Cremas cicatrizantes: cuál funciona para cada tipo de cicatriz

Scar creams: which one for each type of scar

"You have a caesarean scar. Or a shoulder surgery scar. Or that bike fall that left its mark. Whatever it is, you want it to be as discreet as possible. But between creams, patches, oils and home remedies, what actually works? I will walk you through what the science says."

CLINICAL NOTE

Silicone is the only topical treatment that international guidelines list as first line for hypertrophic scars and keloids. What determines the result is not the brand: it is how many hours a day you keep it on.

Mepiform or Trofolastin? If the scar is in an area that moves a lot, my choice is Mepiform 4x30 cm.
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Which scar cream do I need for my scar?

There is no single scar cream that works for everything: the right product depends on the stage of healing your skin is in. For an open wound you use a healing cream that stimulates new tissue (centella asiatica); on freshly closed, irritated skin you use a barrier repair cream (panthenol, madecassoside); and for an already formed scar that is raised or red, the standard is silicone in a patch or gel, not a cream.

Quick summary

  • Open wound: healing cream with centella asiatica (blastoestimulina-type products).
  • Closed but irritated skin: repair cream with panthenol or copper-zinc sulphate.
  • New scar (0–6 months): silicone — it is the only first-line option with solid evidence.
  • Hypertrophic or keloid scar: silicone patch, pressure and patience; medical review.
  • Old scar (>2 years): limited room for improvement with topical products.
  • Sun protection: SPF 50 on the scar for 12 months. This is not optional.

I start here because this is the mistake I see most often: people applying a barrier repair cream to a three‑month‑old raised scar expecting it to flatten. That product is doing its job — hydrating — but it is not what that scar needed.

How skin heals: the three phases that decide what to use

  • Inflammatory phase (days 1–5): your body cleans the area. Here you focus on proper hygiene and, if the wound is open, a healing cream.
  • Proliferative phase (days 5–21): new tissue forms and the wound closes. This is where products with centella asiatica do their work.
  • Remodelling phase (month 1 to month 24): collagen reorganises. This is the only phase in which you can change the final appearance of the scar, and this is where silicone comes in.

This timeline explains the key message of this article: the time to act on a scar is within the first 6 months after closure, not two years later when you finally decide to do something.

Types of scars and what each one needs

  • Normotrophic scar: flat and skin‑coloured. It only needs moisturising and sun protection.
  • Hypertrophic: raised and red, but staying within the original wound edges. Silicone used consistently.
  • Keloid: grows beyond the original border, often with a family tendency. Silicone plus medical assessment: it may need intralesional corticosteroid.
  • Atróphic: sunken (typical of acne or chickenpox). Topicals add little; this is dermatology and aesthetic medicine territory.
  • Recent surgical scar: silicone from the moment stitches are removed and skin is closed.
  • Hyperpigmented: darker than surrounding skin. Here high‑factor SPF is decisive; lightening agents come afterwards.

Silicone patches: why they are first line

Silicone is the only topical treatment for scars that international guidelines list as first line, both for prevention and treatment of hypertrophic scars and keloids. Its mechanism is not to "penetrate": it works by occlusion and hydration of the stratum corneum, which modulates fibroblast activity and reduces excessive collagen production.

What you can realistically expect: the scar flattens, loses that intense red colour and becomes more flexible. What you cannot expect: for it to disappear. A scar is permanent tissue; the goal is for it to be as discreet as possible.

Mepiform or Trofolastin: which should I choose?

This is the question I get most often on this topic, so let us go straight to it:

  • Mepiform: self‑adhesive silicone dressing, very thin and flexible, adapts well to areas that move and can be cut to size. It lasts several days with washes in between. My choice for scars over joints, abdomen or areas that rub against clothing.
  • Trofolastin reductor: polyurethane dressing with a silicone layer, slightly stiffer with a good pressure effect. Very useful on straight, flat scars, typically surgical ones. It usually works out cheaper per piece.
  • The uncomfortable truth: both work and current evidence does not clearly favour one over the other. What really drives results is how many hours per day you wear it, not the brand name.
  • If the area is hard to cover (face, neck, fingers): a silicone gel is better than a patch because it dries into an invisible film.

For gel, Strata Triz gel 20 g is the one I dispense most often: you apply a very thin layer, it dries in minutes and you can put make‑up over it. The 10 g size works well for small scars or as a trial.

If your scar is on the breast after surgery, Trofolastin mamario comes pre‑shaped for that area, which saves quite a bit of cutting and adjusting.

How do you use silicone patches correctly?

