{"id":9586,"date":"2026-07-27T17:14:30","date_gmt":"2026-07-27T08:14:30","guid":{"rendered":"https:\/\/kojihifu.com\/english\/?p=9586"},"modified":"2026-07-27T17:14:31","modified_gmt":"2026-07-27T08:14:31","slug":"masseter-botox-tokyo-cost-effects-2","status":"publish","type":"post","link":"https:\/\/kojihifu.com\/english\/masseter-botox-tokyo-cost-effects-2\/","title":{"rendered":"Masseter Botox Tokyo: Cost, Effects &#038; Results"},"content":{"rendered":"<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Will masseter Botox affect my ability to chew normally?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"For the vast majority of patients, chewing function is not meaningfully affected. The masseter is one of several muscles involved in mastication, and the dose used for cosmetic purposes reduces bulk without eliminating muscle function. Some patients notice a very mild change in chewing strength in the first two to three weeks, which resolves as the body adapts.\"}}, {\"@type\": \"Question\", \"name\": \"How many sessions will I need to see a noticeable difference?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Many patients see satisfying results after a single session, though patients with pronounced hypertrophy may benefit from a second treatment three to four months later to consolidate and deepen the effect. Clinical reports indicate that repeated sessions can extend the duration of results over time, as the muscle gradually adapts to reduced activity.\"}}, {\"@type\": \"Question\", \"name\": \"Is masseter Botox permanent?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. The effects are temporary by nature. Results from a single session last approximately four to six months. Some patients who undergo regular treatments over one to two years do report that their masseter appears permanently smaller even when treatments are paused, possibly due to long-term atrophy \u2014 but this varies significantly between individuals and cannot be guaranteed.\"}}, {\"@type\": \"Question\", \"name\": \"Can I combine masseter Botox with other treatments?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, in many cases. Masseter Botox is commonly combined with hyaluronic acid fillers (for chin projection or cheek definition), HIFU (for skin tightening along the lower face), or thread lifts to achieve a more comprehensive facial-contouring result. Dr. Karibe can advise on which combinations are appropriate based on individual anatomy during the consultation.\"}}, {\"@type\": \"Question\", \"name\": \"Is the procedure safe for all skin types and ethnicities?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Botulinum toxin injections do not carry the same pigmentation risk as certain laser treatments, making them generally suitable across all skin types and ethnicities. The assessment of masseter hypertrophy, however, should be performed by a practitioner experienced with diverse facial anatomies, as ideal outcomes and unit dosing may differ between individuals.\"}}]}<\/script><\/p>\n<h2>Masseter Botox in Tokyo: Cost, Effects, and What to Expect<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 Masseter Botox in Tokyo: Cost, Effects, and What to Expect\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_7446679_1785108068.webp\" alt=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 Masseter Botox in Tokyo: Cost, Effects, and What to Expect\" \/><\/figure>\n<p>If you have noticed a wide or square-looking jawline and wondered whether there is a non-surgical way to soften it, you are far from alone. <strong>Masseter Botox<\/strong> \u2014 botulinum toxin injected into the chewing muscles \u2014 has become one of the most requested facial-contouring procedures among international patients visiting Tokyo.<\/p>\n<p>]This article explains how the treatment works, what realistic results look like, what it costs in Tokyo, and who is \u2014 and is not \u2014 a suitable candidate.<\/p>\n<p><strong>What you&#8217;ll learn in this article:<\/strong><\/p>\n<ul>\n<li>What masseter Botox is and how it slims the jawline<\/li>\n<li>How long results last and what clinical evidence suggests<\/li>\n<li>Realistic cost range in Tokyo, including at <strong>BIOTOPE CLINIC<\/strong><\/li>\n<li>What to expect before, during, and after the procedure<\/li>\n<li>Who is a good candidate \u2014 and who should think carefully before proceeding<\/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 Masseter Botox?