幹細胞培養上清液（点滴・注入）: Downtime
Some of the products described on this page have not been approved as pharmaceuticals in Japan. They are imported personally under the responsibility of the treating physician, and they are not guaranteed to have the same efficacy and safety as domestically approved medications. In some cases, no approved medication with the same active ingredient exists in Japan. If a health problem occurs, it will not be covered by Japan's Relief System for Sufferers from Adverse Drug Reactions. Safety information from other countries differs from product to product. Before undergoing treatment, be sure to receive a thorough explanation from your doctor.
- Downtime at a glance
- Recovery timeline: treatment day to final result
- Common symptoms
- When can I do what? (Daily-life restrictions)
- Pain and anesthesia
- Tips for a smoother recovery
- Risks and side effects (the honest version)
- Spacing and combining with other procedures
- Who it may suit / who should be cautious
- Frequently asked questions
Downtime at a glance
For an IV drip, expect little more than redness at the insertion site; for an injection, needle marks and light bruising are a rough guide of a few days to a week. Please note that products using culture supernatant are not approved in Japan.
Typical downtime is A few hours to 1 week (the IV insertion site often settles the same day; if bruising appears after an injection, it usually fades almost completely in about 1–2 weeks), and most people feel comfortable being seen in public after Often said to be possible from the same day to the next day (cover any post-injection redness or bruising with makeup). How much swelling or bruising appears varies from person to person, depending on constitution and the extent of treatment.
Recovery timeline: treatment day to final result
With an injection, needle marks, pinpoint redness, or slight bumps may appear, and cooling the area is said to help ease them. With an IV drip, mild redness may appear at the insertion site, but in most cases it is said to settle within the same day. For the rest of the day, it is reassuring to avoid rubbing the area firmly and to skip strenuous exercise, alcohol, and long baths. If you notice any change in how you feel, such as feeling unwell or itching, contact a medical institution promptly.
For most people, needle marks and redness at the injection site become less noticeable and can generally be covered with makeup. If bruising is going to appear, it may show up as a black-and-blue mark around this time. Redness at the IV insertion site is said to become barely noticeable for most people. Because the skin can feel dry, it is reassuring to moisturize more carefully than usual.
By this point, redness and needle marks at the injection site have often become hardly noticeable. If bruising has appeared, it may be visible as a black-and-blue mark around now, but it tends to fade gradually.
Needle marks and redness often become almost undetectable. Even if there is bruising, it typically turns yellowish and fades to a point where it can be hidden with concealer. Some people begin to feel a change in their skin's condition, but what people actually notice varies from person to person.
This is the point at which the visible downtime is said to have largely settled. A single session may not produce a noticeable change, and some facilities may recommend multiple sessions; however, because no official public evaluation supporting efficacy has been established, discuss the number of sessions and your overall plan carefully with a physician.
Some people repeat the treatment at set intervals with the aim of changing their skin quality. However, because products using culture supernatant are not approved in Japan and there remains uncertainty about the outlook for their efficacy and safety, we recommend deciding whether to continue and how far apart to schedule sessions after being examined by a physician.
Bars show approximate swelling levels (individual results vary).
