{"id":8924,"date":"2026-07-22T17:34:43","date_gmt":"2026-07-22T08:34:43","guid":{"rendered":"https:\/\/kojihifu.com\/english\/?p=8924"},"modified":"2026-07-24T18:57:06","modified_gmt":"2026-07-24T09:57:06","slug":"jawline-slimming-botox-tokyo-2","status":"publish","type":"post","link":"https:\/\/kojihifu.com\/english\/jawline-slimming-botox-tokyo-2\/","title":{"rendered":"Jawline Slimming Botox Tokyo: Results &#038; Cost Guide"},"content":{"rendered":"<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How long do the results of jawline slimming Botox last?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Results typically last between six and twelve months, depending on the individual's metabolism, the dose used, and whether they engage in habits such as teeth grinding. Most patients who wish to maintain their results return for treatment once or twice a year. With repeated sessions, some patients report that the muscle takes longer to regain its previous bulk.\"}}, {\"@type\": \"Question\", \"name\": \"Is the treatment painful?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The injections involve a brief, mild stinging sensation at each injection point. The masseter is a thick muscle, so the needle must reach an appropriate depth, but the discomfort is generally well tolerated without any anaesthesia. A topical numbing cream can be applied beforehand for those who prefer it.\"}}, {\"@type\": \"Question\", \"name\": \"Will it affect my ability to chew?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"When administered correctly, the dose used for cosmetic masseter reduction should not meaningfully impair chewing function. Some patients notice a very slight reduction in chewing strength in the first few weeks, which is temporary. Proper placement and dosing by an experienced injector are important factors in avoiding functional side effects.\"}}, {\"@type\": \"Question\", \"name\": \"Can jawline Botox help with teeth grinding (bruxism)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Studies suggest that masseter Botox can reduce the intensity of bruxism and associated jaw pain in many patients, making it a treatment with dual aesthetic and functional benefits for those who grind their teeth. However, it is not a cure for bruxism, and patients with significant jaw issues should also consult a dentist for comprehensive management.\"}}, {\"@type\": \"Question\", \"name\": \"Is consultation available in English at your Tokyo clinic?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Kojimachi Dermatology &amp; Plastic Surgery Clinic in Ichigaya, Tokyo offers consultations in English. English-speaking staff are available to assist international patients throughout the process, from initial enquiry to post-treatment follow-up.\"}}]}<\/script><\/p>\n<h2>Jawline Slimming Botox in Tokyo: What to Expect, How It Works, and Where to Get It<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Jawline slimming Botox Tokyo \u2014 Jawline Slimming Botox in Tokyo: What to Expect, How It Work\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_7446679_1784545388.webp\" alt=\"Jawline slimming Botox Tokyo \u2014 Jawline Slimming Botox in Tokyo: What to Expect, How It Work\" \/><br \/>\n<\/figure>\n<p>Many people feel self-conscious about a wide or square-looking lower face, often caused by overdeveloped masseter muscles rather than bone structure alone. If you have been researching jawline slimming Botox in Tokyo, you are in the right place. This guide explains how the treatment works, what realistic results look like, how much it costs, and who makes a good candidate.<\/p>\n<p><strong>What you&#8217;ll learn in this article:<\/strong><\/p>\n<ul>\n<li>How Botox injections slim the jawline by relaxing the masseter muscle<\/li>\n<li>What results to expect and how long they last<\/li>\n<li>Honest pricing information for Tokyo clinics<\/li>\n<li>Who is \u2014 and is not \u2014 a suitable candidate<\/li>\n<li>Common misconceptions that lead patients to make uninformed decisions<\/li>\n<\/ul>\n<div class=\"kjmc-en-booking-inline\" style=\"background: #f7fbf7; border: 1px solid #d5e6d8; border-radius: 10px; padding: 16px 20px; margin: 26px 0; text-align: center;\">\n<p style=\"margin: 0 0 12px; color: #1a3a1f; font-size: 0.95em; line-height: 1.65;\"><strong>Have a question about this treatment?