<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 What Is Masseter Botox\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_4586708_1785108068.webp\" alt=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 What Is Masseter Botox\" \/><\/figure>\n<p>The masseter is a <strong>large, powerful muscle<\/strong> located at the angle of the jaw on each side of the face. Its primary function is chewing, but in some individuals \u2014 due to genetics, habitual <strong>teeth grinding<\/strong> (bruxism), or jaw clenching \u2014 it becomes significantly enlarged, giving the lower face a<strong> broad, rectangular appearance<\/strong>.<\/p>\n<p>Masseter Botox, sometimes called &#8220;<strong>jaw slimming<\/strong>&#8221; or &#8220;face slimming&#8221; injections, involves placing small amounts of botulinum toxin type A directly into the masseter muscle.<\/p>\n<p>The toxin temporarily reduces the nerve signals that cause the muscle to contract, which leads the muscle to gradually decrease in bulk over several weeks. The result is a softer, more tapered jawline \u2014 without any incisions, anaesthesia, or recovery time.<\/p>\n<p>This is a treatment available at BIOTOPE CLINIC in Shirokanedai \u2014 feel free to ask about it during a consultation with Dr. Karibe.<\/p>\n<h2>How Masseter Botox Works<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 How Masseter Botox Works\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_7446681_1785108069.webp\" alt=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 How Masseter Botox Works\" \/><\/figure>\n<h3>The injection process<\/h3>\n<p>During the appointment, the practitioner identifies the masseter by asking the patient to clench their teeth, which makes the muscle visibly prominent.<\/p>\n<p>A series of small injections are placed into the body of the muscle on each side, typically taking five to ten minutes in total. Because the needle gauge used is very fine and the masseter is a deep, robust muscle, most patients describe the sensation as a mild, brief sting rather than significant pain.<\/p>\n<h3>How the muscle responds<\/h3>\n<p><strong>Botulinum toxin<\/strong> works by blocking acetylcholine release at the neuromuscular junction \u2014 in plain terms, it prevents the nerve from telling the muscle to contract at full force. With reduced workload over weeks and months, muscle fibres gradually atrophy (shrink).<\/p>\n<p>The muscle does not disappear; it simply returns to a less hypertrophied state. Clinical reports indicate that meaningful volume reduction is typically visible within four to eight weeks, with peak effect around three months after treatment.<\/p>\n<h3>Which Botox products are used<\/h3>\n<p>At <strong>BIOTOPE CLINIC<\/strong>, both Allergan Botox (the globally established brand) and reputable Korean-brand botulinum toxin products are available. The choice of product can influence both dosing precision and cost, and Dr. Karibe will discuss which is appropriate during the consultation.<\/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 <strong>masseter Botox<\/strong> requires a higher dose than most other facial injection sites. The masseter is among the largest and most active muscles in the face, so underdosing is a common reason results are disappointing elsewhere.<\/p>\n<p style=\"margin: 0; color: #333; line-height: 1.7;\">A thorough assessment of muscle bulk \u2014 done by palpation and, where needed, photographic analysis \u2014 is essential before deciding on the appropriate unit count for each individual.<\/p>\n<\/blockquote>\n<h2>Expected Results and How Long They Last<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 Expected Results and How Long They Last\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_7581583_1785108070.webp\" alt=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 Expected Results and How Long They Last\" \/><\/figure>\n<h3>What you can realistically expect<\/h3>\n<p>Most patients notice the jawline beginning to soften within four to six weeks.<\/p>\n<p>Full slimming typically becomes apparent at the two- to three-month mark, when muscle atrophy is most pronounced. Studies suggest that the reduction in masseter thickness can reach<strong> 20\u201330%<\/strong> after a single treatment cycle, with some studies reporting up to 31% reduction in masseter cross-sectional area measured by ultrasound after repeated sessions.<\/p>\n<p>Beyond aesthetics, many patients with bruxism report a secondary benefit: reduced jaw tension, fewer morning headaches, and less tooth wear \u2014 though these effects are not guaranteed for every individual.<\/p>\n<h3>How long do results last?<\/h3>\n<p>Results from a single session typically last four to six months, after which nerve function and muscle activity gradually return. With repeated treatments, studies suggest that the interval between sessions may lengthen \u2014 some patients maintain satisfactory results with one to two treatments per year after an initial series.