Common symptoms
| Symptom | Likelihood | When it appears | How long it lasts | Notes |
|---|---|---|---|---|
| Needle marks and pinpoint redness at the injection site | High | Immediately after treatment | A few hours to 1 day | Temporary redness or small bumps can appear at the points injected into the skin, but they are said to become inconspicuous within the same day to the next day in most cases. |
| Redness and mild swelling at the IV insertion site | Medium | Immediately after treatment | A few hours to 1 day | With an IV drip, temporary redness or slight swelling may appear where the needle was inserted, such as on the arm, but in most cases it is said to settle within the same day. |
| Bruising (black-and-blue marks) | Medium | Same day to the next day | 1–2 weeks | This can occur if the needle touches a small blood vessel during an injection or IV insertion. It is said to appear more readily in areas where the skin is thin. |
| Redness, warmth, and mild swelling | Medium | Immediately after treatment | A few hours to 3 days | When delivered into the skin by water-glow injection or microneedling, redness, a stinging sensation, or a feeling of puffiness may appear. The degree and duration are said to vary depending on the method used. |
| Puffiness and a heavy, sluggish feeling | Low | Immediately after treatment to a few days later | A few days | Some people feel puffiness at the injection site or temporary fatigue after an IV drip, but in most cases this is said to settle on its own. |
| Allergy-like reactions such as itching or rash | Low | During to after treatment | Varies from person to person | Your body may react to the product, potentially causing itching, rash, or feeling unwell. If you notice anything unusual, contact the medical institution where you had the treatment right away. |
When can I do what? (Daily-life restrictions)
| Activity | Typically OK from | Key point |
|---|---|---|
| Makeup | From the next day (sometimes the same day if you avoid the injection sites); from the same day if you had only an IV drip | Right after an injection, avoid rubbing the needle-mark areas firmly. Guidance may differ from one facility to another. |
| Face washing | From the same day (gently, without rubbing) | If you had an injection, it is reassuring to avoid vigorous massage or friction on the day of treatment. |
| Showering | Often said to be OK from the same day | A lukewarm shower is generally said to be fine. Avoid rubbing the IV insertion site. |
| Bathing (soaking in a tub) | From the next day (on the day itself, keep it short and lukewarm) | A long soak on the day of treatment improves circulation and can make redness and bruising more likely to appear, so it is reassuring to avoid it. |
| Alcohol | From the next day | Drinking on the day of treatment may make bruising and redness more likely, so it is reassuring to avoid it. After an IV drip, also watch for any changes in how you feel. |
| Exercise | From the next day (light exercise); for strenuous exercise, use 2–3 days later as a rough guide | Strenuous exercise right after treatment is said to sometimes lead to redness, swelling, or bruising. |
| Sauna and hot-stone bathing | Use 2–3 days later as a rough guide | High heat boosts circulation and can make redness and bruising more noticeable, so it is reassuring to hold off for a few days. |
| Sun exposure and UV protection (if you had an injection) | Be especially thorough for the first few days after treatment | When delivered into the skin by microneedling or similar methods, the skin can become more sensitive to irritation afterward, so it is reassuring to protect against UV rays with sunscreen and the like. |
| Moisturizing (if you had an injection) | From the same day | The skin can become dry after an injection, so carefully applying a gentle, low-irritation moisturizer is said to help keep it in good condition. |
| Massage or firm friction on injection sites | Use a few days later as a rough guide | Kneading or rubbing firmly right after treatment can make redness and bruising more likely, so it is reassuring to hold off for a few days. |
| Pressing and stopping bleeding at the IV insertion site | Immediately after treatment (press firmly for a few minutes) | After the IV needle is removed, it is reassuring to keep pressing on the site for a while to stop bleeding and prevent bruising, following the staff's guidance. |
Pain and anesthesia
The typical pain level is Very mild. An IV drip is generally given without anesthesia. For injections, a topical anesthetic cream or cooling may be used depending on the method and your preference. Please consult your physician for details. For an IV drip, the pain is generally said to be about the same as a blood draw or an ordinary drip — a quick prick as the needle goes in. For injections, you may feel a stinging or mild pain depending on the method, such as water-glow injection, microneedling, or direct injection. How it feels varies from person to person, and for those who are worried about pain, a topical anesthetic (cream) or cooling may be used alongside the procedure.
Tips for a smoother recovery
- Cooling the area right after treatment and avoiding things that overly boost circulation on the day — such as alcohol, strenuous exercise, long baths, and saunas — tends to make redness and bruising less likely to appear.
- If you had an injection, the skin tends to become more sensitive to irritation afterward, so carefully moisturizing and protecting against UV rays is said to help keep your skin in good condition.
- If you bruise easily, discussing any medications or supplements you take (such as blood-thinning drugs) with your physician beforehand can sometimes help manage the risk.
