Water light injection x Exosome [umbilical cord derived].
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"What exactly are Exosome Water Light Injections, and what effects do they have?"
"I'm looking for a clinic that offers Exosome Water Light Injections and want to compare prices and more."
Hello, I am a doctor at Smart Skin Clinic, an aesthetic dermatology clinic.
Do you have any of these questions or concerns?
In this article,Having obtained a Ministry of Health, Labour and Welfare Type 2 Regenerative Medicine Provision Plan Number,Smart Skin Clinic, a cosmetic dermatology clinic specializing in regenerative medicine, offers a clear explanation from a professional standpoint.
*If you are comparing clinics and would like to know pricing and other details, please choose the item of interest from the table of contents below.
Group Chief Director, Smart Skin Clinic Group
Ishii Kota
Career
Graduated from Juntendo University School of Medicine
Worked at Tokyo Women's Medical University Hospital and affiliated facilities
Worked at a major aesthetic clinic in Tokyo
Affiliations / Qualifications
Board-certified specialist, Japan Surgical Society
Board-certified specialist, Japanese Society of Anti-Aging Medicine
What is a Water Light Injection x Exosome?
This is a treatment in which an exosome preparation is injected into the face using a machine for injecting products called the Water Light Injection.
For details on the machine called the Water Light Injection, please also see the article below.
Exosomes are components naturally present in the body and have a cell-activating action that delivers anti-aging effects.
If you would like to learn more about exosomes, please also see the article below.
Effect
The following effects on the skin may be expected.
- Anti-aging
- Skin regeneration / overall skin rejuvenation
- Improvement of wrinkles
- Improved firmness and radiance
- Improvement of spots
- Improvement of sensitive skin
Features of Smart Skin Clinic's exosome preparation
Use of umbilical cord–derived exosomes
At Smart Skin Clinic, of the three major types of exosomes—(1) umbilical cord-derived, (2) fat-derived, and (3) dental pulp- and bone marrow-derived—we use "(1) umbilical cord-derived" exosomes.We use them in our treatments.
Compared with other exosomes, umbilical cord–derived exosomes contain more than 14 times the amount of active components, as shown in the figure below.

We would also like to highlight two of these "active ingredients," including specific data.
(1) Rich in active ingredients for the skin
The first is data on the active ingredients for the "skin."
Exosomes offer a variety of anti-aging effects, one of which is their effect on the "skin." As the figure below shows, umbilical cord–derived exosomes contain a richer concentration of active ingredients for the skin than other exosomes.

(2) Rich in the rejuvenating protein "GDF-11"
The second is data on components involved in "rejuvenation."
There is a component called GDF-11 that is involved in rejuvenation, and umbilical cord–derived exosomes contain it in abundance, as the data below shows.

