Hello. I'm Dr. Dongmin Lee of Ruby Dermatology Clinic, where we restore your skin's natural, clear and healthy glow through delicate medical care.

"I've had laser toning more than 10 times, but my melasma has actually gotten darker and the edges have become messy."

This is one of the things I hear most often from patients who come to the clinic after pigment treatments, troubled by skin irritation and rebound post-inflammatory hyperpigmentation (PIH).

Pigmentation conditions such as melasma and dark spots are not resolved by blasting them with a strong laser as if breaking down a hard wall. That is why you need a Pico Toning approach that selectively and finely shatters only the melanin pigment without irritating the skin barrier and epidermis.

💡 [3-Line Key Summary]

Why melasma gets darker: Excessive laser heat or strong friction stimulates melanocytes (pigment-producing cells), causing them to release even more melanin — rebound post-inflammatory hyperpigmentation (PIH).

The core principle of Pico Toning: With an extremely short pulse duration measured in picoseconds (one trillionth of a second), thermal damage is minimized, and vibrational energy breaks pigment into very fine particles that are cleared quickly.

Combined regeneration scheme: Combining LDM ultrasound, Rejuran/skin boosters and barrier-repair care to stabilize pigment cells can restore a clear skin tone without side effects.

A. The Anatomical Reason Melasma Darkens After Conventional Toning

Melasma is not simply surface pigment; it is a condition in which damage to the epidermal–dermal basement membrane, vascular proliferation in the dermis, and chronic inflammation are intertwined.

Limitations of conventional nano-second toning:

Conventional laser toning delivers thermal energy in nanosecond (one billionth of a second) pulses. When laser power is too strong or repeated heat accumulates, melanocytes perceive it as an 'attack' and respond with a rebound burst of melanin production.

Basement membrane damage and pigment incontinence:

When irritation weakens the basement membrane that separates the epidermis from the dermis, epidermal pigment drops down into the dermis, worsening into deeper, refractory melasma that is much harder to treat.

B. Is It Right for Me? Who Is Pico Toning Recommended For

1) Strongly recommended if you have these concerns.

You have a combination of melasma with unclear, blotchy borders, dark spots, and nevus of Ota-like lesions (ABNOM)

You've experienced side effects after previous toning, such as thinner or redder skin and darker pigment

You want to improve pores, fine lines and skin texture together with pigment treatment

C. Technical Advantages of Pico Toning in Treating Pigment

Precise fragmentation based on the photomechanical (photoacoustic) effect:

Unlike conventional lasers that rely mainly on photothermal effects, picosecond-scale instantaneous shock waves pulverize melanin into fine powder. The smaller the fragments, the faster they are cleared through the body's lymphatic circulation.

Minimal thermal damage to surrounding normal tissue:

Because heat transfer time is extremely short, damage to surrounding epidermal and dermal cells and skin irritation are minimized, dramatically reducing the risk of rebound hyperpigmentation.

Dermal regeneration with MLA/DOE lenses (Pico MLA):

A specialized lens induces microscopic laser-induced optical breakdown (LIOB) in the dermis, promoting the skin's own collagen and elastin regeneration without epidermal damage.

D. Nano-second (Conventional) Toning vs. Pico Toning

E. Recommended Treatment Interval and Recovery Time

Treatment interval: For melasma and refractory pigmentation, we recommend steady treatment at 1–2 week intervals for 10 or more sessions.

Downtime: Mild redness after the procedure subsides naturally within 1–2 hours, with little to no disruption to daily life.

F. 🔥 Combined Refresh Protocol for Refractory Pigmentation

Pico Toning + LDM Water-Drop Lifting:

After pico laser treatment, LDM ultrasound strengthens the skin barrier and creates a moist dermal environment, promoting pigment clearance and soothing irritation.

Pico Toning + Skin Boosters (Rejuran / Exosomes):

By fundamentally rebuilding the damaged basement membrane and dermal environment, this improves the underlying conditions that suppress excessive melanocyte activation.

G. Dr. Lee's Practical Know-How & Clinical Insights

Melasma treatment should not be an 'attack' that forcefully strips away pigment; it should be a 'soothing' process that calms overactive pigment cells and harmoniously cultivates the dermal environment.

Before treatment, I use precision skin analyzers such as Janus to carefully assess epidermal melasma, dermal pigment, and hidden vascular distribution. Depending on the depth and pattern of pigment, I apply a 'Custom Pico Dual Tuning technique' that adjusts wavelength and energy density in multiple stages. Rather than simply destroying pigment, we also strengthen the skin barrier, promising a clear skin tone without recurrence.

📌 [Wrap-Up] Pre- and Post-Treatment Precautions

Thorough sun protection: To prevent pigment recurrence, always apply sunscreen (SPF50+/PA+++) 30 minutes before going out and reapply every 2–3 hours.

Avoid friction on the skin: Do not rub your face hard when washing, and avoid deep cleansing and scrubs to minimize skin irritation.

Plenty of moisturizing care: Apply moisturizing and regenerating creams generously after treatment to support skin regeneration and pigment clearance.

👨‍⚕️ Author Bio

Dr. Dongmin LEE

Ruby Dermatology Clinic

A graduate of Korea University College of Medicine, Dr. Lee served as director of U&I Clinic and of Ruby Plastic Surgery, and is now director of Ruby Dermatology Clinic, devoted to restoring each patient's natural skin health and beautiful contours.

Korea University, College of Medicine (M.D.)

Member of Korean Society of Filler

Member of Korean Society of Laser, Dermatology and Hair

Member of Korean Society of Obesity and Aesthetic Medicine

Former Doctor, RUBY Plastic Surgery, U&I Clinic