Dr. Yayoko Ito
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Graduated from Hiroshima University School of Medicine. After working in the Department of General Medicine, he studied under doctors at the forefront of cosmetic medicine. After acquiring knowledge and skills in aesthetics, he became the director of YAYOI CLINIC in 2023. Her specialties include Botox, hyaluronic acid injections, and customized sagging treatment. His motto is to provide natural and pain-free treatments with careful consultation.
The problem of lines is one that many women face as they age. Whenever they look in the mirror, they may lose confidence. This article therefore details the risks of failure and key points of success for hyaluronic acid injections, one of the most common treatments to approach the appearance of lines. Use the information presented to find the right cosmetic treatment option for you and regain your confident smile.
What is hyaluronic acid injections for laugh lines? Check out the basic information

Hyaluronic acid injections are gaining attention as an effective procedure for improving lines. Let's check out an overview of what kind of treatment it is.
What is Hyaluronic Acid Injection?
Hyaluronic acid injections are a popular cosmetic treatment for many people as a means of improving lines and wrinkles. In this procedure,Inject hyaluronic acid into the dermal layer of the skin to replenish lost volumeAs a result, it can be expected to reduce the appearance of lines and wrinkles. As a result, it can be expected to reduce the appearance of lines and wrinkles.
In addition, hyaluronic acid is naturally present in the body as a component that plays an important role in maintaining skin moisture and elasticity. Therefore,Almost no downtime, making it easy for busy people to try the procedure.The effects of a single treatment vary from person to person, but usually last from 6 months to 2 years. In rare cases, some people may experience temporary side effects such as internal bleeding and swelling, but these usually settle down gradually.
■What effects can be expected from hyaluronic acid in the treatment of laugh lines?
Injecting hyaluronic acid into the laugh lines lifts the wrinkles from the inside and reduces their appearance. At the same time, the moisturizing effect of hyaluronic acidSkin elasticity is improved and the appearance of pores may be reducedTreatment.
Although it varies depending on the formulation used and individual differences, for those with longer durations, the effect lasts about 2 years after a single treatment. However, it is important to select the appropriate injection amount and site, as well as post-treatment care. In general, about 1.0 to 3 cc of the product is often injected for the treatment of laugh lines.
Basic treatment flow and approximate time required
Hyaluronic acid injections themselves are,Completed in as little as about 15 minutesThe treatment is relatively lightweight, as it is performed by a physician. First, the doctor will examine the patient and confirm the area to be treated. If it is determined that the procedure is possible, the doctor will proceed to disinfection and application of anesthetic cream, and then inject the hyaluronic acid formulation into the affected area.
After the injection, light massage for fine-tuning and other procedures are also performed to spread the hyaluronic acid evenly. The overall time required to return to the hospital usually ranges from 30 minutes to one hour, depending on the procedure and the process.
Failures of hyaluronic acid injections and how to deal with them

From here, we will check the common failure patterns of hyaluronic acid injections performed as a treatment for laugh lines, preventive measures, and what to do in the event of an emergency.
Common Failure Patterns of Hyaluronic Acid Injection
There are five main failure patterns that can occur with hyaluronic acid injections for the treatment of laugh lines. First, too much hyaluronic acid is injected into the laugh lines, resulting in an unnatural bulge. This can also occur when the hyaluronic acid is not injected evenly. There are also failures such as imbalance between the left and right sides of the face due to inexperienced injection technique, or lumps due to the use of inferior formulations. Other examples include improper positioning of the injections, which can result in more prominent lines, and allergic reactions that can cause swelling and redness.
■How to prevent hyaluronic acid injection failure?
The first key to preventing the failure of hyaluronic acid injections in the treatment of lines is the skill and experience of the physician performing the procedure. When treating laugh lines with hyaluronic acid, it is important to select a clinic that you can trust. By having a thorough consultation, you can prevent mistakes and create a treatment plan that is appropriate for your individual condition. Bring images or photos of your desired design and clearly communicate it to the doctor. Also, to prevent problems, accurately inform the doctor of your skin type, past history of allergies, and current medications you are taking.
The quality and quantity of the hyaluronic acid injected can also cause failure, so it is important to have a high-quality product used in appropriate quantities. After the procedure, careful aftercare, avoiding massage and strenuous exercise, can prevent the formation of lumps and bumps.
■Is there any way to correct a failure?
If a hyaluronic acid injection procedure is performed to improve laugh lines and should fail, the enzyme hyaluronidase can be used to improve the appearance of the lines.Coping with dissolving injectionsThe enzyme is called "hyaluronic acid". This enzyme breaks down hyaluronic acid, which can improve unnatural bulges and lumps.
Dissolving injections have an immediate effect and can be effective from a few hours to a few days after the procedure for smooth improvement of the problem. One disadvantage, however, is that it may not be possible to dissolve lumps that have formed a membrane or are fibrotic. In addition, dissolving injections themselves have the risk of side effects such as swelling and breathing difficulties, so care should be taken. If correction is necessary, consult the clinic that performed the procedure and take appropriate action.
What are the risks of hyaluronic acid injections? Cautions and countermeasures

