;border:1px solid #f0e8dc;border-left:3px solid #D4A574;padding:16px 20px;margin:22px 0;border-radius:0 6px 6px 0}\n.highlight p{margin:0;font-size:14px;color:#6b5240}\n.card{background:#F5E6C8;border:1px solid #e8d5c0;border-radius:8px;padding:18px 22px;margin:16px 0}\n.card-title{font-size:13px;font-weight:700;color:#3d2e1e;margin-bottom:6px}\n.card p{font-size:14px;margin:0}\n.faq-item{margin:14px 0;border-bottom:1px solid #f0e8dc;padding-bottom:14px}\n.faq-q{font-weight:700;color:#3d2e1e;font-size:15px;margin-bottom:6px}\n.faq-a{font-size:14px;color:#555;line-height:1.8}\n.cta{background:#F5E6C8;text-align:center;padding:32px 20px;margin-top:40px;border-radius:8px}\n.cta h3{font-size:17px;color:#3d2e1e;margin-bottom:8px}\n.cta p{font-size:13px;color:#6b5240;margin-bottom:4px}\nimg{max-width:100%;height:auto;display:block;margin:20px auto;border-radius:6px}\nul,ol{padding-left:22px;margin-bottom:14px}\nli{font-size:15px;color:#555;line-height:1.9;margin-bottom:4px}\n.schema-block{display:none}\n@media(max-width:600px){.wrap{padding:20px 14px 40px}.banner h1{font-size:20px}}\n<\/style>\n<p><\/head><br \/>\n<body><\/p>\n<div class=\"wrap\">\n<div class=\"banner\">\n<div class=\"banner-tag\">Botox<\/div>\n<h1>Coretox Masseter Reduction Seoul | Rappoel Clinic Jaw Slimming 2026<\/h1>\n<div class=\"sub\">Square jaw and wide face reshaped naturally with Coretox botulinum toxin \u2014 results visible in 6\u20138 weeks<\/div>\n<\/p><\/div>\n<h2>Is Your Wide Face Caused by Muscles, Not Bones?<\/h2>\n<p>Many people assume a wide or square face is a bone structure issue \u2014 but in over 60% of cases, the real culprit is <strong>masseter muscle hypertrophy<\/strong>. Habitual teeth grinding, jaw clenching, and chewing hard foods thicken the masseter over time, creating a wide lower face visible from both the front and side.<\/p>\n<p>The good news: this muscle-type square jaw responds exceptionally well to botulinum toxin injection. <strong>Rappoel Dermatology Clinic<\/strong> in Seoul uses <strong>Coretox<\/strong> \u2014 a premium Korean-manufactured botulinum toxin \u2014 to precisely reduce masseter volume, slimming the lower face naturally within 6\u20138 weeks.<\/p>\n<h2>Why Coretox Instead of Regular Botox?<\/h2>\n<p>Coretox is produced by Korean biotech firm Medytox and is entirely free of animal-derived proteins, making it one of the purest formulations available. Its high purity means lower allergy risk and more predictable diffusion \u2014 especially important for the masseter, where precision matters for facial symmetry. Compared to traditional Botox or Dysport, Coretox offers tighter control over dosage spread in high-volume muscle areas.<\/p>\n<h2>What to Expect: Timeline After Injection<\/h2>\n<ul>\n<li><strong>Week 1\u20132<\/strong>: Mild tightness or slight swelling at injection site (normal)<\/li>\n<li><strong>Week 4<\/strong>: Chewing strength begins to decrease noticeably<\/li>\n<li><strong>Week 6\u20138<\/strong>: Masseter visibly smaller; jawline looks slimmer from front and side<\/li>\n<li><strong>Month 4\u20136<\/strong>: Peak results; repeat treatment recommended to maintain effect<\/li>\n<\/ul>\n<h2>Rappoel Clinic Procedure Overview<\/h2>\n<ul>\n<li>Pre-treatment: Physician palpates masseter thickness and assesses bilateral symmetry<\/li>\n<li>Topical anesthesia applied for 20 minutes before injection<\/li>\n<li>Bilateral injection with dose customized to masseter size<\/li>\n<li>Post-treatment observation: ~30 min, then patient may leave immediately<\/li>\n<\/ul>\n<h2>Post-Treatment Guidelines<\/h2>\n<ul>\n<li>Avoid lying flat or pressing the injection area for 4 hours after treatment<\/li>\n<li>No strenuous exercise, sauna, or hot bath for 48 hours<\/li>\n<li>First-time patients