Melasma Laser: From the Principles to Post-Care, What You Need to Know

Melasma is pigmentation that appears as brown or grayish-brown patches on the face, particularly on the cheeks, forehead, and philtrum area. Once it forms, it tends not to fade easily, making it a long-standing skin concern for many.

Depending on the depth at which the pigment sits, melasma is classified into epidermal (brown), dermal (blue-gray), and mixed (grayish-brown) types, with the mixed type reported as the most common. Since the approach can vary depending on depth and type, it's recommended to have a specialist confirm the diagnosis rather than self-diagnosing.

Why Does Melasma Occur — Causes and Aggravating Factors

Melasma is known to mainly occur in women of childbearing age, but it's reported that men account for about 10% of all cases as well.

Hormonal changes such as pregnancy, oral contraceptive use, and hormone therapy are cited as major triggers, while genetic factors, UV exposure, certain medications, and stress are also mentioned as factors that can worsen melasma. For this reason, daily sun protection habits are often emphasized alongside any procedure.

How Melasma Laser Works — Selectively Targeting Melanin

Melasma laser utilizes the principle of specific light wavelengths being selectively absorbed by melanin pigment. Using this principle, the laser is designed to concentrate energy on areas where pigment is concentrated while relatively minimizing irritation to surrounding normal tissue.

Melasma is known to be more sensitive to stimulation compared to other pigmented lesions, so rather than a single strong treatment, a method of applying lower intensity across multiple sessions to gradually lighten the pigment is commonly used. The Nd:YAG laser is one representative option introduced as a method that selectively targets pigment cells at low energy to reduce skin irritation, while IPL and fractional lasers are reported to target melanin while also inducing collagen remodeling in an attempt to improve overall skin tone.

However, it's also noted that laser treatment for pigmented lesions can result in individual variation in irritation response or recurrence of pigmentation, making a cautious approach and the judgment of a specialist important.

Combining with Topical Treatments — Helpful Reference Information

In addition to laser treatment, topical agents such as hydroquinone, retinoids, and azelaic acid are often used together for melasma management. Hydroquinone is known to work by inhibiting tyrosinase, an enzyme involved in the melanin production process, and international reviews have evaluated combination therapies using such ingredients as having a relatively high level of evidence.

As such, melasma is often approached with a combination of topical treatments and lifestyle management rather than laser treatment alone, and since the appropriate combination varies depending on individual pigment depth and skin condition, it should be determined through consultation with a specialist.

Procedure Process and Information Summary

The procedure generally begins with a consultation and skin condition diagnosis, followed by cleansing, application of a topical numbing cream if needed, laser treatment adjusted to the area and settings, and finishes with soothing care.

The procedure typically takes about 10 to 30 minutes depending on the area, and pain levels range from mild to moderate with individual variation, so topical numbing may be used if needed. There is generally little to no separate recovery period, though redness, if it occurs, usually subsides within a few days. Some effects may be felt immediately after the procedure, but results are generally known to appear gradually over multiple sessions, and how long they last can vary depending on pigment condition and sun protection habits.

Melasma Laser vs. Melasma Injection vs. Pigment Laser

There are several types of melasma-related procedures, which can be confusing. Melasma laser refers to repeated treatment with a low-irritation laser at low intensity, melasma injection refers to directly delivering active ingredients, and pigment laser is used to address pigmentation overall, including melasma and other blemishes.

All three share the common goal of managing pigmentation, but they differ in approach and level of stimulation, so the suitable procedure can vary depending on individual skin condition and pigment depth. Which method is right for you should be confirmed through a medical consultation.

Why Post-Procedure Recovery Care Matters

Melasma laser is generally known to have a short downtime, but since the process targets pigment, the skin barrier may become temporarily sensitive and slight redness may occur. Managing sun protection alongside barrier-stabilizing care during this period can help with overall skin condition management afterward.

In particular, the period following pigment-related procedures is one where skin may become more sensitive to stimulation, so a home care routine that soothes the skin with mild ingredients and provides deep hydration is often recommended alongside.

Home Care Plays a Key Role in Post-Procedure Recovery

Right after a pigment-targeting procedure like melasma laser, skin tends to become temporarily sensitive and prone to dryness. During this period, care that reduces irritation and soothes the barrier can be helpful. The Abzu cream is designed as a two-step regimen: STEP1 Ultra Cera-Rich is used right after the procedure to help calm redness and support barrier care, followed by STEP2 Hydro Re-Boosting during the recovery period to replenish deep hydration. That said, the cream is only a supplementary home care measure and does not guarantee the effect of the procedure itself or the speed of recovery, so it's recommended to consult with the treating medical institution for precise care guidance.

Medically reviewed by 아비쥬의원 의료진. (September 10, 2026)