Let's discuss the side effects and risks associated with hyaluronic acid injections.
■Possible side effects immediately after the procedure
Temporary swelling and internal bleeding may occur after hyaluronic acid injection, but usually improves within a few days to two weeks. However, some people may experience pain, discomfort, or asymmetry at the injection site, so please check the progress carefully.
Serious side effects are rare.There is a risk of vascular occlusion and infection.but can be minimized by sophisticated techniques and thorough hygiene. Immediately after the procedure, avoid strenuous exercise and alcohol consumption, and be conscious of keeping the area clean. Also, it takes some time for the hyaluronic acid injected in the laugh lines area to adjust to the new hyaluronic acid, so avoid massaging the affected area. If you have any concerns, it is important to consult your doctor immediately.
■Long-term risks and countermeasures
It is also important to understand the risks of hyaluronic acid injections from a long-term perspective. Hyaluronic acid injected in the area of the laugh lines,After 6 months to 2 years, the effect gradually fades. In other words, hyaluronic acid injections are a treatment that is difficult to achieve semi-permanent effects like plastic surgery using a scalpel. Regular treatment is necessary if you want to keep the best condition for yourself.
Repeated injections of hyaluronic acid may result in changes in skin conditions that may not produce the desired result or unnatural fullness. To avoid these risks, it is important to inject the appropriate amount of hyaluronic acid and to follow up regularly.
Aftercare to avoid failure
Aftercare after hyaluronic acid injection is critical to the success of the procedure. Immediately after the procedure, avoid irritation and pressure, and avoid strenuous exercise and prolonged bathing, which can cause swelling and swelling. If you are really concerned about swelling ......, you can use a cooling pack to counteract the swelling. Makeup can generally be applied on the same day, although there are differences depending on the clinic. Please be careful to take good care of your skin, for example, do not scrub your face when washing and cleansing.
■Tips for long-lasting effects
To maintain the effects of hyaluronic acid injections for as long as possible, be sure to protect your skin from UV rays and keep it moisturized. Protecting the skin from UV damage and dryness will make it easier to maintain the effects of hyaluronic acid.
Also,Regular follow-up is also important.to see a doctor every few months. The doctor can advise you on appropriate care methods according to the condition of your skin and changes in your lifestyle. Sometimes, this can lead to early detection and prevention of problems.
■ Conclusion.
Injecting hyaluronic acid into the laugh lines is a procedure that can be tried easily, but it cannot be guaranteed to be completely free of failure. To minimize the risks and obtain satisfactory results, it is essential to select a reliable doctor. Also, make sure that there is adequate counseling before the procedure and proper post-procedure care. Yayoi Clinic (YAYOI CLINIC), with its extensive experience in cosmetic medicine cases, offers a personalized and attentive approach to treatment and your peace of mind. If you are suffering from problems with the treatment of laugh lines, please consider a free consultation with one of our specialists.
Aesthetic Dermatology, Aesthetic Medicine, Aesthetic Surgery, Art Make-up Yayoi Clinic (YAYOI CLINIC) in Hiroshima introduces treatments for different problems of the skin, body, and face.
In order to offer a better option for everyone, we will assess each person's skin condition and formulate a treatment plan that meets their needs in terms of treatment duration, budget, and acceptable downtime.
If you have any concerns, please come for a counseling session first.
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Description of treatment] Hyaluronic acid injection
Duration and number of times of treatment] Every 1 time
Cost】 ¥79,800 per unit (+ ¥22,000 application fee) *The number of units used varies depending on the individual.
Risks, side effects, etc.] Allergic reaction, pain, infection, misalignment of correction position, etc.
[Regarding treatment using unapproved medical devices, unapproved pharmaceuticals, etc.
This treatment includes drugs that are not approved in Japan and treatments that differ from their approved use.
The medicines and medical devices used for treatment were imported by private individuals based on the judgment of the doctors at our clinic. Please refer to the following for information on medicines and other items of concern for personal importation.
https://www.yakubutsu.mhlw.go.jp/individualimport/purchase/index.html
Information on safety, etc. in other countries
-Juviderm Vista® series: approved in Japan for "correction of moderate to severe wrinkles and furrows on the face
There is a possibility that serious risks, side effects, etc. have not been identified.
In the unlikely event of serious side effects, the drug is not covered by the government's Adverse Drug Reactions Relief Program.