<\/strong><br \/>\nMessage us on LINE or WhatsApp \u2014 our English-speaking team usually replies the same day.<\/p>\n<p style=\"margin: 0; line-height: 1;\"><a style=\"display: inline-flex; align-items: center; gap: 8px; background: #06C755; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/line.me\/R\/ti\/p\/@710uitns?ts=05311801&amp;oat_content=url#~\" target=\"_blank\" rel=\"noopener noreferrer\">Book via LINE<\/a><br \/>\n<a style=\"display: inline-flex; align-items: center; gap: 8px; background: #25D366; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/whatsapp.com\/channel\/0029VbCA1v85K3zY4MLX2a1h\" target=\"_blank\" rel=\"noopener noreferrer\">Message on WhatsApp<\/a><\/p>\n<\/div>\n<h2>What Is Jawline Slimming Botox?<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Jawline slimming Botox Tokyo \u2014 What Is Jawline Slimming Botox\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_4586708_1784545389.webp\" alt=\"Jawline slimming Botox Tokyo \u2014 What Is Jawline Slimming Botox\" \/><br \/>\n<\/figure>\n<p>Jawline slimming Botox \u2014 sometimes called masseter Botox or jaw reduction injections \u2014 involves placing small amounts of botulinum toxin type A into the masseter muscle, the large chewing muscle located at the angle of the jaw. By temporarily reducing the muscle&#8217;s activity, the treatment can soften a square or wide jawline and create a more tapered, oval facial contour.<\/p>\n<p>The procedure is non-surgical, requires no incisions, and typically takes fewer than 30 minutes in a clinic setting. It is distinct from filler-based jawline contouring, which adds volume rather than reducing it.<\/p>\n<h3>Why Is the Masseter Muscle the Target?<\/h3>\n<p>The masseter is one of the strongest muscles in the human body. In some individuals \u2014 due to genetics, habitual teeth grinding (bruxism), or excessive chewing \u2014 it becomes hypertrophied, meaning it enlarges beyond what is needed for normal function. This enlargement contributes directly to a wider lower face.<\/p>\n<p>Botulinum toxin injections do not destroy the muscle; they temporarily reduce the nerve signals that cause it to contract forcefully, allowing it to gradually reduce in size over several weeks.<\/p>\n<h2>How Jawline Slimming Botox Works: The Science<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Jawline slimming Botox Tokyo \u2014 How Jawline Slimming Botox Works: The Science\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_7581583_1784545390.webp\" alt=\"Jawline slimming Botox Tokyo \u2014 How Jawline Slimming Botox Works: The Science\" \/><br \/>\n<\/figure>\n<p>Botulinum toxin type A (the active ingredient in products such as Allergan&#8217;s Botox) works by blocking the release of acetylcholine at the neuromuscular junction. In plain terms, it interrupts the chemical message that tells the muscle to contract. When a large muscle like the masseter is prevented from working at full capacity, it gradually undergoes a process called disuse atrophy \u2014 it shrinks in volume over time.<\/p>\n<p>Clinical reports indicate that measurable reductions in masseter thickness can typically be observed within four to eight weeks of injection, with maximum effect often seen at approximately three months.<\/p>\n<p>Studies suggest that repeated treatments can extend the duration of results and, in some cases, produce a degree of long-term muscle reduction. A 2014 study published in <em>Dermatologic Surgery<\/em> found that patients who received three or more sessions showed <strong>progressively greater volume reducti<\/strong>on compared with those who had a single treatment session.<\/p>\n<h3>How Many Units Are Needed?