1

Wait until fully closed

The skin must be closed, with no scab or stitches. Never on an open wound.

2

Clean, dry skin with no creams

No oils or moisturisers underneath: they stop it sticking properly and cancel out the occlusive effect.

3

Cut with a margin

It should cover the whole scar plus a few millimetres of healthy skin around it.

4

12–24 hours per day

This point decides your result. Less than 12 hours daily gives much poorer outcomes.

5

Wash the patch daily

Mild soap and water, air dry and reuse. Each dressing lasts between 7 and 14 days.

6

Keep going for 3 to 6 months

A minimum of 8–12 weeks before judging results; up to 6 months for hypertrophic scars.

A small detail that changes results and costs nothing: apply SPF 50 on the scar during the first year, whenever you are not wearing the patch. UV radiation on remodelling tissue is what leaves those dark, permanent marks over time.

Quick guide according to your situation

  • Open wound, not yet closed: healing cream with centella asiatica — I explain this in more detail in my guide on blastoestimulina‑type products and alternatives.
  • Freshly closed surgical scar: Trofolastin or Mepiform, start now and continue for 3–6 months.
  • Scar on face, neck or fingers: Strata Triz gel.
  • Scar starting to raise and redden: start silicone now; do not wait to see if it settles by itself.
  • Keloid with previous history: silicone plus an appointment with dermatology.
  • Scar older than two years: adjust expectations; discuss options in clinic if it really bothers you.

Pharmacist recommendations

If you remember just one idea: with scars timing matters more than product choice. Silicone in the first six months, worn many hours per day, plus high‑factor sun protection for a year. With that you are already doing about 80% of what can be done at home.

I also tell everyone this: if it is a scar that worries you because of where it is or because you have had a keloid before, do not manage it entirely on your own. Write to us or come into the pharmacy so we can look at it together — sometimes the right answer is to refer you on, and I am here for that as well.

A hug from Cantabria,
Jorge Peláez
Pharmacist no. 1383

Mepiform, Trofolastin or gel: which for each type of scar

ProductFormatBest forDaily use
MepiformSelf-adhesive silicone dressingAreas with movement, can be cut to size12-24 h
Trofolastin reductorPolyurethane + silicone dressingStraight surgical scar12-24 h
Strata Triz gel 20 gSilicone gelFace, neck, fingers2 times a day
Mepiform 10x18Large dressingExtensive scars12-24 h
Strata Triz gel 10 gSilicone gelSmall scars or trial use2 times a day

If you are unsure what to choose, this table sets out the objective criteria you need to consider.

Frequently asked questions

Can a scar cream be used on open wounds?

No, and it is one of the most frequent mistakes I see in the pharmacy. Scar creams and silicone patches are designed to act on wounds that are already closed, not on live tissue. Applying silicone or any reducer to an open wound can cause infection or interfere with natural healing. First let the wound close, then you treat the scar.

What ingredients should I look for in effective scar creams?

When we talk about scar creams, what you should look for depends on your goal. To reduce a hypertrophic scar, silicone (dimethicone or polydimethylsiloxane) is the active ingredient with the strongest evidence. To hydrate and soften mature scars, look for allantoin, centella asiatica or rosehip oil. Ingredients such as onion (Allium cepa extract) appear in some gels — like Contractubex — although their evidence is more limited than that of silicone.

Do acne scars respond in the same way to silicone patches?

No. Acne scars are usually atrophic, meaning they are indented because tissue has been lost. Silicone patches act on raised or hypertrophic scars, not on indented ones. For acne scars what works is fractional laser, microneedling or dermal fillers, always under dermatological supervision. If you are unsure about your type of scar, ask me or see a dermatologist before buying anything.

How many hours a day do you need to wear a silicone patch for it to be effective?

Clinical guidelines recommend a minimum of 12 hours a day, although ideally you keep it on for 23–24 hours, removing it only to clean the area. The more hours, the better the results. If you wear the patch for less than 12 hours, occlusion is not sufficient to modulate collagen production and the treatment loses effectiveness. Consistency is what really makes the difference at 3–6 months.

Scientific references

  • [acceder] [acceder] — PMID: 12142678
  • [acceder] [acceder] — PMID: 24944107
  • [acceder] [acceder] — PMID: 25068545
  • [acceder] [acceder] — PMID: 25141117
  • Gold MH, McGuire M, Mustoe TA, et al. (2014). Updated international clinical recommendations on scar management: part 2—algorithms for scar prevention and treatment. Dermatologic Surgery, 40(8), 825–831. [acceder] — PMID: 25068546
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