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A garlic injection is an intravenous therapy that delivers a preparation containing Vitamin B1 (fursultiamine) as its main ingredient.
Many people are surprised and ask, “Are you injecting actual garlic?”
In fact, no real garlic is used at all.
The name comes from allyl sulfide, a compound found in Vitamin B1.
This is the same substance responsible for the aroma of garlic and onions,
and because patients perceive a garlic-like smell during the injection, the treatment came to be called a “garlic injection.”
Note: What is fursultiamine?
Fursultiamine is a derivative of Vitamin B1,
a pharmaceutical ingredient designed to enhance the body’s utilization of Vitamin B1.
It is also widely known as the main ingredient in the over-the-counter energy drink series “Alinamin.”
By delivering it directly into the bloodstream via injection, higher absorption and faster onset can be expected compared with oral intake.
Vitamin B1 is an essential nutrient that converts dietary carbohydrates into energy.
When it is deficient, carbohydrates are not efficiently converted into energy,
and lactic acid—a fatigue-related substance—accumulates in the body, causing tiredness and sluggishness.
However, the body’s reserve of Vitamin B1 is extremely small at only 25–30 mg,
and because it is water-soluble, any excess is quickly excreted in the urine.
According to Japan’s Ministry of Health, Labour and Welfare “Dietary Reference Intakes for Japanese”,
the recommended Vitamin B1 intake for adult men is 1.2–1.4 mg per day,
but those under heavy stress or who drink alcohol frequently consume even more,
making it one of the nutrients that is difficult to maintain through diet alone and that tends to run short.
The most well-known benefit of a garlic injection is fatigue recovery,
but the effects of Vitamin B1 go far beyond that.
The following five benefits can be expected.
The most representative benefit of a garlic injection is fatigue recovery.
Vitamin B1 activates the body’s energy-production pathways
and quickly breaks down accumulated lactic acid (a fatigue-related substance).
Many patients feel their body warm up during the injection, making the rapid onset easy to notice.
Breaking down alcohol consumes a large amount of Vitamin B1.
During periods of frequent drinking, or when an important event is scheduled for the next day,
replenishing Vitamin B1 with a garlic injection
helps support recovery from hangover symptoms (headache, nausea, sluggishness).
Vitamin B1 is also involved in maintaining proper nerve function.
Japan’s Ministry of Health, Labour and Welfare eJIM (Integrative Medicine Information Site) also lists
Vitamin B1 as a nutrient required for the proper functioning of the nervous system.
By supporting peripheral nerve activity,
it is expected to help with stiff shoulders and back pain caused by desk work, as well as eye strain from long hours at the computer.
By accelerating the conversion of carbohydrates into energy, basal metabolism increases.
The body generates heat more easily from within,
which is why it is attracting attention as a way to ease poor circulation and support weight management.
A Vitamin B1 deficiency can weaken immune function.
Regular garlic injections that help keep nutritional status in balance
also contribute to cold prevention during seasonal changes or when you are more prone to illness.
Key point:
A garlic injection is positioned less as a “treatment” and more as “conditioning.”
An increasing number of people use it regularly as “self-maintenance” to care for their body
in the midst of a busy daily routine.
A garlic injection is suitable not only for those whose daily fatigue never seems to go away,
but also for people dealing with a wide range of concerns.
Key point:
Our clinic is within walking distance of Shimbashi Station,
and on weekdays we offer consultations from 14:00 to 21:00,
so you can drop by on your way home from work for treatment.
The procedure itself takes only about 5 minutes, making it ideal for busy people.
For that nagging fatigue you just can’t shake
Five minutes on your way home—wake up tomorrow as a new you.
Get in touch for a free consultation
The main ingredient of a garlic injection is Vitamin B1 (a water-soluble vitamin),
and because any excess is excreted in the urine, serious side effects are extremely rare.
That said, the following symptoms may occur on rare occasions.
| Symptom | Frequency / Characteristics |
|---|---|
| Garlic odor | Perceived only by yourself during the injection. Not noticeable to others and disappears quickly |
| Vein pain at the injection site | A slight stinging may be felt during the injection. It subsides promptly after the procedure |
| Nausea | More likely on an empty stomach. Preventable by eating beforehand |
| Allergic reactions | Very rare. May include hives or rash. Please inform us in advance if you have a history of allergies |
| Diarrhea / headache | May occur rarely. Symptoms are temporary |
Tips: Reducing the risk of side effects
Please visit us after taking in some food and water.
Receiving the injection on an empty stomach increases the risk of feeling unwell.
Also, if you have previously had an allergic reaction to a Vitamin B1 preparation,
be sure to inform the physician in advance.
One drawback of a garlic injection is that
the duration of its effects is limited.
Because Vitamin B1 is water-soluble, it is not stored in the body for long,
and the effect generally lasts about 3 days to 1 week.
For this reason, regular sessions are needed for ongoing fatigue recovery.
In addition, because it is a self-pay treatment (not covered by insurance), the full cost is out of pocket.
However, at our clinic the price starts at a reasonable 800 JPY per dose,
making it easy to continue.
Here we explain how long the effects of a garlic injection last
and how often it is best to receive it.
| Timing | What You May Feel |
|---|---|
| Right after the procedure | A warm sensation. Some people feel the action of Vitamin B1 even during the injection |
| A few hours to the next day | The period when reduced fatigue and a feeling of lightness are most noticeable |
| 3 days to 1 week | Duration of effect (individual variation). Varies depending on constitution and current condition |
| After 1 week | Effects gradually fade. A good time to consider your next session |
Because Vitamin B1 is a water-soluble vitamin, there is no need to worry about side effects from over-intake.
