Dr. Takahiro Miki
Profile
After graduating from Kawasaki Medical University, he practiced orthopedic surgery at university hospitals and general hospitals, gaining experience in a wide range of fields, including trauma, sports injuries, regenerative medicine, and ultrasound-guided treatments. He continued to hone his skills as a board-certified orthopedic surgeon recognized by the Japanese Orthopaedic Association and joined YAYOI CLINIC in 2025. Specializing in skin-rejuvenation injections, Botox, and ultrasound-guided fascial release, he provides aesthetic medical treatments tailored to each individual’s needs, addressing both beauty and health.
If you’re interested in Botox injections at a cosmetic dermatology clinic in or around Naka Ward, Hiroshima City, you probably have many questions, such as “Is it painful? How effective is it?” or “Where can I find a skilled doctor with good reviews?” Botox injections are a treatment designed to reduce the appearance of expression lines and help you achieve a more defined facial contour. In this article, YAYOI CLINIC, a cosmetic dermatology clinic located in Naka Ward, Hiroshima City, explains the basics of Botox injections and answers some frequently asked questions.
What You Need to Know First! An Explanation of the Basics of Botox Injections

Before getting Botox injections at a cosmetic dermatology clinic in or around Naka Ward, Hiroshima City, let’s take a closer look at the basics of the procedure.
■What Results Can You Expect from Botox Injections? Treating Wrinkles, Jawline, and Excessive Sweating
Botox injections are a procedure that involves injecting a protein derived from Clostridium botulinum type A.It temporarily inhibits the release of neurotransmitters involved in muscle movement.. This helps relieve muscle tension and can address the following concerns.
| Effects | Specific Targets | Changes We Can Expect |
| Caring for Expression Lines | Horizontal wrinkles on the forehead, vertical wrinkles between the eyebrows, laugh lines at the corners of the eyes, and "prune-like" wrinkles on the chin, etc. | Relieves muscle tension and makes expression lines less noticeable |
| Care for Prominent Jawlines | Prominent Jaws Caused by Masseter Muscle Development | It relaxes muscle tension, creates a defined jawline, and helps alleviate teeth clenching. |
| Hyperhidrosis Care | Excessive sweating of the armpits, palms, and soles of the feet | It suppresses the activity of sweat glands and reduces excessive sweating. This helps reduce unpleasant odors. |
| Care for the Shoulders and Neck | Tension in the shoulders and neck, sloping shoulders, hunched shoulders, etc. | By targeting the trapezius muscle, we help create a sleek, streamlined look from the neck to the shoulders. |
■ Features of “Botox Vista®” and How It Differs from Other Formulations
Generally speaking, “Botox” refers to the registered trademark of a product manufactured and sold by Allergan, Inc. of the United States. Among these, Allergan’s “Botox Vista®” is widely used in Japan for wrinkle treatment and is a leading product with a significant global market share.Provided under strict quality controlされているため、安全性と品質を重視する方から選ばれています。
また、日本国内では韓国製の「ボツラックス」「ニューロノックス」、ドイツ製の「ボコーチュア(ゼオミン)」なども広く知られていますが、クリニックによって導入する製剤はさまざまです。
以下に広島市中区の美容皮膚科ヤヨイクリニックで提供する3つのボトックス製剤の特徴をまとめました。
| Formulation name | feature |
| Botox Vista® | Quality control is a top priority, and with a proven track record worldwide, consistent results are being maintained. |
| NABOTA | A pharmaceutical product manufactured by Daeun Pharmaceutical in South Korea. It has been approved by the U.S. FDA (Food and Drug Administration) and is characterized by its high purity. |
| CORETOX | A product manufactured by Meditox of South Korea. It does not contain complex proteins, and precautions have been taken to minimize the risk of antibody production. |
世界的な実績を優先するならボトックスビスタ®が選択肢の一つとなりますが、予算や通う頻度などで適した製剤は異なります。カウンセリング時にそれぞれの特徴を十分に確認し、納得した上で選択することが重要です。
■ When Do the Effects Start? Estimated Duration by Body Part
Although the onset of Botox injections varies from person to person, the effects generally begin to appear gradually about 2 to 3 days after the procedure and stabilize in about 2 weeks. After that,A characteristic of this is that its effects gradually diminish over a period of 3 to 6 months.Please refer to the following guidelines for the duration of the effect.
| part | Approximate duration |
| Expression lines (forehead, between the eyebrows, outer corners of the eyes, etc.) | About 3 to 4 months |
| Large muscles such as the masseter (jaw muscle) | About 4 to 6 months |
| Treatment for Excessive Sweating (Underarms, etc.) | About 3 to 6 months |
If you wish to maintain your current condition, it is recommended that you receive regular treatments before your condition fully reverts to its original state. Generally speaking,In many cases, injections are continued every 3 to 4 months.That's probably true. However, if you undergo frequent treatments over a short period of time, your body may develop antibodies to Botox, which can reduce its effectiveness; therefore, it's important to maintain an appropriate interval between treatments as directed by your doctor.
