Is Laser and Light Therapy Effective or Safe in Melasma?


Melasma is a hyperpigmentation problem that is especially common in women and progresses with brown spots on the face. It is associated with many factors such as exposure to sunlight, hormonal changes and genetic predisposition. Although topical bleaching agents are usually the first choice of treatment, these methods may be insufficient in some patients and laser and light treatments come to the fore. So, does laser really work? How permanent is it? What are the side effects? In this article, we will seek answers to all these questions based on scientific data.

What is Melasma? Who Sees It?
Melasma is characterized by brown spots that appear mostly on areas exposed to the sun such as the forehead, cheeks, upper lip and nose. Although it is more common in women with dark skin, it can be seen in all skin types and in men. Especially pregnancy, birth control pills, thyroid diseases, cosmetic products and excessive exposure to UV rays play an important role in the development of melasma.

Are Topical Treatments Always Sufficient?
The first step in melasma treatment is effective sun protection and topical lightening agents. Topical products such as hydroquinone, azelaic acid, kojic acid and tretinoin can be effective by reducing melanin production. In particular, the combination of hydroquinone + retinoid + corticosteroid can provide up to 77% improvement. However, some patients may not respond to these treatments sufficiently or may experience relapses. This is where laser and light treatments come into play.

How Effective Are Lasers in Melasma Treatment?

1. Q-Switched Nd:YAG Laser (Laser Toning)
Q-switched lasers aim to break down melanin particles by repeated shots with low energy and large spots. This technique is called “laser toning”. While some studies have reported up to 60% improvement, some patients have observed worsening and relapse. Therefore, the effect of laser treatment alone may be variable.

???? Scientific note: In a study conducted on 50 patients, a 61.3% decrease in MASI (Melasma Area and Severity Index) was reported after 9 weeks of treatment, but a 64% recurrence rate was observed at 3-month follow-up.

2. Laser + Topical Combinations
In cases where laser treatment alone is not sufficient, a combination with topical agents is recommended. For example; In treatments continued with hydroquinone, kojic acid or vitamin C-containing creams after laser, effectiveness increases and the recurrence rate decreases.

New Approaches: Dual Toning and Fractional Lasers
Dual toning developed by Korean researchers includes the use of long-pulsed Nd:YAG lasers in addition to classical laser toning. In this method, both effectiveness increases and side effects decrease. It has been shown that complications such as mottled hypopigmentation are significantly reduced in patients who receive dual toning.

On the other hand, fractional laser systems (e.g. 1927 nm thulium fiber laser) are considered safe because they work more focused on epidermal pigmentation. An average of 34% improvement was achieved in MASI scores at a 6-month follow-up.

IPL (Intense Pulsed Light) Treatment and Melasma
In recent years, IPL (Intense Pulsed Light) systems have also been talked about more in the treatment of melasma. IPL targets both melanin and vascular components. Successful results can be achieved especially when applied with topical agents.

However, the high heat production of IPL treatment may increase the risk of postinflammatory hyperpigmentation in dark skin types. Therefore, systems with a low heat profile such as fractional IPL may be preferred.

What are the Risks of Laser Treatments?
Unfortunately, laser and light treatments are not always innocent in melasma. In particular, the following complications may be seen:

Postinflammatory hyperpigmentation (PIH)

Rebound pigmentation

Mottled hypopigmentation

Erythema, edema, burning sensation

Therefore, the treatment process must be planned and monitored by an experienced dermatologist.

Is the Risk of Recurrence Real?
Yes. Many studies have shown that recurrence rates are high after laser or IPL applications. However, maintenance topical treatments and sun protection habits after laser can reduce this risk.

Conclusion: When is Laser Treatment Appropriate for Melasma?
Scientific evidence shows that laser and light treatments should not be considered as the first step, but in cases resistant to topical treatments. It should be started with sun protection and lightening creams, and then carefully selected laser systems and personalized combinations should be planned.

If your melasma spots are stubborn, you can create a treatment plan specific to your skin type and the structure of the spot by consulting a dermatologist without despair. Remember, with the right timing and the right technology, it is possible to say goodbye to your stains.