You can continue at a comfortable pace that suits your physical condition and lifestyle.
| Menu | Description | Price (excl. tax) |
|---|---|---|
| Garlic Injection | Standard formulation with Vitamin B1 | 800 JPY / dose |
| Garlic Injection W (High-Strength) | High-concentration version with increased Vitamin B1 | 1,200 JPY / dose |
*All prices exclude tax. A separate consultation fee may apply at the first visit.
*This is a self-pay treatment (not covered by health insurance).
STEP 1 | Arrival and Reception
Please make a reservation in advance and come to the clinic.
First-time patients will complete a medical questionnaire.
STEP 2 | Medical Consultation and Counseling
The physician will ask about your condition and symptoms and determine whether a garlic injection is appropriate.
You can also discuss whether to choose the standard type or the high-strength type (W).
STEP 3 | The Garlic Injection Procedure (about 5 minutes)
A nurse will inject the Vitamin B1 preparation into a vein in your arm.
The treatment is completed in about 5 minutes.
STEP 4 | Completion and Payment
You can return to normal daily activities immediately after the procedure.
Many patients head straight back to work while feeling the effects.
Key point: Total visit time
The first visit takes about 20 minutes; follow-up visits take about 15 minutes as a guideline.
The injection itself only takes about 5 minutes, but the total time includes consultation and reception.
We accept credit cards (VISA, JCB, Mastercard, American Express),
debit cards, and cash.
“If it’s just Vitamin B1, can’t I get it from a supplement or an energy drink?”
Many people wonder the same thing.
It’s true that Vitamin B1 itself is the same ingredient,
but there is a major difference in how it reaches the body.
| Garlic Injection | Supplements | Energy Drinks | |
|---|---|---|---|
| Absorption rate | Nearly 100% (delivered directly into the bloodstream) | Some loss during digestion and absorption | Some loss during digestion and absorption |
| Speed of onset | Felt immediately after the procedure | Gradual, over several days to weeks | Temporary alertness from caffeine, etc. |
| Dosing | Adjusted by the physician based on your condition | Fixed amount | Fixed amount |
| Cost | From 800 JPY per session | About 1,000–3,000 JPY per month | About 200–500 JPY per bottle |
Supplements and energy drinks are convenient and suited to everyday care, but
for those who want “to fix this fatigue right now” or “to make sure Vitamin B1 actually reaches the body,”
a garlic injection—with nearly 100% absorption and a rapid onset—is the better fit.
Q.What is a garlic injection? Is real garlic actually injected?
A.A garlic injection is an injection therapy whose main ingredient is Vitamin B1 (fursultiamine), and no real garlic is used. The name comes from allyl sulfide contained in Vitamin B1, which has an aroma similar to garlic.
Q.How long does the effect of a garlic injection last?
A.There is individual variation, but in general the effect lasts about 3 days to 1 week. For continuous fatigue recovery, a pace of 1–2 times per week is recommended.
Q.Are there any side effects from a garlic injection?
A.Vitamin B1 is water-soluble and any excess is excreted in the urine, so serious side effects are extremely rare. In rare cases, allergic reactions, vein pain at the injection site, or nausea may occur, but these are temporary.
Q.How much does a garlic injection cost?
A.At our clinic, a garlic injection costs 800 JPY (excl. tax) per dose, and the high-strength Garlic Injection W is 1,200 JPY (excl. tax) per dose. This is a self-pay treatment (not covered by insurance).
Q.Will my body smell like garlic after the injection?
A.You may notice a garlic-like smell yourself during the injection, but it is only temporary. Your breath and body will not smell of garlic after the injection, so it is safe even before a meeting or in between work.
Q.How often should I get a garlic injection?
A.In general, a pace of once per week is recommended. Those with strong fatigue can receive it 2–3 times per week. Vitamin B1 is water-soluble, so there is no risk of over-intake and the frequency can be adjusted to your condition.
Q.I’ve heard that garlic injections don’t work. Is that true?
A.Vitamin B1 is essential for energy metabolism, and its fatigue-recovery effect is medically recognized. Unlike oral intake, injections have an absorption rate of nearly 100% and act quickly. That said, how strongly the effect is felt can vary from person to person.
Q.Is there anyone who cannot receive a garlic injection?
A.People with an allergy to Vitamin B1 cannot receive the injection. Also, you may feel unwell on an empty stomach, so please have a meal and drink water beforehand. Pregnant or breastfeeding women should consult with the physician in advance.
In this article, we explained the effects, side effects, pricing, and duration of a garlic injection.
Here is a recap of the key points.
When you feel “I just can’t shake this fatigue” or “I need one more push,”
a garlic injection lets you quickly get yourself in shape in just 5 minutes.
As a new habit for taking care of your body amid a busy daily life,
please give it a try.
Garlic Injection from 800 JPY per dose
Recharge your tired body in just 5 minutes on the way home from work.
Get in touch for a free consultation
Medical Supervision: Physician at Shimbashi Ginza Swift Clinic (Men’s Care Clinic Shimbashi)
Specializing in internal medicine and aesthetic medicine, providing evidence-based care.
At our clinic, garlic injections are administered safely under the supervision of a physician.
*This article is intended to provide medical information and does not constitute individual diagnosis or treatment.
*The effects of the procedure vary by individual. Please consult a physician for details.
*Prices are listed excluding tax. Prices may be revised, so please contact the clinic for the latest information.
References
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