- If you have an important event coming up, it is reassuring to allow for the possibility of post-injection redness or bruising and have the treatment at least several days to a week or more beforehand.
Risks and side effects (the honest version)
- The products used for IV drips and injections of culture supernatant are not currently approved as pharmaceuticals in Japan. No official public evaluation supporting their efficacy or safety has been established, and it is said that their long-term safety is not yet fully understood.
- Allergic reactions to the product (such as itching, rash, or hives) and, rarely, feeling unwell or other changes in your condition may occur. With an IV drip, a vasovagal reaction (feeling faint or lightheaded) can also occur. If you notice anything unusual, contact the medical institution where you had the treatment right away.
- Redness, bruising, swelling, or pain may appear at the IV insertion site or injection site. With injections, the degree of redness and stinging varies depending on the method.
- Risks have been pointed out in cases of infection or where hygiene management or product quality is inadequate. It is important to check in advance where the supernatant comes from (what kind of cells were cultured) and how it is managed and controlled, and to ask your physician for an explanation if you have any questions.
- People who are pregnant or breastfeeding, or who have a chronic illness or take medication, may not be able to have this treatment. Always tell your physician in advance.
- How the effects appear and are felt varies greatly from person to person, and a clear change can be hard to notice. As for whether to have the treatment and how many sessions or what plan to follow, always be examined and advised by a physician, bearing in mind that it is not approved in Japan.
Spacing and combining with other procedures
If you have a big day such as a wedding or a photo shoot, it is reassuring to allow for the possibility of post-injection redness or bruising and have the treatment at least several days to a week or more beforehand. Even for an IV drip alone, it is reassuring to plan with enough leeway to check for any changes in how you feel. Some people repeat the treatment at set intervals, but products using culture supernatant are not approved in Japan, and there is no established standard for the appropriate interval or number of sessions. Watching the state of your skin and general condition, decide on the spacing and whether to continue by following your physician's instructions.
| Combined procedure | Timing | Wait time | Reason |
|---|---|---|---|
| Skin Booster (Water Glow Injection) | Same day OK | May be used together on the same day as the means of injection | The water-glow injection technique may be used to deliver the culture supernatant into the skin. Because needle marks and redness can overlap, the physician adjusts the amount and areas. Whether it can be done is decided by the physician based on your skin's condition. |
| Microneedling (Needle Treatment) | Same day OK | May be used together on the same day as the means of injection | It may be combined with the aim of making tiny holes in the skin with fine needles and letting the culture supernatant penetrate through them. Because redness becomes more likely, discuss aftercare and scheduling with your physician. |
| Laser Toning / Fractional Laser | Same day OK | The same day, or a gap of a few days depending on the state of your skin | In some combinations the laser is used to create a penetration path for delivery, and in others the treatments are split across separate days. Because heat and redness can overlap, the physician decides the order and interval. |
| HIFU (High-Intensity Focused Ultrasound) | Wait required | After redness and swelling have settled (use roughly a few days to a week as a guide) | Having a heat-based treatment and an injection around the same time can add to the burden on the skin. To keep the recovery easy to follow, it is recommended to discuss the order and interval with your physician. |
| Botox Injection / Hyaluronic Acid Filler | Wait required | The physician decides on the same day or a separate day (a gap of a few days may be left if bruising would overlap) | As injection treatments with different goals, they are sometimes combined, but needle marks and bruising can overlap. The physician adjusts the areas and order. |
Who it may suit / who should be cautious
May suit you
- People interested in conditioning their skin and overall physical condition
- People who want to consider it with a clear understanding that it is a treatment not approved in Japan
- People looking for a treatment with relatively light downtime
- People who want to discuss combining it with other skin-conditioning or injection treatments
Consider carefully
- People who are pregnant or breastfeeding, or who are hoping to become pregnant soon
- People with a history of allergy to the product
- People with an infection or inflammation at the treatment site
- People who feel uneasy about the use of an unapproved product and cannot be fully reassured
- People with a chronic illness or on medication whom a physician judges unsuitable