Our "commitment" to price and quality
At our clinic, we are committed to price and quality. To realize this commitment, we take various measures, including a range of cost-cutting efforts (for example, not making the interior lavish, and reducing labor costs by eliminating the reception desk).
For details, please see here.
Smart Skin Clinic's "commitment" to Water Light Injections
Safety Initiatives | Compliance with the Guidance of the Japanese Society for Regenerative Medicine
Our Exosome IV drip therapy is carried out in accordance with the "Guidance on the Clinical Application of Extracellular Vesicles, etc. (1st Edition)," published by the Japanese Society for Regenerative Medicine on April 30, 2024.
This guidance serves as an important set of principles for ensuring the safety and efficacy of exosome therapy, and at our clinic we carry out rigorous quality control and safety measures based on this guidance.
Our clinic's specific measures to ensure safety
- Conducting risk profiling
- We identify the potential risks associated with treatment and take appropriate measures.
- Rigorous preparation processes and quality control
- Our manufacturing processes and quality checks are based on the latest scientific findings.
- Carrying out appropriate verification of effectiveness
- We continually assess the effectiveness of treatment and strive to provide the most suitable care for each patient.
Placing your safety first, we are committed to providing treatment grounded in the latest scientific findings.
Recommended number/frequency of treatments | How many times should I have it?
This is a question we're often asked during actual counseling, so we'll explain it just as we would tell you at the clinic.
- "How many times should I receive Exosome Water Light Injections for the best results?"
-
A set of 3 to 4 sessionsis what we would suggest.
- "What is the ideal interval between sessions?"
-
At intervals of about one monthwould be a good idea.
*The reason we don't speak in absolutes is that with cosmetic dermatology treatments, results vary from person to person, so we're neutrally conveying the methods generally recommended in cosmetic dermatology and by manufacturers. While we don't make guarantees, we generally recommend receiving treatment at the number of sessions and frequency described above.
How to space out other treatments
Many people have had other cosmetic treatments beforehand or wish to have them in the future, so we often receive questions like this during counseling.
We will explain this so that reading it resolves your questions.
- "I'm also having laser treatment—how long should I space it out?"
-
As a general rule, allow about one month between sessions.
This basic guidance applies not only to lasers but to other treatments as well. - "Can I have other treatments on the same day?"
-
As a rule, we do not recommend other treatments on the same day.
Risks and Side Effects・Downtime
Risks, side effects, and downtime may mean roughly the same thing to you, so we will explain them together.
Redness, swelling (puffiness), and pain may occur at the injection site.
The above reactionssubside within 24 hours in most cases.Swelling from the product often subsides within about 3 hours.
Another point we always make sure to mention is"bruising."the possibility that it may occur. This is sometimes misunderstood, so let us explain it carefully.
First, please see below.
Due to the nature of the treatment, bruising may—though not always—occur at the needle puncture site. If bruising does occur, it gradually fades over the course of one to two weeks.
As noted here, bruising occurs at a certain frequency (about 3–10%).
Bruising happens when the needle strikes a "blood vessel (a vein)" beneath the skin, causing a small tear so that blood leaks out and clots.
In other words, to prevent this, it is best "not to hit a blood vessel," but these blood vessels (veins) are very thin, and their course (where they run) differs from person to person. For this reason, it cannot be prevented 100%.
At Smart Skin Clinic, we make every effort to lower the risk of bruising as much as possible. We would appreciate your understanding of this when you visit.
Aftercare|advice for daily life after treatment
First we will summarize the "what not to do" items, and then explain the reasons in detail.
So, let us first summarize "what not to do" after the treatment.
[What not to do within 24 hours]
・Strenuous exercise
・Sauna
・Bathing in hot water
・Excessive alcohol consumption
・Use of retinol or hydroquinone cream
[What is best avoided within 24 hours]
・Exercise
・Bathing
・Drinking alcohol
- Makeup *Fine after 24 hours (the next day is also acceptable)
[What you may do within 24 hours]
・Washing your face|Please do so gently to avoid friction.
・Skincare|Please use low-irritation cosmetics and focus mainly on moisturizing.
[What is best avoided within 1 week]
- Massage of the treated area
・Use of retinol or hydroquinone cream
Next, we will briefly explain "why you should not do these things."
The area injected with the drug will have mild"state of inflammation."This is the case.
Inflammation, put simply,"is a state in which the body is working hard to return to its original condition."That's how we can describe it. Since the body is working hard to improve the injection site, it is best to leave it alone.
What the "things not to do within 24 hours" have in common is "excessively increasing blood flow or applying heat." These can promote inflammation, which may result in a condition called "post-inflammatory hyperpigmentation" or slow the healing process.
In short,"To avoid promoting inflammation, don't irritate the area and let it heal naturally."That is what we mean.
Level of pain|need for anesthesia
The pain of Exosome Water Light Injections is moderate to high.
Need for anesthesia|High
Pricing
| 5.5 cc (entire face) | Price |
|---|---|
| Once | 36,800 yen |
| 3 times | 101,400 yen (¥33,800 per session) |
| 4 sessions | 119,200 yen (per session 29,800 yen) |
Prices include tax
Prices are all-inclusive, covering consultation, needle, and anesthesia fees
There are absolutely no additional upsells on the day of your appointment
Treatment Flow
You can easily book from your smartphone.
A smart, effortless check-in: just give your name and our clinic IT system completes reception right away.
During counseling, please feel free to share any concerns. Rest assured, there is no pushy sales.
We perform the injections carefully while checking in with you throughout.
We explain in detail how to care for the treated area and precautions for daily life.
Those who are not eligible for the treatment
In principle, the treatment can be performed unless you have some serious illness or inflammation in the area to be treated.
The following is provided as reference information, since we are obliged to include it to inform "those who are not eligible for the treatment," so please take a quick look through it.
- Those who are pregnant or breastfeeding
- Those with abnormal immune function or a history of it, and those undergoing immunosuppressive therapy
- Those prone to keloid formation, hypertrophic scars, or pigmentation disorders
- Those with a bleeding tendency, or those using non-steroidal anti-inflammatory analgesics such as aspirin or anticoagulants such as warfarin
- Those with excessive sunburn, eczema, dermatitis, severely inflamed acne, or scabs at the Sunekos injection site
FAQ
- Will I be unable to donate blood?
-
Blood donation is possible.
If exosomes are injected into the skin, as with Dermapen or Water Light Injection, it's fine. If they enter the bloodstream, you will no longer be able to donate blood.
Details
| Treatment Time | About 30 to 45 minutes (not including counseling) |
| Recommended Number & Frequency of Treatments | About 3 to 4 times at one-month intervals |
| Downtime | About 24 hours |
| Treatment on the day of counseling | Available |
| Makeup | From the next day |
| Skincare | From the next day |
| Shower | Possible from the same day |
| Pain | Pain at the moment the needle is inserted and when the product is injected |
[Legal Notices]
Exosome Water Light Injections include procedures using pharmaceuticals or medical devices that are not approved in Japan. The pharmaceuticals and devices used in the treatment are personally imported under the judgment of our physicians.
Please refer to this page for information on medications and similar items that require caution in personal importation.
Ministry of Health, Labour and Welfare, "Medications and Similar Items That Require Caution in Personal Importation."
Smart Skin Clinic
Smart Skin Clinic
A clinic built on the concept of "making aesthetic medicine more accessible and smart."
Rather than spending on ornate interiors, we keep fit-out costs down, and rather than adding equipment indiscriminately, we carefully select only the devices we need to keep equipment costs down.
We aim to "make aesthetic medicine more accessible" for you.