<\/p>\n<p>Individual variation in metabolism, muscle activity, and lifestyle factors means timelines differ from person to person.<\/p>\n<h2>Common Misconceptions About Masseter Botox<\/h2>\n<h3>Misconception 1: &#8220;Results appear immediately after the injection&#8221;<\/h3>\n<p>This is one of the most frequent misunderstandings. Unlike hyaluronic acid fillers, which add volume instantly, masseter Botox works by a gradual biological process \u2014 muscle atrophy takes weeks. Patients who expect to leave the clinic with a visibly narrower jaw on the same day are likely to be disappointed. The change is subtle at first and becomes clearly visible over six to eight weeks.<\/p>\n<h3>Misconception 2: &#8220;Masseter Botox changes the bone structure of the jaw&#8221;<\/h3>\n<p>The procedure acts exclusively on soft tissue \u2014 specifically, the masseter muscle. It does not alter the mandible (jaw bone) in any way. Patients with a wide jaw caused primarily by bone structure rather than muscle hypertrophy may find the improvement more modest than they anticipated. This is exactly why a proper in-person assessment matters: distinguishing between muscular and skeletal jaw width is essential for setting realistic expectations. In cases where bone plays a significant role, a surgeon such as Dr. Karibe can discuss complementary options \u2014 for example, whether buccal fat removal or other facial-contouring procedures might be appropriate to consider alongside injections.<\/p>\n<h2>Masseter Botox Cost 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=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 Masseter Botox Cost in Tokyo\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_27925591_1785108071.webp\" alt=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 Masseter Botox Cost in Tokyo\" \/><\/figure>\n<p>Pricing for masseter Botox in Tokyo varies based on the product brand, the number of units required, and the clinic. At BIOTOPE CLINIC, the following ranges apply:<\/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;\">Allergan Botox<\/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;\">Globally established brand; dosing adjusted per individual<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Korean-brand botulinum toxin<\/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;\">Reputable alternatives; suitable for many patients<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Initial consultation fee<\/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;\">Standard initial visit<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Dr. Karibe surgical consultation<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">\u00a52,200<\/td>\n<td style=\"border: 1px solid #ccc; padding: 10px 12px; vertical-align: top;\">Where surgical options are being discussed alongside injectables<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The masseter is a large muscle and typically requires more units than, for example, a glabellar (frown lines) treatment. The total cost for a bilateral (both sides) jaw-slimming session therefore tends to fall toward the mid-to-upper end of the Botox price range. For context, clinics across central Tokyo generally charge between \u00a530,000 and \u00a580,000 for a standard masseter Botox session, depending on brand and dose, which aligns with BIOTOPE CLINIC&#8217;s pricing structure.<\/p>\n<p><strong>For an accurate quote, we recommend booking a consultation.<\/strong><\/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<\/h2>\n<figure style=\"margin: 1.5em 0;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; border-radius: 8px;\" title=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 What to Expect: Before, During, and After\" src=\"https:\/\/kojihifu.com\/english\/wp-content\/uploads\/2026\/07\/pexels_3985311_1785108072.webp\" alt=\"Masseter Botox Tokyo: cost, effects, and what to e \u2014 What to Expect: Before, During, and After\" \/><\/figure>\n<h3>Before the appointment<\/h3>\n<p>No special preparation is required in most cases. Patients are generally advised to avoid alcohol for 24 hours prior and to let the practitioner know about any medications \u2014 particularly blood thinners such as aspirin, ibuprofen, or anticoagulants \u2014 as these can increase bruising.<\/p>\n<p>Patients with a history of neuromuscular disorders, pregnancy, or breastfeeding should disclose this at the time of booking, as botulinum toxin is contraindicated in these situations.<\/p>\n<h3>During the procedure<\/h3>\n<p>The treatment itself takes around ten to fifteen minutes including preparation. The injection points are marked, the skin is cleaned, and the injections are delivered with a fine needle.