<\/h3>\n<p>The masseter is a large, powerful muscle and typically requires more units of botulinum toxin than a standard cosmetic injection site such as the forehead. Treatment in the masseter area commonly ranges from 20 to 40 units per side, though the precise amount is determined during a clinical assessment and varies by the individual&#8217;s muscle mass, facial anatomy, and treatment goals.<\/p>\n<blockquote style=\"border-left: 4px solid #5a8a5a; padding: .75em 1.1em; margin: 1.8em 0; background: #f7fbf7; border-radius: 0 6px 6px 0; font-size: .93em;\">\n<p style=\"margin: 0 0 .45em; font-weight: bold; color: #3a6e3a;\">Dr. Karibe&#8217;s Note<\/p>\n<p style=\"margin: 0; color: #333; line-height: 1.7;\">Many of our international patients are surprised to find that jawline slimming Botox requires a thorough assessment of the entire lower face before any injections are planned. At<strong> BIOTOPE CLINIC or Kojimachi Dermatology &amp; Plastic Surgery Clinic,<\/strong> we evaluate not only the masseter but also the overall facial proportions, bone structure, and skin laxity. For patients whose concern stems primarily from fat rather than muscle, a different approach \u2014 such as fat-dissolving injection \u2014 may be more appropriate. A proper consultation avoids the disappointment of pursuing a treatment that does not address the underlying cause.<\/p>\n<\/blockquote>\n<h2>Expected Results: What Jawline Slimming Botox Can and Cannot Do<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Jawline slimming Botox Tokyo \u2014 Expected Results: What Jawline Slimming Botox Can and Cannot\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_7446681_1784545390.webp\" alt=\"Jawline slimming Botox Tokyo \u2014 Expected Results: What Jawline Slimming Botox Can and Cannot\" \/><br \/>\n<\/figure>\n<p>Most patients begin to notice a softening of the jawline within four to six weeks. The full result is generally visible at around the three-month mark. The effect is not permanent; for the majority of patients, the muscle gradually returns to its previous level of activity over six to twelve months, meaning maintenance treatments are usually required to sustain results.<\/p>\n<p>It is important to have realistic expectations. Jawline slimming Botox works best when the width of the lower face is primarily due to masseter hypertrophy. If the jaw width is largely determined by bone structure, the achievable reduction will be more limited.<\/p>\n<p>Similarly, if excess submental fat or skin laxity is contributing to the appearance of a heavy jawline, Botox injections alone may not fully address the concern.<\/p>\n<h3>Common Misconceptions About Jawline Botox<\/h3>\n<p><strong>Misconception 1: Results are immediate.<\/strong> This is one of the most frequently encountered misunderstandings. Unlike filler, which creates an instant volume change, masseter Botox works through a gradual biological process. Patients who expect to see a slimmer jaw the day after treatment are likely to be disappointed. The improvement unfolds progressively over several weeks.<\/p>\n<p><strong>Misconception 2: One treatment is permanent.<\/strong> Botulinum toxin is a temporary neuromodulator. Even with repeated treatments, the masseter muscle will eventually recover its bulk if injections are discontinued entirely. Patients who maintain regular sessions \u2014 typically once or twice a year \u2014 generally see the most consistent long-term results.