Which Methods Are More Effective for Treating Acne Scars?


Acne scars can leave deep scars not only on the skin but also on an individual's mood. Permanent scars, especially those that develop after severe acne, can affect self-confidence and lead to anxiety in social interactions. So, how are acne scars treated, and which methods are most effective? We examine this question in detail, based on current scientific data.

How Effective Are Laser and Light Technologies in Treating Acne Scars?
In recent years, laser and light-based treatments have become among the most frequently preferred methods for reducing the appearance of acne scars. These methods fall into two main groups:

Ablative lasers: Lasers such as CO₂ and Er:YAG vaporize the upper layer of the skin, triggering the formation of new tissue.

Non-ablative lasers: Systems such as Nd:YAG and diode lasers promote collagen production without stripping the skin.

Fractional CO₂ laser applications, in particular, have shown lasting and significant improvements in atrophic acne scars in clinical studies. However, it's important to remember that laser treatments can have side effects such as temporary redness, infection, or pigment changes.

What is Microneedling Treatment and What Does It Do?
Microneedling is a procedure that stimulates collagen and elastin production by creating microchannels on the skin's surface with fine needles. This procedure helps:

Rejuvenate skin tissue,

Tighten pores,

Improve acne scars.

However, because many of the effects are based on patient evaluations, results can vary from person to person. However, the effectiveness of microneedling is significantly enhanced when combined with laser or methods such as PRP.

Which Acne Scars Are Suitable for Chemical Peels?
Chemical peels allow for the formation of new skin tissue by controlled exfoliation of the skin's surface. The most common peeling agents are:

Glycolic acid

Salicylic acid

Trichloroacetic acid (TCA)

Jessner solution

Phenol

This method, which is particularly effective for mild to moderate scars, may not be sufficient on its own for deeper scars. In such cases, it is recommended to combine it with other procedures.

How Do Dermal Fillers Fill Acne Scars?
Dermal fillers are injected under the skin to level sunken, atrophic scars. The most commonly used fillers are:

Hyaluronic acid

Calcium hydroxyapatite (CaHA)

Poly-L-lactic acid (PLL)

Autologous fat injections

Fillers generally provide a temporary solution and may require repeated applications to maintain their effectiveness. However, they provide rapid and satisfactory results for rounded and shallow scars.

Does PRP (Platelet-Rich Plasma) Treatment Really Work?
PRP is prepared with a rich platelet content derived from the patient's own blood. PRP:

Increases collagen production,

Strengthens skin tissue,

Its effectiveness increases when combined with other treatments (laser, microneedling).

Because PRP is a non-invasive and well-tolerated method, it has become a frequently used adjunctive treatment by dermatologists in recent years.

What Scars Is Subcision Suitable For?
Subcision aims to lift sunken scars by cutting the fibrous bands beneath the skin. This technique:

It is particularly effective for ice pick and rolling scars,

It can be performed with cannulas, needles, or blunt-tipped blades,

It may cause side effects such as bruising and pigment changes.

The treatment is often supplemented with PRP or filler applications, increasing the success rate.

Could Radiofrequency Microneedling (RFM) Become the New Standard?
RFM combines microneedling with radiofrequency energy. Advantages:

Targets deep tissue without exfoliating the skin surface.

It is especially safe for individuals with dark skin.

It provides effective results on moderate to severe acne scars.

With its skin regeneration and skin-tightening properties, RFM stands out in both scar treatment and anti-aging treatments.

When are cryotherapy, 5-FU, and intralesional treatments used?
Cryotherapy works by freezing tissue, particularly in hypertrophic scars.

5-Fluorouracil (5-FU) is used in the treatment of keloids by suppressing fibroblast proliferation.

Intralesional corticosteroid injections help flatten raised scars.

These methods are generally considered adjunctive treatments rather than standalone treatments.

Are Dermabrasion and Punch Techniques Suitable for Deep Scars?
Dermabrasion provides reconstruction by mechanically exfoliating the upper layer of the skin.

Techniques such as punch excision or punch elevation are particularly effective for deep, ice pick-like scars.

The recovery period after these procedures can be long, and they should be performed by experienced dermatologists for optimal results.

Are Stem Cell and Mesotherapy the Methods of the Future?
Stem cell treatments offer promise for atrophic scars, accelerating skin regeneration.

Mesotherapy involves subcutaneous injection of vitamins and active ingredients to support tissue repair.

Both methods are still in development, but studies have shown that they can be used in combination treatments.