<\/p>\n<p>Topical numbing cream is available on request but is rarely considered necessary by patients experienced with injections. Minor swelling or redness at the injection sites is normal and typically fades within a few hours.<\/p>\n<h3>After the procedure and recovery<\/h3>\n<p>There is no meaningful downtime. Most patients return to work or social activities the same day. It is advisable to avoid vigorous massage of the jaw area, strenuous exercise, and lying face-down for the first four hours. Chewing very hard foods (such as tough meat or hard candy) is best minimised in the first day or two, though normal eating is fine.<\/p>\n<p>In Dr. Karibe&#8217;s clinical experience at<strong> BIOTOPE CLINIC<\/strong>, the most common post-treatment concern from international patients is not discomfort but impatience \u2014 results genuinely take weeks to develop, and a follow-up check at six to eight weeks is standard practice to assess whether a touch-up dose is appropriate.<\/p>\n<h2>Who Is a Good Candidate?<\/h2>\n<h3>Suitable candidates<\/h3>\n<ul>\n<li>Adults with visible <strong>masseter hypertrophy<\/strong> (enlarged chewing muscle) confirmed on examination<\/li>\n<li>Patients who<strong> grind their teeth<\/strong> (bruxism) or habitually clench their jaw<\/li>\n<li>Those seeking a softer, more oval or V-shaped facial contour without surgery<\/li>\n<li>Patients with realistic expectations about the gradual timeline and the degree of change achievable<\/li>\n<\/ul>\n<h3>Who should proceed with caution or avoid the treatment<\/h3>\n<ul>\n<li>Individuals whose wide jaw is predominantly skeletal (bone-related) rather than muscular \u2014 results may be limited<\/li>\n<li>People with neuromuscular disorders such as myasthenia gravis or Lambert-Eaton syndrome<\/li>\n<li>Those who are pregnant or breastfeeding<\/li>\n<li>Patients with known allergy or sensitivity to botulinum toxin or its excipients<\/li>\n<li>Anyone taking aminoglycoside antibiotics or other drugs that potentiate neuromuscular blockade \u2014 discuss with the prescribing physician first<\/li>\n<\/ul>\n<p>An in-person consultation is the only reliable way to determine whether masseter hypertrophy \u2014 rather than bone width, subcutaneous fat, or a combination of factors \u2014 is the primary cause of the jawline appearance. This assessment guides both product selection and realistic outcome expectations.<\/p>\n<h2>Frequently Asked Questions<\/h2>\n<dl class=\"kj-faq\">\n<dt>Q. Will masseter Botox affect my ability to chew normally?<\/dt>\n<dd>For the vast majority of patients, chewing function is not meaningfully affected. The masseter is one of several muscles involved in mastication, and the dose used for cosmetic purposes reduces bulk without eliminating muscle function. Some patients notice a very mild change in chewing strength in the first two to three weeks, which resolves as the body adapts.<\/dd>\n<dd><\/dd>\n<dt>Q. How many sessions will I need to see a noticeable difference?<\/dt>\n<dd>Many patients see satisfying results after a single session, though patients with pronounced hypertrophy may benefit from a second treatment three to four months later to consolidate and deepen the effect. Clinical reports indicate that repeated sessions can extend the duration of results over time, as the muscle gradually adapts to reduced activity.<\/dd>\n<dd><\/dd>\n<dt>Q. Is masseter Botox permanent?<\/dt>\n<dd>No. The effects are temporary by nature. Results from a single session last approximately four to six months. Some patients who undergo regular treatments over one to two years do report that their masseter <strong>appears permanently smaller<\/strong> even when treatments are paused, possibly due to long-term atrophy \u2014 but this varies significantly between individuals and cannot be guaranteed.<\/dd>\n<dd><\/dd>\n<dt>Q. Can I combine masseter Botox with other treatments?<\/dt>\n<dd>Yes, in many cases. Masseter Botox is commonly combined with<strong> hyaluronic acid fillers<\/strong> (for chin projection or cheek definition), <strong>HIFU<\/strong> (for skin tightening along the lower face), or thread lifts to achieve a more comprehensive facial-contouring result. Dr. Karibe can advise on which combinations are appropriate based on individual anatomy during the consultation.<\/dd>\n<dd><\/dd>\n<dt>Q. Is the procedure safe for all skin types and ethnicities?<\/dt>\n<dd>Botulinum toxin injections do not carry the same pigmentation risk as certain laser treatments, making them generally suitable across all skin types and ethnicities. The assessment of masseter hypertrophy, however, should be performed by a practitioner experienced with diverse facial anatomies, as ideal outcomes and unit dosing may differ between individuals.