<\/p>\n<h2>Cost of Jawline Slimming Botox in Tokyo<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Jawline slimming Botox Tokyo \u2014 Cost of Jawline Slimming Botox in Tokyo\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_15688019_1784545391.webp\" alt=\"Jawline slimming Botox Tokyo \u2014 Cost of Jawline Slimming Botox in Tokyo\" \/><br \/>\n<\/figure>\n<p>Pricing in Tokyo varies depending on the brand of botulinum toxin used, the number of units required, and the clinic&#8217;s overall structure. At <strong>BIOTOPE CLINIC or \u00a0Kojimachi Dermatology &amp; Plastic Surgery Clinic,<\/strong> Botox injections are priced as follows:<\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin: 20px 0; font-size: 0.95em; border: 1px solid #ccc;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #ccc; padding: 10px 12px; background: #f1faf3; text-align: left; font-weight: bold;\">Product<\/th>\n<th style=\"border: 1px solid #ccc; padding: 10px 12px; background: #f1faf3; text-align: left; font-weight: bold;\">Price Range<\/th>\n<th style=\"border: 1px solid #ccc; padding: 10px 12px; background: #f1faf3; text-align: left; font-weight: bold;\">Notes<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Botox (Allergan)<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">\u00a522,000 \u2013 \u00a5148,000<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">FDA-approved brand; widely considered an industry-standard formulation<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Botox (Korean brand)<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">\u00a59,900 \u2013 \u00a545,000<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Licensed alternatives; discussed with patients during consultation<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Micro-Botox<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">\u00a522,000 \u2013 \u00a533,000<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Intradermal technique; used for skin texture, not typically for masseter slimming<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Initial consultation<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">\u00a53,300<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Required before any injectable treatment<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The masseter area typically falls in the mid-to-upper range of the pricing scale due to the volume of product required. The total cost for bilateral (both sides) masseter treatment with Allergan Botox at this clinic generally falls within the \u00a544,000 \u2013 \u00a588,000 range, though individual variation applies. For an accurate quote, we recommend booking a consultation.<\/p>\n<p>Patients who are also concerned about submental fat or mild skin laxity along the jawline may wish to ask about complementary options such as fat-dissolving injection or HIFU (high-intensity focused ultrasound for skin tightening), both of which are available at the Ichigaya clinic. Feel free to ask about these during a consultation.<\/p>\n<div class=\"kjmc-en-booking-inline\" style=\"background: #f7fbf7; border: 1px solid #d5e6d8; border-radius: 10px; padding: 16px 20px; margin: 26px 0; text-align: center;\">\n<p style=\"margin: 0 0 12px; color: #1a3a1f; font-size: 0.95em; line-height: 1.65;\"><strong>Have a question about this treatment?<\/strong><br \/>\nMessage us on LINE or WhatsApp \u2014 our English-speaking team usually replies the same day.<\/p>\n<p style=\"margin: 0; line-height: 1;\"><a style=\"display: inline-flex; align-items: center; gap: 8px; background: #06C755; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/line.me\/R\/ti\/p\/@710uitns?ts=05311801&amp;oat_content=url#~\" target=\"_blank\" rel=\"noopener noreferrer\">Book via LINE<\/a><br \/>\n<a style=\"display: inline-flex; align-items: center; gap: 8px; background: #25D366; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/whatsapp.com\/channel\/0029VbCA1v85K3zY4MLX2a1h\" target=\"_blank\" rel=\"noopener noreferrer\">Message on WhatsApp<\/a><\/p>\n<\/div>\n<h2>What to Expect: Before, During, and After Treatment<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Jawline slimming Botox Tokyo \u2014 What to Expect: Before, During, and After Treatment\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_15688021_1784545392.webp\" alt=\"Jawline slimming Botox Tokyo \u2014 What to Expect: Before, During, and After Treatment\" \/><br \/>\n<\/figure>\n<h3>Before the Appointment<\/h3>\n<p>A clinical consultation is required before treatment. During this session, <strong>Dr. Karibe<\/strong> or a doctor of the clinical team will assess the masseter muscle, review the patient&#8217;s medical history, and discuss treatment goals. Patients are generally advised to avoid blood-thinning medications and supplements (such as aspirin, ibuprofen, fish oil, or vitamin E) for approximately one week beforehand, as these can increase the likelihood of bruising. Alcohol is best avoided for 24 hours prior to injection.