Address: EX Kanda Nishiki-cho Building 8F, 3-16-1 Kanda Nishiki-cho, Chiyoda-ku, Tokyo
Specialties: Aesthetic Dermatology (aesthetic dermatology, medical hair removal, medical body contouring)
Address: EX Kanda Nishiki-cho Building 8F, 3-16-1 Kanda Nishiki-cho, Chiyoda-ku, Tokyo
Specialties: Aesthetic Dermatology (aesthetic dermatology, medical hair removal, medical body contouring)
About the physician supervision of this site
About the physician supervision of this site
This site is operated under the supervision of Smart Skin Clinic's supervising physicians.
This page is operated as a medical institution's website in accordance with the Medical Advertising Guidelines revised and enforced in June 2018, and is produced under the supervision of our supervising physician.
This page is operated as a medical institution's website in accordance with the Medical Advertising Guidelines revised and enforced in June 2018, and is produced under the supervision of our supervising physician.
Physician Who Supervised This Page

Smart Skin Clinic, Chief Medical Director / Physician
Kota Ishii
We oversee treatment policies across the entire group, tailored to the skin condition of each individual patient. The content on this page has been reviewed and approved in line with our clinic's treatment policies.
Interview with Director Kota Ishii
Kota Ishii, our Chief Medical Director, shares our clinic's approach to patient care.
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