receive conservative dosing; top-up available at 3 months<\/li>\n<li>Patients with bruxism may benefit from combining a night guard for longer-lasting results<\/li>\n<\/ul>\n<h2>Clinic Information<\/h2>\n<ul>\n<li><strong>Address<\/strong>: 5F, 24, Seocho-daero 77-gil, Seocho-gu, Seoul (3 min walk from Gangnam Station Exit 10)<\/li>\n<li><strong>Contact<\/strong>: WeChat rappoelkr \/ Line rappoelkr<\/li>\n<li><strong>Pricing<\/strong>: Quoted individually based on masseter volume and dose required<\/li>\n<\/ul>\n<h2>Frequently Asked Questions<\/h2>\n<div class=\"faq-item\">\n<div class=\"faq-q\">Does masseter Coretox hurt?<\/div>\n<div class=\"faq-a\">Topical numbing cream is applied beforehand. Most patients describe the sensation as a mild dull pressure. Discomfort typically resolves within a few hours.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">Will I be able to chew normally after the injection?<\/div>\n<div class=\"faq-a\">Yes. Masseter Coretox reduces muscle bulk, not jaw function. You may notice slightly reduced chewing force for the first 2\u20134 weeks, which is temporary and normal.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">How long do results last?<\/div>\n<div class=\"faq-a\">First treatment typically lasts 4\u20136 months. With repeated sessions, the masseter tends to stay smaller longer \u2014 some patients extend intervals to 8\u201312 months over time.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">Can I combine masseter Coretox with other treatments?<\/div>\n<div class=\"faq-a\">Absolutely. A popular combination at Rappoel is masseter slimming plus chin filler (The Chaeum), achieving a V-line effect without surgery.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">What’s the right dose for first-timers?<\/div>\n<div class=\"faq-a\">Rappoel physicians customize dosage based on individual masseter thickness. First-time patients typically receive a conservative dose, then adjust at follow-up.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">Where in Seoul can I get masseter Botox?<\/div>\n<div class=\"faq-a\">Rappoel Dermatology Clinic is located near Gangnam Station in Seocho-gu. We offer WeChat and Line consultation in Chinese and English.<\/div>\n<\/div>\n<div class=\"cta\">\n<h3>Book Your Masseter Slimming Consultation<\/h3>\n<p>\ud83d\udccd 77, Seocho-daero, Seocho-gu, Seoul, South Korea<\/p>\n<p>\ud83d\udd50 Mon\u2013Fri 10:00\u201319:00 \u00b7 Sat 10:00\u201317:00<\/p>\n<p>\ud83d\udcac WeChat Main: rappoelkr | WeChat Backup: rappoelkr2 | LINE: rappoelkr<\/p>\n<p style=\"margin-top:16px;font-size:13px;color:#8B7355;\">Scan to connect with us<\/p>\n<div style=\"display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:10px;\">\n<div style=\"text-align:center;\">\n <img decoding=\"async\" src=\"https:\/\/rappoel-clinic.com\/wp-content\/uploads\/2026\/04\/Rappoel\u5fae\u4fe1\u4e8c\u7ef4\u7801\uff08\u4e3b\u53f7\uff09-1.png\" alt=\"WeChat Main QR Code\" style=\"width:120px;height:120px;border-radius:6px;\" \/><\/p>\n<p style=\"font-size:11px;color:#6b5240;margin-top:4px;\">WeChat (Main)<\/p>\n<\/p><\/div>\n<div style=\"text-align:center;\">\n <img decoding=\"async\" src=\"https:\/\/rappoel-clinic.com\/wp-content\/uploads\/2026\/04\/Rappoel\u5fae\u4fe1\u4e8c\u7ef4\u7801\uff08\u5907\u7528\u53f7\uff09-1.png\" alt=\"WeChat Backup QR Code\" style=\"width:120px;height:120px;border-radius:6px;\" \/><\/p>\n<p style=\"font-size:11px;color:#6b5240;margin-top:4px;\">WeChat (Backup)<\/p>\n<\/p><\/div>\n<div style=\"text-align:center;\">\n <img decoding=\"async\" src=\"https:\/\/rappoel-clinic.com\/wp-content\/uploads\/2026\/04\/Line\u4e8c\u7ef4\u7801-1.jpg\" alt=\"LINE QR Code\" style=\"width:120px;height:120px;border-radius:6px;\" \/><\/p>\n<p