Searching Noscarna gel how to use? You will find a dozen different answers online — twice a day, three times a day, only on old scars, even on fresh wounds. Most of them come from shops selling it abroad, not from the Korean label.
I am a pharmacist in Gangnam, and Noscarna is one of the products visitors ask me about most. Below is how to use it exactly as the Korean drug approval (MFDS) says, who should not use it, and how it compares with Dermatix.
1. What Noscarna gel is (and isn’t)
Many shops abroad describe Noscarna as a “silicone scar gel.” It isn’t. In Korea it is approved as an over-the-counter medicine, and its active ingredients are:
- Heparin sodium: the same ingredient found in some European scar gels such as Contractubex
- Allantoin: a common skin-soothing ingredient in wound and scar care
- Dexpanthenol: provitamin B5, widely used in skin-repair creams
The base contains a little silicone (dimethicone), but only as an inactive ingredient. The difference matters, because a medicine like Noscarna has safety rules — pregnancy, blood thinners — that a pure silicone gel doesn’t.
2. Noscarna gel how to use: step by step
This is the Korean label (MFDS approval, checked October 2026), put into practical steps.
- Wait until the wound has fully closed. No open skin, no scab, no oozing, stitches out.
- Clean and dry the area.
- Apply a small amount several times a day to the scar and the skin around it.
- Massage lightly until it is absorbed.
- Keep the scar out of the sun. The label specifically warns against sunlight on the scar — cover it or use sunscreen on top during the day.
- In the evening: apply a thick layer on the raised scar
- Cover it with a bandage and leave it on overnight
- Not for children: the label says covering it with a bandage is not suitable for children, especially infants
- Dong-A’s English product page says “apply to wounds and surrounding skin.” That is a direct translation of the Korean label, where “wound” means the healed wound area
- The same label lists cut or unhealed wounds as a contraindication. Do not put Noscarna on fresh, open skin
3. How long does Noscarna take to work?
The label does not give a timeline, and honestly no cream changes a scar in a week or two. Scars keep remodelling for many months after an injury, so treat Noscarna as a daily habit over months, not a quick fix.
- Take a photo in the same light at the start and once a month — day to day you won’t notice change
- Newer scars respond better than scars that have been there for years
- If a scar keeps growing, itches or hurts, see a dermatologist — keloids often need clinic treatment
4. Is Noscarna safe for pregnancy? Who should not use it
No — the Korean label lists pregnancy as a contraindication. This is the question many online sellers skip, so it’s worth saying clearly.
- You are pregnant
- You take aspirin or blood thinners (warfarin and other coumarins, dipyridamole, dextran, streptokinase) — the label says not to use them together
- You are allergic to heparin, have had heparin-induced low platelets (HIT), a bleeding tendency or low platelets
- The skin is open, unhealed, infected, or it’s a mucous membrane or around the eyes
- The baby is under 6 months old
- Breastfeeding: ask a doctor or pharmacist before using it
- Children under 2, or large areas in children 2–12: follow a doctor’s advice; use under adult supervision
- If you get an allergic reaction, stop and ask a doctor or pharmacist
5. Noscarna vs Dermatix, Acnon and Contractubex
These four sit near each other in Korean pharmacies and get mixed up all the time.
| Noscarna Gel | Dermatix Ultra | |
|---|---|---|
| What it is | OTC medicine (heparin, allantoin, dexpanthenol) | Silicone scar gel, no drug ingredient |
| How often | Several times a day, light massage | Twice a day, very thin layer |
| Pregnancy | Contraindicated on the Korean label | No drug ingredient — ask your doctor |
| Price here | 20 g ₩20,000 | 7 g ₩25,000 · 15 g ₩45,000 |
- Noscarna vs Dermatix: for a fresh surgical scar, silicone gel has the strongest evidence — international scar guidelines name silicone gel or sheeting as a first-line option for preventing raised scars. Noscarna suits people who prefer a medicated gel, and its overnight method helps on raised scars. If you are pregnant or on blood thinners, choose silicone.
- Noscarna vs Acnon: different jobs. Acnon Cream (ibuprofen piconol + isopropylmethylphenol) is for active pimples. Noscarna is for the scar left after the pimple has healed.
- Noscarna vs Noscardin: same brand family, easy to confuse. Noscardin Gel contains fusidic acid (an antibiotic) for infected spots and wounds — not for scars.
- Noscarna vs Contractubex: both are medicated scar gels with heparin and allantoin; Contractubex adds onion extract. Contractubex is also not for pregnancy.
6. Noscarna with moisturizer, retinol or azelaic acid
The label doesn’t cover skincare routines, so this is my practical advice from the counter:
Retinol and azelaic acid: nothing on the label says they can’t be used alongside Noscarna. But both can sting or irritate, and scar skin is often more sensitive. Don’t stack them on the same spot at the same time — for example, Noscarna in the morning and retinol at night — and stop if the scar turns red or burns.
7. Where to buy Noscarna in Korea
Noscarna is sold over the counter in almost every Korean pharmacy — no prescription needed. It comes in 10 g and 20 g tubes and is stored at room temperature, so it’s easy to take home. Prices vary by pharmacy; at Byeolha Pharmacy the 20 g tube is ₩20,000.
If you are in Seoul for surgery or a laser treatment, buy enough for two or three months of daily use. Ask the pharmacist to check the pregnancy and blood-thinner points with you before you pay.
8. Noscarna FAQ
About the author
Lee Jeong-hoon is a licensed pharmacist (15 years, Korean license no. 61641). He worked in pharmaceutical R&D and regulatory affairs at a multinational drug company before opening Byeolha Pharmacy in Gangnam, which he has run for seven years.
He writes these guides by reading the official Korean drug labels himself, so visitors get the same information a Korean pharmacist works from.
- Ministry of Food and Drug Safety (MFDS), Korea — Noscarna Gel approval and label, item 201301732 (checked Oct 2026)
- Dong-A Pharm — Noscarna Gel product page (English); Noscardin Gel Q&A
- MFDS — Acnon Cream (item 201901721) and Contractubex Gel (item 200109572) approvals
- Dermatix® Asia — Dermatix Ultra frequently asked questions
- Gold MH, et al. Updated international clinical recommendations on scar management. Dermatologic Surgery, 2014
- Venous thromboembolism: heparins are of porcine origin. BMJ (letter)
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