<\/p>\n<h3>During the Procedure<\/h3>\n<p>The injection session itself takes approximately 15 to 30 minutes. A fine needle is used to deliver the botulinum toxin at multiple points within the masseter muscle on each side. Most patients describe the sensation as a brief, mild sting. No general anaesthesia is required; a topical numbing cream may be applied if the patient prefers.<\/p>\n<h3>After the Procedure and Recovery<\/h3>\n<p>There is no significant downtime. Patients can typically return to their regular activities on the same day. Some mild swelling, redness, or bruising at the injection sites may occur and usually resolves within a few days. Patients are advised to avoid vigorous exercise, saunas, and alcohol for 24 hours after treatment, and to refrain from massaging the treated area for several days to prevent unintended spread of the product.<\/p>\n<p>At our clinic in Ichigaya, Tokyo, we frequently see patients who return for a follow-up review at four to six weeks post-treatment. This allows the clinical team to assess the response and determine whether any minor touch-up is warranted.<\/p>\n<h2>Who Is a Good Candidate for Jawline Slimming Botox?<\/h2>\n<p>The treatment tends to produce the most noticeable improvement in adults who have palpably enlarged masseter muscles \u2014 a condition often confirmed by asking the patient to clench their teeth, which makes the muscle visibly prominent. Good candidates typically include those with naturally wide lower faces due to masseter hypertrophy, individuals who grind their teeth (bruxism), and those seeking a non-surgical approach to facial slimming.<\/p>\n<p>The procedure is suitable for both men and women, though the degree of muscle bulk and the aesthetic goals may differ. A thorough consultation helps to identify whether the jaw width is muscular, bony, or fat-related \u2014 and this distinction is essential for selecting the right treatment.<\/p>\n<h3>Who Should Avoid This Treatment?<\/h3>\n<p>Jawline slimming Botox is not suitable for everyone. The following groups are generally advised to avoid it or to seek specialist medical guidance first:<\/p>\n<ul>\n<li>Pregnant or breastfeeding individuals<\/li>\n<li>Those with a known allergy to botulinum toxin or any of its excipients<\/li>\n<li>Patients with neuromuscular conditions such as myasthenia gravis or Lambert-Eaton syndrome<\/li>\n<li>Individuals currently taking certain antibiotics (particularly aminoglycosides) or other medications that may interact with botulinum toxin<\/li>\n<li>Those whose jaw width is primarily due to bone structure rather than muscle hypertrophy \u2014 in such cases, results may be limited and surgical options may be worth discussing<\/li>\n<\/ul>\n<h2>Frequently Asked Questions<\/h2>\n<dl class=\"kj-faq\">\n<dt>Q. How long do the results of jawline slimming Botox last?<\/dt>\n<dd>Results typically last between six and twelve months, depending on the individual&#8217;s metabolism, the dose used, and whether they engage in habits such as teeth grinding. Most patients who wish to maintain their results return for treatment once or twice a year. With repeated sessions, some patients report that the muscle takes longer to regain its previous bulk.<\/dd>\n<dd><\/dd>\n<dt>Q. Is the treatment painful?<\/dt>\n<dd>The injections involve a brief, mild stinging sensation at each injection point. The masseter is a thick muscle, so the needle must reach an appropriate depth, but the discomfort is generally well tolerated without any anaesthesia. A topical numbing cream can be applied beforehand for those who prefer it.<\/dd>\n<dd><\/dd>\n<dt>Q. Will it affect my ability to chew?