style=\"font-size:11px;color:#6b5240;margin-top:4px;\">LINE<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<\/div>\n<p><\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Square jaw and wide face reshaped naturally with Coretox botulinum toxin \u2014 results visible in 6\u20138 weeks<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66],"tags":[],"class_list":["post-1008","post","type-post","status-publish","format-standard","hentry","category-botox-en"],"_links":{"self":[{"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/posts\/1008","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/comments?post=1008"}],"version-history":[{"count":1,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/posts\/1008\/revisions"}],"predecessor-version":[{"id":1010,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/posts\/1008\/revisions\/1010"}],"wp:attachment":[{"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/media?parent=1008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/categories?post=1008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/tags?post=1008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

{"id":1008,"date":"2026-06-01T11:06:00","date_gmt":"2026-06-01T02:06:00","guid":{"rendered":"https:\/\/rappoel-clinic.com\/coretox-masseter-slim-square-jaw-seoul-rappoel-en\/"},"modified":"2026-06-01T11:06:03","modified_gmt":"2026-06-01T02:06:03","slug":"coretox-masseter-slim-square-jaw-seoul-rappoel-en","status":"publish","type":"post","link":"https:\/\/rappoel-clinic.com\/en\/coretox-masseter-slim-square-jaw-seoul-rappoel-en\/","title":{"rendered":"Coretox Masseter Reduction Seoul | Rappoel Clinic Jaw Slimming 2026"},"content":{"rendered":"

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\nCoretox Masseter Reduction Seoul | Rappoel Clinic Jaw Slimming 2026<\/title><br \/>\n<meta name=\"description\" content=\"Square jaw and wide face reshaped naturally with Coretox botulinum toxin \u2014 results visible in 6\u20138 weeks\">\n<link rel=\"alternate\" hreflang=\"en\" href=\"https:\/\/rappoel-clinic.com\/coretox-masseter-slim-square-jaw-seoul-rappoel-en\/\" \/>\n<link rel=\"alternate\" hreflang=\"zh-TW\" href=\"https:\/\/rappoel-clinic.com\/coretox-masseter-slim-square-jaw-seoul-rappoel-zh\/\" \/>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"MedicalClinic\", \"@id\": \"https:\/\/rappoel-clinic.com\/#clinic\", \"name\": \"Rappoel Dermatology Clinic\", \"alternateName\": [\"Rappoel \u76ae\u819a\u79d1\", \"\ub77c\ud3ec\uc5d8 \ud53c\ubd80\uacfc\"], \"url\": \"https:\/\/rappoel-clinic.com\", \"address\": {\"@type\": \"PostalAddress\", \"streetAddress\": \"77, Seocho-daero\", \"addressLocality\": \"Seocho-gu\", \"addressRegion\": \"Seoul\", \"postalCode\": \"06609\", \"addressCountry\": \"KR\"}, \"geo\": {\"@type\": \"GeoCoordinates\", \"latitude\": 37.4926, \"longitude\": 127.0175}, \"telephone\": \"+82-2-XXXX-XXXX\", \"openingHours\": [\"Mo-Fr 10:00-19:00\", \"Sa 10:00-17:00\"], \"medicalSpecialty\": \"Dermatology\", \"availableService\": [{\"@type\": \"MedicalProcedure\", \"name\": \"Thread Lift (Aptos)\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Hyaluronic Acid Filler\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Botulinum Toxin (Botox)\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Ultherapy \/ HIFU\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Skin Booster (Juvelook \/ Exosomes)\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Laser Skin Treatment\"}, {\"@type\": \"MedicalProcedure\", \"name\": \"Onda Coolwaves Body Contouring\"}], \"sameAs\": [\"https:\/\/www.instagram.com\/rappoel_official\"]}<\/script><br \/>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Article\", \"headline\": \"Coretox Masseter Reduction Seoul | Rappoel Clinic Jaw