<\/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>Where to Get Masseter Botox in Tokyo (English-Speaking Consultation)<\/h2>\n<p>Within our clinic group, English-speaking consultations are handled at <strong>BIOTOPE CLINIC in Shirokanedai (Minato-ku, Tokyo)<\/strong> by Dr. Jun Karibe, a board-certified plastic surgeon certified by the Japan Society of Plastic and Reconstructive Surgery. Our sister clinic, <strong>Kojimachi Dermatology &amp; Plastic Surgery Clinic<\/strong> in Ichigaya (Chiyoda-ku), serves as the group&#8217;s main office and focuses on Japanese-language, insurance-covered dermatology \u2014 it does not currently offer English-speaking doctor consultations.<\/p>\n<p>All English enquiries regarding masseter Botox, facial contouring, or any cosmetic treatment should be directed to BIOTOPE CLINIC via LINE or WhatsApp.<\/p>\n<h2>Summary<\/h2>\n<p>Masseter Botox is a well-established, non-surgical approach to softening a square or wide jawline by temporarily reducing the bulk of the chewing muscle.<\/p>\n<p>Results develop gradually over four to eight weeks and typically last four to six months per session, with evidence suggesting that repeated treatments can extend and deepen the effect over time. It is not suitable for everyone \u2014 particularly those whose jaw width is primarily skeletal \u2014 and realistic expectations are best set through a proper in-person assessment.<\/p>\n<p>Pricing at <strong>BIOTOPE CLINIC<\/strong> ranges from approximately \u00a59,900 to \u00a5148,000 depending on the botulinum toxin product selected and the number of units required, with an initial consultation fee of \u00a53,300. For an accurate quote specific to your anatomy and goals, booking a consultation is recommended.<\/p>\n<p>If you have questions about masseter Botox, English-speaking consultations are handled at <strong>BIOTOPE CLINIC<\/strong> in Shirokanedai (Minato-ku, Tokyo) by Dr. Karibe. Our sister clinic Kojimachi Dermatology &amp; Plastic Surgery Clinic in Ichigaya (Chiyoda-ku) handles Japanese-language insurance dermatology. English enquiries: LINE or WhatsApp.<\/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>Ahn J, Horn C, Blitzer A. Botulinum toxin for masseter reduction in Asian patients. Archives of Facial Plastic Surgery. 2004;6(3):188\u2013191.<\/li>\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>Shim KS, Kim JH, Lee SH, Jung YS. Quantitative evaluation of masseter muscle volume change after botulinum toxin type A injection using ultrasonography. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology. 2014;117(4):e291\u2013e296.<\/li>\n<li>Raspaldo H, Niforos FR, Gassia V, et al. Lower-face and neck antiaging treatment and prevention using onabotulinumtoxin A: the 2010 multidisciplinary French consensus \u2014 Part 2. Journal of Cosmetic Dermatology. 2011;10(2):131\u2013149.<\/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\/forehead-botox-tokyo-cost-results\/\" target=\"_blank\" rel=\"noopener\">Forehead Botox Tokyo: Cost, Results &amp; What to Expect<\/a><\/li>\n<li><a href=\"https:\/\/kojihifu.com\/english\/botox-vs-dermal-fillers-which-treatment-is-right-for-you\/\" target=\"_blank\" rel=\"noopener\">Botox vs Dermal Fillers: Which Treatment Is Right for You?<\/a><\/li>\n<li><a href=\"https:\/\/kojihifu.com\/english\/botox-in-tokyo\/\" target=\"_blank\" rel=\"noopener\">Natural Botox Treatment in Tokyo for International Patients<\/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":"Masseter Botox in Tokyo slims square jawlines non-surgically. Learn costs, results duration, candidate criteria, and what to expect from this popular facial contouring treatment.","protected":false},"author":4,"featured_media":9585,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,21],"tags":[550,24,25,26,29,49,43],"class_list":["post-9586","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cosmetic-treatments","category-skin-dermatology","tag-botox-injection","tag-masseter-botox","tag-jawline-slimming","tag-tokyo-clinic","tag-facial-contouring","tag-jaw-reduction","tag-non-surgical"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts\/9586","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=9586"}],"version-history":[{"count":1,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts\/9586\/revisions"}],"predecessor-version":[{"id":9615,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/posts\/9586\/revisions\/9615"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/media\/9585"}],"wp:attachment":[{"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/media?parent=9586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/categories?post=9586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kojihifu.com\/english\/wp-json\/wp\/v2\/tags?post=9586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}