<\/dt>\n<dd>When administered correctly, the dose used for cosmetic masseter reduction should not meaningfully impair chewing function. Some patients notice a very slight reduction in chewing strength in the first few weeks, which is temporary. Proper placement and dosing by an experienced injector are important factors in avoiding functional side effects.<\/dd>\n<dd><\/dd>\n<dt>Q. Can jawline Botox help with teeth grinding (bruxism)?<\/dt>\n<dd>Studies suggest that masseter Botox can reduce the intensity of bruxism and associated jaw pain in many patients, making it a treatment with dual aesthetic and functional benefits for those who grind their teeth. However, it is not a cure for bruxism, and patients with significant jaw issues should also consult a dentist for comprehensive management.<\/dd>\n<dd><\/dd>\n<dt>Q. Is consultation available in English at your Tokyo clinic?<\/dt>\n<dd>Yes. Kojimachi Dermatology &amp; Plastic Surgery Clinic in Ichigaya, Tokyo offers consultations in English. English-speaking staff are available to assist international patients throughout the process, from initial enquiry to post-treatment follow-up.<\/dd>\n<\/dl>\n<div class=\"kjmc-en-booking-inline\" style=\"background: #f7fbf7; border: 1px solid #d5e6d8; border-radius: 10px; padding: 16px 20px; margin: 26px 0; text-align: center;\">\n<p style=\"margin: 0 0 12px; color: #1a3a1f; font-size: 0.95em; line-height: 1.65;\"><strong>Have a question about this treatment?<\/strong><br \/>\nMessage us on LINE or WhatsApp \u2014 our English-speaking team usually replies the same day.<\/p>\n<p style=\"margin: 0; line-height: 1;\"><a style=\"display: inline-flex; align-items: center; gap: 8px; background: #06C755; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/line.me\/R\/ti\/p\/@710uitns?ts=05311801&amp;oat_content=url#~\" target=\"_blank\" rel=\"noopener noreferrer\">Book via LINE<\/a><br \/>\n<a style=\"display: inline-flex; align-items: center; gap: 8px; background: #25D366; color: #fff; padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 0.92em; margin: 4px 6px; white-space: nowrap; vertical-align: middle;\" href=\"https:\/\/whatsapp.com\/channel\/0029VbCA1v85K3zY4MLX2a1h\" target=\"_blank\" rel=\"noopener noreferrer\">Message on WhatsApp<\/a><\/p>\n<\/div>\n<h2>Summary<\/h2>\n<p>Jawline slimming Botox is a well-established, non-surgical treatment for individuals whose wide or square lower face is caused by an enlarged masseter muscle. The procedure involves targeted botulinum toxin injections that gradually reduce muscle bulk over several weeks, with results typically lasting six to twelve months. It is most effective when the cause of jaw width is muscular rather than skeletal or fat-related, and a thorough clinical assessment is essential before proceeding.<\/p>\n<p>Pricing at <strong>BIOTOPE CLINIC or Kojimachi Dermatology &amp; Plastic Surgery Clinic<\/strong> ranges from approximately \u00a59,900 to \u00a5148,000 depending on the product and volume used, with bilateral masseter treatment most commonly falling in the mid-range. The procedure requires no downtime and carries a well-characterised safety profile when performed by a qualified practitioner.<\/p>\n<p>If you have questions about jawline slimming Botox, our team at <strong>BIOTOPE CLINIC or Kojimachi Dermatology &amp; Plastic Surgery Clinic<\/strong> in Tokyo would be happy to help. We offer consultations in English.<\/p>\n<div class=\"kjmc-en-booking-box\" style=\"background: linear-gradient(135deg,#f1faf3 0%,#e6f3ea 100%); border-radius: 14px; padding: 32px 24px; margin: 36px 0 24px; border: 1px solid #c5dccd; text-align: center;\">\n<h3 style=\"margin: 0 0 8px; color: #3a6e3a; border: none; padding: 0; font-size: 1.3em;\">24\/7 Consultation &amp; Booking<\/h3>\n<div style=\"width: 48px; height: 2px; background: #3a6e3a; margin: 0 auto 22px;\"><\/div>\n<p style=\"margin: 0 0 12px; color: #1a3a1f; font-size: 1.1em; font-weight: bold;\">Book a Consultation or Treatment<\/p>\n<p style=\"margin: 0 0 24px; color: #2c4a35; line-height: 1.75;\">Our English-speaking team responds via LINE or WhatsApp \u2014 usually the same day.