Slimming 2026\", \"description\": \"Square jaw and wide face reshaped naturally with Coretox botulinum toxin \u2014 results visible in 6\u20138 weeks\", \"inLanguage\": \"en\", \"author\": {\"@type\": \"Organization\", \"name\": \"Rappoel Dermatology Clinic\"}, \"publisher\": {\"@type\": \"Organization\", \"name\": \"Rappoel Dermatology Clinic\", \"logo\": {\"@type\": \"ImageObject\", \"url\": \"https:\/\/rappoel-clinic.com\/wp-content\/uploads\/2026\/04\/favicon-512.png\"}}, \"about\": {\"@id\": \"https:\/\/rappoel-clinic.com\/#clinic\"}}<\/script><br \/>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does masseter Coretox hurt?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Topical numbing cream is applied beforehand. Most patients describe the sensation as a mild dull pressure. Discomfort typically resolves within a few hours.\"}}, {\"@type\": \"Question\", \"name\": \"Will I be able to chew normally after the injection?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Masseter Coretox reduces muscle bulk, not jaw function. You may notice slightly reduced chewing force for the first 2\u20134 weeks, which is temporary and normal.\"}}, {\"@type\": \"Question\", \"name\": \"How long do results last?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"First treatment typically lasts 4\u20136 months. With repeated sessions, the masseter tends to stay smaller longer \u2014 some patients extend intervals to 8\u201312 months over time.\"}}, {\"@type\": \"Question\", \"name\": \"Can I combine masseter Coretox with other treatments?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. 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We offer WeChat and Line consultation in Chinese and English.\"}}]}<\/script><\/p>\n<style>\n*{box-sizing:border-box;margin:0;padding:0}\nbody{font-family:'PingFang SC','Noto Sans KR',sans-serif;background:#fffcf7;color:#3d2e1e;line-height:1.8}\n.wrap{max-width:677px;margin:0 auto;padding:32px 20px 60px}\n.banner{background:#FFF8EC;text-align:center;padding:36px 20px 28px;margin-bottom:36px;border-bottom:1px solid #e8d5c0}\n.banner-tag{font-size:11px;letter-spacing:3px;color:#8B7355;text-transform:uppercase;margin-bottom:12px}\n.banner h1{font-size:24px;color:#3d2e1e;line-height:1.4;margin-bottom:12px}\n.banner .sub{font-size:13px;color:#6b5240;line-height:1.7}\nh2{font-size:19px;color:#3d2e1e;margin:32px 0 14px;padding-bottom:8px;border-bottom:1px solid #e8d5c0}\nh3{font-size:16px;color:#3d2e1e;margin:22px 0 10px}\np{font-size:15px;color:#555;line-height:1.9;margin-bottom:14px}\n.highlight{background:#fff;border:1px solid #f0e8dc;border-left:3px solid #D4A574;padding:16px 20px;margin:22px 0;border-radius:0 6px 6px 0}\n.highlight p{margin:0;font-size:14px;color:#6b5240}\n.card{background:#F5E6C8;border:1px solid #e8d5c0;border-radius:8px;padding:18px 22px;margin:16px 0}\n.card-title{font-size:13px;font-weight:700;color:#3d2e1e;margin-bottom:6px}\n.card p{font-size:14px;margin:0}\n.faq-item{margin:14px 0;border-bottom:1px solid #f0e8dc;padding-bottom:14px}\n.faq-q{font-weight:700;color:#3d2e1e;font-size:15px;margin-bottom:6px}\n.faq-a{font-size:14px;color:#555;line-height:1.8}\n.cta{background:#F5E6C8;text-align:center;padding:32px 20px;margin-top:40px;border-radius:8px}\n.cta h3{font-size:17px;color:#3d2e1e;margin-bottom:8px}\n.cta p{font-size:13px;color:#6b5240;margin-bottom:4px}\nimg{max-width:100%;height:auto;display:block;margin:20px auto;border-radius:6px}\nul,ol{padding-left:22px;margin-bottom:14px}\nli{font-size:15px;color:#555;line-height:1.9;margin-bottom:4px}\n.schema-block{display:none}\n@media(max-width:600px){.wrap{padding:20px 14px 40px}.banner h1{font-size:20px}}\n<\/style>\n<p><\/head><br \/>\n<body><\/p>\n<div class=\"wrap\">\n<div class=\"banner\">\n<div class=\"banner-tag\">Botox<\/div>\n<h1>Coretox Masseter Reduction Seoul | Rappoel Clinic Jaw Slimming 2026<\/h1>\n<div class=\"sub\">Square jaw and wide face reshaped naturally with Coretox botulinum toxin \u2014 results visible in 6\u20138 weeks<\/div>\n<\/p><\/div>\n<h2>Is Your Wide Face Caused by Muscles, Not Bones?