Skin Boosters in Korea (Water-Glow, Rejuran, Juvelook) — The Complete Guide

Who it suits / who it doesn't

"Skin booster" is a general term for injection treatments that place a very small amount of active ingredient in many tiny points within the skin (the shallow layer of the dermis) to improve the condition of the skin itself. Unlike fillers or lifting, which change the shape of the face, the goal is better hydration, texture, firmness and glow.

• You feel tightness right after washing and makeup doesn't sit well because of dehydrated skin
• You are bothered by fine lines around the eyes and cheeks, thinning skin or dull skin texture
• Your skin looks rough because of enlarged pores or shallow acne scars
• You want to support skin recovery and regeneration alongside laser treatments
• You want your skin in better condition before an important event

Types of skin boosters — it depends on what is injected

Water-glow injection (hyaluronic acid)

• Hyaluronic acid, a moisturizing substance naturally found in skin, is injected shallowly to replenish hydration.
• Hydrated skin reflects light evenly, giving a "water-glow" look, and results tend to be noticed quickly.

Rejuran (PN)

• The main ingredient is a purified DNA-fragment component extracted from salmon (polynucleotide, PN). Other products use similar ingredients.
• Known as a "regenerative" skin booster that supports a recovery environment for damaged skin, it is widely used for skin texture, fine lines, thin skin and sensitive skin.

Collagen-stimulating types such as Juvelook

• An ingredient that the body gradually breaks down (PDLLA in the case of Juvelook) is injected to stimulate the skin to produce its own collagen.
• Results appear gradually, aiming to improve firmness, pores and shallow scars.

Exosomes

• These products use tiny substances released by cells. In Korea they are mainly used as an adjunct care applied to or absorbed into the skin after laser or microneedling treatments.
• This is a field still under research, and the level of evidence and approved scope vary by product. If you choose it, be sure to confirm which product is used and in what way (topical or injected).

Skin Botox

• Botox is diluted and injected evenly into the shallow layer of the skin. Its purpose differs from regular Botox, which limits large muscle movement.
• It is expected to help with oil, pores and fine lines, and is often combined with other skin boosters.

Comparison by skin concern — which skin booster suits you?

Even the same "skin concern" can have different causes, and the right product differs accordingly. The table below shows general tendencies; the actual choice is made after a doctor's examination.

◎ Main expected effect, ○ May help, △ Not the main purpose

Injection methods — hand injection vs machine injection

Neither is better than the other; the choice depends on the area and purpose. Many clinics use the machine for the whole face and hand injection for delicate spots such as under the eyes and around the nasolabial folds.

Treatment day, step by step

1. 1
   Registration & consultation (about 20 min): your skin condition and concerns are reviewed, and the product, dose and injection method are decided. Your manager interprets.
2. 2
   Cleansing & numbing cream (30–40 min)numbing cream is applied to the whole face to reduce the prickling sensation.
3. 3
   Product checkthe box, label and amount of the product to be used are checked in front of you before it is opened.
4. 4
   Treatment (15–30 min)the product is injected across the whole face, by hand or with a machine.
5. 5
   Soothing (about 15 min)a calming mask or cooling eases redness and warmth.
6. 6
   Heading backyou may have bumps and redness, so bringing a mask or cap makes things easier.

When do results appear, and how many sessions at what interval?

A typical plan for visitors from overseas

1. First visit: diagnosis + 1 skin booster session (together with a laser if needed)
2. After returning home: moisturize, use sunscreen, and share photos of the changes
3. Next visit (1–3 months later): additional sessions or an adjusted combination

Downtime — when do the bumps disappear?

• Same day
  Small raised bumps and redness appear at each injection site. They are more distinct with hand injection.
• Day 1
  The bumps settle down considerably. With water-glow injections they mostly clear within a day.
• Days 2–3
  Bumps from Rejuran and hand injection mostly disappear as well. Faint needle marks or small bruises can be covered with makeup.
• Week 1
  If you had bruising, it fades to yellowish. Your skin starts to feel moist and smooth.
• After 2–4 weeks
  With regenerative and collagen-stimulating types, changes in texture and firmness start to appear gradually from this point.

Sample travel plans

2 nights, 3 days

• Day 1, afternoon
  Arrive → clinic consultation → skin booster treatment (consider water-glow or machine injection, which cause fewer bumps)
• Day 1, evening
  Rest at your accommodation. Avoid saunas, alcohol and strenuous exercise.
• Day 2
  Makeup is possible for most people, and sightseeing and shopping are fine. Sunscreen is a must.
• Day 3
  Fly home. Bring a moisturizing mist and cream for the flight.

3 nights, 4 days or longer (including Rejuran and hand injection)

• Day 1
  Consultation → treatment. Keep the evening plans light because of the bumps
• Days 2–3
  Bumps settle and sightseeing is fine. Taking photos is more comfortable from Day 3 onward.
• Day 4
  Check-up at the clinic before departure → guidance on aftercare at home

How to confirm an authentic product (please check)

Because the product goes directly into the skin, confirming that it is genuine and the correct amount is important. A properly run clinic will gladly accommodate the requests below.

1. Before treatment, check the product name and amount (ml/cc) on the product box and the syringe (or bottle) label.
2. Check that a new, sealed package is opened in front of you.
3. If the product has an authenticity label or serial number, check it too.
4. After treatment, you can ask to see the used syringe or empty bottle.
5. If several products are mixed, ask to be told what is used and how much of each.

Aftercare and warning signs

Aftercare

• Avoid washing your face and wearing makeup on the day; from the next day, go gently with mild products.
• Do not rub or massage the injection areas (unless the clinic has instructed otherwise).
• For 2–3 days, avoid saunas, jjimjilbang, hot baths, alcohol and strenuous exercise.
• For about a week, pause exfoliation, peels and retinol products, and moisturize generously.
• Apply sunscreen thoroughly. The air on the plane is dry, so reapply moisturizer.

Contact your manager right away if

• Redness, swelling or pain keeps getting worse after a day or two
• The injection area feels hot, has pus, or you have a fever
• A hard lump grows or lasts a long time
• The skin turns white or dark and the pain is severe

Questions to ask at your consultation · How to choose a clinic

Good questions to ask at your consultation

1. Which type of skin booster suits my concern, and why?
2. Which product will be used, how many ml (cc), and is it hand injection or machine?
3. Can I see the product opened and the label checked, and the empty syringe after use?
4. Will the doctor perform the treatment personally?
5. How many days of bumps and bruising should I expect? Will it interfere with my travel plans?
6. How many sessions do I need, and when should the next one be after I go home?

Criteria for choosing a clinic

• Whether they examine your skin in person and choose a product for your concern (rather than pushing the same package without a diagnosis)
• Whether they explain the product name, amount and injection method openly and accept requests to confirm authenticity
• Whether they avoid recommending more product combinations or sessions than necessary
• Whether they can communicate in a foreign language and check your progress by photo after you return home

KBEAU connects you with partner dermatology clinics in Gangnam and Apgujeong. If you send a photo of your face before the consultation, we will let you know in advance which type of skin booster suits your concerns and a treatment plan that fits your schedule. On the day, a dedicated manager accompanies you to help with interpretation and authenticity checks.