<\/p>\n<p style=\"margin: 0 0 10px; line-height: 1;\"><a style=\"display: inline-flex; align-items: center; justify-content: center; gap: 10px; background: #06C755; color: #fff; padding: 14px 32px; border-radius: 10px; text-decoration: none; font-weight: bold; font-size: 1.02em; box-shadow: 0 2px 8px rgba(6,199,85,0.25); min-width: 240px; white-space: nowrap;\" href=\"https:\/\/line.me\/R\/ti\/p\/@710uitns?ts=05311801&amp;oat_content=url#~\" target=\"_blank\" rel=\"noopener noreferrer\">Book via LINE<\/a><\/p>\n<p style=\"margin: 0; line-height: 1;\"><a style=\"display: inline-flex; align-items: center; justify-content: center; gap: 10px; background: #25D366; color: #fff; padding: 14px 32px; border-radius: 10px; text-decoration: none; font-weight: bold; font-size: 1.02em; box-shadow: 0 2px 8px rgba(37,211,102,0.25); min-width: 240px; white-space: nowrap;\" href=\"https:\/\/whatsapp.com\/channel\/0029VbCA1v85K3zY4MLX2a1h\" target=\"_blank\" rel=\"noopener noreferrer\">Message on WhatsApp<\/a><\/p>\n<\/div>\n<h2>References<\/h2>\n<ol>\n<li>Kim NH, Chung JH, Park RH, Park JB. The use of botulinum toxin type A in aesthetic mandibular contouring. Plastic and Reconstructive Surgery. 2005;115(3):919\u2013930.<\/li>\n<li>Wu WT. Botox facial slimming\/facial sculpting: the role of botulinum toxin-A in the treatment of hypertrophic masseteric muscle and parotid enlargement to narrow the lower facial width. Facial Plastic Surgery Clinics of North America. 2010;18(1):133\u2013140.<\/li>\n<li>Xie Y, Zhou J, Li H, Cheng C, Herrler T, Li Q. Classification of masseter hypertrophy for tailored botulinum toxin type A treatment. Plastic and Reconstructive Surgery. 2014;134(2):209e\u2013218e.<\/li>\n<li>Shome D, Vadera S, Male SR, Kapoor R. Use of botulinum toxin-A for the treatment of masseter hypertrophy for slimming of the lower face. Plastic and Reconstructive Surgery \u2014 Global Open. 2019;7(12):e2578.<\/li>\n<li>To EW, Ahuja AT, Ho WS, et al. A prospective study of the effect of botulinum toxin A on masseteric muscle hypertrophy with ultrasonographic and electromyographic measurement. British Journal of Plastic Surgery. 2001;54(3):197\u2013200.<\/li>\n<\/ol>\n<h2>Related Articles<\/h2>\n<p>You may also find these articles useful.<\/p>\n<ul>\n<li><a href=\"https:\/\/kojihifu.com\/english\/jawline-slimming-botox-tokyo\/\" target=\"_blank\" rel=\"noopener\">Jawline Slimming Botox Tokyo: Cost, Results &amp; Clinic Guide<\/a><\/li>\n<li><a href=\"https:\/\/kojihifu.com\/english\/jawline-slimming-botox-tokyo-guide\/\" target=\"_blank\" rel=\"noopener\">Jawline Slimming Botox Tokyo: Cost, Results &amp; What to Expect<\/a><\/li>\n<li><a href=\"https:\/\/kojihifu.com\/english\/masseter-botox-tokyo-cost-effects\/\" target=\"_blank\" rel=\"noopener\">Masseter Botox Tokyo: Cost, Effects, and What to Expect<\/a><\/li>\n<\/ul>\n<div style=\"margin: 2.5em 0 1em; padding: 1.5em; border: 1px solid #d5d5d5; border-radius: 10px; background: #fafafa; font-size: .9em;\">\n<p style=\"font-size: .72em; font-weight: bold; color: #888; margin: 0 0 1.2em; letter-spacing: .08em;\">SUPERVISED BY<\/p>\n<div style=\"display: flex; align-items: flex-start; gap: 1.2em; flex-wrap: wrap;\">\n<div style=\"flex-shrink: 0; text-align: center; min-width: 110px;\"><img decoding=\"async\" style=\"width: 100px; height: 100px; border-radius: 50%; object-fit: cover; object-position: top center; display: block; margin: 0 auto; border: 3px solid #e0e0e0;\" src=\"https:\/\/kojihifu.com\/hon\/wp-content\/uploads\/2022\/01\/photo-karibejun-400-3_re-300x300.jpg\" alt=\"Dr. Jun Karibe MD \u2014 Board-certified Plastic Surgeon, Director of Kojimachi Dermatology &amp; Plastic Surgery Clinic\" \/><\/p>\n<p style=\"margin: .6em 0 .1em; font-weight: bold; font-size: .95em; color: #222;\">Dr. Jun Karibe<\/p>\n<p style=\"margin: 0 0 .1em; font-size: .75em; color: #999;\">MD<\/p>\n<p style=\"margin: 0; font-size: .75em; color: #555; font-weight: bold;\">Director<\/p>\n<\/div>\n<div style=\"flex: 1; min-width: 200px;\">\n<div style=\"margin-bottom: .75em; background: #fff; border: 1px solid #ebebeb; border-radius: 6px; padding: .7em 1em;\">\n<p style=\"margin: 0 0 .35em; font-size: .78em; font-weight: bold; color: #666; border-bottom: 1px solid #f2f2f2; padding-bottom: .3em;\">Education &amp; Career<\/p>\n<div style=\"font-size: .82em; color: #444; line-height: 1.75;\">\n<div>Juntendo University School of Medicine<\/div>\n<div>Department of Plastic Surgery, University of Tokyo Hospital<\/div>\n<div>Assistant Professor, Plastic &amp; Cosmetic Surgery, Saitama Medical University<\/div>\n<div>Assistant Professor &amp; Chief Resident, Yamanashi University Hospital<\/div>\n<div>2019: Founded Kojimachi Dermatology &amp; Plastic Surgery Clinic (Ichigaya, Tokyo)<\/div>\n<div>2021: Founded BIOTOPE CLINIC Shirokanedai (Minato-ku, Tokyo)<\/div>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: .75em; background: #fff; border: 1px solid #ebebeb; border-radius: 6px; padding: .7em 1em;\">\n<p style=\"margin: 0 0 .35em; font-size: .78em; font-weight: bold; color: #666; border-bottom: 1px solid #f2f2f2; padding-bottom: .3em;\">Certifications<\/p>\n<div style=\"font-size: .82em; color: #444; line-height: 1.75;\">\n<div>Board-certified Plastic Surgeon \u2014 Japan Society of Plastic and Reconstructive Surgery<\/div>\n<div>Specialist \u2014 Japan Society of Anti-Aging Medicine<\/div>\n<div>Certified Industrial Physician \u2014 Japan Medical Association<\/div>\n<div>Allergan VST-certified Injector (Botox &amp; Hyaluronic Acid)<\/div>\n<\/div>\n<\/div>\n<div style=\"background: #fff; border: 1px solid #ebebeb; border-radius: 6px; padding: .7em 1em;\">\n<p style=\"margin: 0 0 .35em; font-size: .78em; font-weight: bold; color: #666; border-bottom: 1px solid #f2f2f2; padding-bottom: .3em;\">Awards<\/p>\n<div style=\"font-size: .82em; color: #444; line-height: 1.75;\">\n<div>Best Presentation Award \u2014 Dept. of Plastic Surgery, University of Tokyo (2016)<\/div>\n<div>Excellence Award \u2014 Japan Society of Plastic and Reconstructive Surgery (2018)<\/div>\n<div>Featured Presentation \u2014 ASPS Annual Scientific Meeting, USA (2018)<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"margin-top: 1em; padding-top: .75em; border-top: 1px solid #e8e8e8; display: flex; flex-wrap: wrap; align-items: center; gap: .5em;\"><a style=\"display: inline-block; background: #e1306c; color: #fff; padding: .4em .9em; border-radius: 4px; text-decoration: none; font-size: .8em; font-weight: bold;\" href=\"https:\/\/www.instagram.com\/dr.jun_\/\" target=\"_blank\" rel=\"noopener noreferrer\">Instagram<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"Jawline slimming Botox in Tokyo reduces masseter muscle bulk for a refined lower face. Learn how it works, realistic results, pricing, and find English-speaking clinics.","protected":false},"author":4,"featured_media":8923,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,21],"tags":[443,444,433,25,26,60,43],"class_list":["post-8924","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cosmetic-treatments","category-skin-dermatology","tag-masseter-reduction","tag-face-contouring","tag-aesthetic-medicine","tag-jawline-slimming","tag-tokyo-clinic","tag-botox","tag-non-surgical"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts\/8924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/comments?post=8924"}],"version-history":[{"count":2,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts\/8924\/revisions"}],"predecessor-version":[{"id":9390,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts\/8924\/revisions\/9390"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/media\/8923"}],"wp:attachment":[{"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/media?parent=8924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/categories?post=8924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/tags?post=8924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}