<\/h2>\n<p>Many people assume a wide or square face is a bone structure issue \u2014 but in over 60% of cases, the real culprit is <strong>masseter muscle hypertrophy<\/strong>. Habitual teeth grinding, jaw clenching, and chewing hard foods thicken the masseter over time, creating a wide lower face visible from both the front and side.<\/p>\n<p>The good news: this muscle-type square jaw responds exceptionally well to botulinum toxin injection. <strong>Rappoel Dermatology Clinic<\/strong> in Seoul uses <strong>Coretox<\/strong> \u2014 a premium Korean-manufactured botulinum toxin \u2014 to precisely reduce masseter volume, slimming the lower face naturally within 6\u20138 weeks.<\/p>\n<h2>Why Coretox Instead of Regular Botox?<\/h2>\n<p>Coretox is produced by Korean biotech firm Medytox and is entirely free of animal-derived proteins, making it one of the purest formulations available. Its high purity means lower allergy risk and more predictable diffusion \u2014 especially important for the masseter, where precision matters for facial symmetry. Compared to traditional Botox or Dysport, Coretox offers tighter control over dosage spread in high-volume muscle areas.<\/p>\n<h2>What to Expect: Timeline After Injection<\/h2>\n<ul>\n<li><strong>Week 1\u20132<\/strong>: Mild tightness or slight swelling at injection site (normal)<\/li>\n<li><strong>Week 4<\/strong>: Chewing strength begins to decrease noticeably<\/li>\n<li><strong>Week 6\u20138<\/strong>: Masseter visibly smaller; jawline looks slimmer from front and side<\/li>\n<li><strong>Month 4\u20136<\/strong>: Peak results; repeat treatment recommended to maintain effect<\/li>\n<\/ul>\n<h2>Rappoel Clinic Procedure Overview<\/h2>\n<ul>\n<li>Pre-treatment: Physician palpates masseter thickness and assesses bilateral symmetry<\/li>\n<li>Topical anesthesia applied for 20 minutes before injection<\/li>\n<li>Bilateral injection with dose customized to masseter size<\/li>\n<li>Post-treatment observation: ~30 min, then patient may leave immediately<\/li>\n<\/ul>\n<h2>Post-Treatment Guidelines<\/h2>\n<ul>\n<li>Avoid lying flat or pressing the injection area for 4 hours after treatment<\/li>\n<li>No strenuous exercise, sauna, or hot bath for 48 hours<\/li>\n<li>First-time patients receive conservative dosing; top-up available at 3 months<\/li>\n<li>Patients with bruxism may benefit from combining a night guard for longer-lasting results<\/li>\n<\/ul>\n<h2>Clinic Information<\/h2>\n<ul>\n<li><strong>Address<\/strong>: 5F, 24, Seocho-daero 77-gil, Seocho-gu, Seoul (3 min walk from Gangnam Station Exit 10)<\/li>\n<li><strong>Contact<\/strong>: WeChat rappoelkr \/ Line rappoelkr<\/li>\n<li><strong>Pricing<\/strong>: Quoted individually based on masseter volume and dose required<\/li>\n<\/ul>\n<h2>Frequently Asked Questions<\/h2>\n<div class=\"faq-item\">\n<div class=\"faq-q\">Does masseter Coretox hurt?<\/div>\n<div class=\"faq-a\">Topical numbing cream is applied beforehand. Most patients describe the sensation as a mild dull pressure. Discomfort typically resolves within a few hours.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">Will I be able to chew normally after the injection?<\/div>\n<div class=\"faq-a\">Yes. Masseter Coretox reduces muscle bulk, not jaw function. You may notice slightly reduced chewing force for the first 2\u20134 weeks, which is temporary and normal.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">How long do results last?