What to Expect on the Day of Your Botox Treatment
Before getting Botox injections at a cosmetic dermatology clinic in the Naka Ward area of Hiroshima City, let’s take a closer look at the basics of the procedure. Here, we’ll walk you through the procedure at Yayoi Clinic.
■Step 1: Counseling and Medical Examination
First, the doctor will conduct a consultation after you have removed any makeup from the area where you wish to receive the injections. While discussing the look you’re hoping to achieve,We assess the condition of wrinkles and facial muscle movement to determine the appropriate injection sites and dosage.。
具体的な施術内容や期待できる効果、作用の持続期間、ダウンタイムなどについてもご説明しますので、痛みの不安や施術に疑問点がある場合はお気軽にご相談ください。
■Step 2: Treatment
We will mark the appropriate injection sites for the Botox solution. If you are concerned about pain, we can apply an anesthetic cream beforehand. We will carefully inject the Botox solution into the target areas, such as the face, using an ultra-fine needle. The duration of the procedure varies from person to person depending on the specifics, butA short time—about 10 minutesIt is.
■Step 3: Aftercare and Postoperative Follow-Up
Starting on the day of your Botox injectionYou can apply makeup, wash your face, and take a bathです。ただし、数日間は注入部位をこすったり、マッサージしたりすることは避けてください。また、施術当日は、激しい運動やサウナ、飲酒も控えましょう。
なお、ヤヨイクリニックでは効果がピークになる14日前後に再来院いただき、診察を行った上で必要に応じて追加注入をご提案する場合もあります。
Frequently Asked Questions About Botox Injections

Finally, to help those considering Botox injections at cosmetic dermatology clinics in and around Naka Ward, Hiroshima City feel confident about undergoing the procedure, we’ve answered some frequently asked questions.
How much pain will I feel during the procedure?
The level of pain felt during Botox injections varies from person to person. Pain is felt when,A slight prick when the needle is inserted and when the medication is injected。施術時間は短いため、身体への負担は比較的少なく済むでしょう。
多くのクリニックでは、極細針を使用したり、施術前に麻酔クリームの塗布や患部を冷却したりしてボトックス注射の痛みを和らげる工夫を行っています。
■Can I feel the effects after just one injection?
Botox injections, in most cases,You can easily feel the difference after each treatment.This is a treatment. Muscle tension typically eases gradually over the course of a few days following the injection, and the muscles generally settle into a relaxed state within about 1 to 2 weeks.
■ Is there any downtime?
Botox injections are a procedure with minimal downtime. In rare cases, you may notice needle marks, swelling, redness, or bruising at the injection site, but these symptoms usually subside within a few days to a week. You can cover them with makeup and go about your daily routine as usual; however, if you have any concerns, please consult your doctor.
■ Conclusion.
広島市中区周辺の美容皮膚科でボトックス注射を検討される方は、施術前に製剤の種類や持続期間、ダウンタイムなどを理解しておきましょう。そして、信頼できる医師を選ぶことが、納得のいく施術への第一歩です。
広島市中区の美容皮膚科ヤヨイクリニックでは、今泉式®ボトックス注射を採用しております。一人ひとりの骨格や表情筋の動きを考慮しながら、より自然で美しい仕上がりを目指した施術をご提案しています。まずはお気軽にカウンセリングでご相談ください。
広島の美容皮膚科・美容内科・美容外科・アートメイク ヤヨイクリニック(YAYOI CLINIC)では、お肌、お体、お顔のお悩み別に治療法をご紹介しています。
皆さまにより良い選択肢をご提案できますよう一人ひとりのお肌の状態を見極め、治療期間やご予算、ダウンタイムの許容範囲などご希望に合わせた治療方針を立案していく考えです。
お悩みのある方は、まずはカウンセリングにお越しください。
■Related Articles Recommended for You
【施術の内容】ボトックス注射
【施術回数の目安】3~4ヶ月ごとに1回※効果がピークになる14日前後の再来院をおすすめしています。
【費用】・1単位 ¥649~¥869(+施術料 ¥22,000)※使用する製剤・単位数によって個人差があります。
【副作用・リスク】
Headache, pain and swelling at injection site, partial muscle weakness, redness, bruising, skin tightness, numbness, prickling sensation, nausea, temporary dent, internal bleeding, difficulty swallowing, pneumonia, anaphylaxis, severe lethargy, etc.
【使用機器について】
Botox treatment includes treatments that are either unapproved drugs in Japan or treatments that are different from those approved for use in the pharmaceutical industry.
Drugs and medical devices used for treatment were imported through a private importation procedure based on the judgment of a physician at our clinic.
https://www.yakubutsu.mhlw.go.jp/individualimport/purchase/index.html
There are no other domestically approved drugs with the same ingredients or performance, except for those approved by the pharmaceutical affairs bodies.
Information on safety, etc. in other countries
-BOTOX VISTA® approved by the Japanese regulatory authorities for the treatment of expression lines between the eyebrows or at the corners of the eyes in adults under 65 years of age.
-NABOTA receives U.S. FDA approval
-CORETOX® receives Korea MFDS approval
About the Adverse Reactions Relief System for Drugs
In the unlikely event of serious side effects, the drug is not covered by the government's Adverse Drug Reactions Relief System.