<\/div>\n<div class=\"faq-a\">First treatment typically lasts 4\u20136 months. With repeated sessions, the masseter tends to stay smaller longer \u2014 some patients extend intervals to 8\u201312 months over time.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">Can I combine masseter Coretox with other treatments?<\/div>\n<div class=\"faq-a\">Absolutely. A popular combination at Rappoel is masseter slimming plus chin filler (The Chaeum), achieving a V-line effect without surgery.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">What’s the right dose for first-timers?<\/div>\n<div class=\"faq-a\">Rappoel physicians customize dosage based on individual masseter thickness. First-time patients typically receive a conservative dose, then adjust at follow-up.<\/div>\n<\/div>\n<div class=\"faq-item\">\n<div class=\"faq-q\">Where in Seoul can I get masseter Botox?<\/div>\n<div class=\"faq-a\">Rappoel Dermatology Clinic is located near Gangnam Station in Seocho-gu. We offer WeChat and Line consultation in Chinese and English.<\/div>\n<\/div>\n<div class=\"cta\">\n<h3>Book Your Masseter Slimming Consultation<\/h3>\n<p>\ud83d\udccd 77, Seocho-daero, Seocho-gu, Seoul, South Korea<\/p>\n<p>\ud83d\udd50 Mon\u2013Fri 10:00\u201319:00 \u00b7 Sat 10:00\u201317:00<\/p>\n<p>\ud83d\udcac WeChat Main: rappoelkr | WeChat Backup: rappoelkr2 | LINE: rappoelkr<\/p>\n<p style=\"margin-top:16px;font-size:13px;color:#8B7355;\">Scan to connect with us<\/p>\n<div style=\"display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:10px;\">\n<div style=\"text-align:center;\">\n <img decoding=\"async\" src=\"https:\/\/rappoel-clinic.com\/wp-content\/uploads\/2026\/04\/Rappoel\u5fae\u4fe1\u4e8c\u7ef4\u7801\uff08\u4e3b\u53f7\uff09-1.png\" alt=\"WeChat Main QR Code\" style=\"width:120px;height:120px;border-radius:6px;\" \/><\/p>\n<p style=\"font-size:11px;color:#6b5240;margin-top:4px;\">WeChat (Main)<\/p>\n<\/p><\/div>\n<div style=\"text-align:center;\">\n <img decoding=\"async\" src=\"https:\/\/rappoel-clinic.com\/wp-content\/uploads\/2026\/04\/Rappoel\u5fae\u4fe1\u4e8c\u7ef4\u7801\uff08\u5907\u7528\u53f7\uff09-1.png\" alt=\"WeChat Backup QR Code\" style=\"width:120px;height:120px;border-radius:6px;\" \/><\/p>\n<p style=\"font-size:11px;color:#6b5240;margin-top:4px;\">WeChat (Backup)<\/p>\n<\/p><\/div>\n<div style=\"text-align:center;\">\n <img decoding=\"async\" src=\"https:\/\/rappoel-clinic.com\/wp-content\/uploads\/2026\/04\/Line\u4e8c\u7ef4\u7801-1.jpg\" alt=\"LINE QR Code\" style=\"width:120px;height:120px;border-radius:6px;\" \/><\/p>\n<p style=\"font-size:11px;color:#6b5240;margin-top:4px;\">LINE<\/p>\n<\/p><\/div>\n<\/p><\/div>\n<\/div>\n<\/div>\n<p><\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Square jaw and wide face reshaped naturally with Coretox botulinum toxin \u2014 results visible in 6\u20138 weeks<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[66],"tags":[],"class_list":["post-1008","post","type-post","status-publish","format-standard","hentry","category-botox-en"],"_links":{"self":[{"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/posts\/1008","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/comments?post=1008"}],"version-history":[{"count":1,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/posts\/1008\/revisions"}],"predecessor-version":[{"id":1010,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/posts\/1008\/revisions\/1010"}],"wp:attachment":[{"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/media?parent=1008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/categories?post=1008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rappoel-clinic.com\/en\/wp-json\/wp\/v2\/tags?post=1008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}