Pigmentation Removal Singapore:
Which Laser Removes Which Pigment

Pigmentation removal Singapore: which laser removes which pigment

A laser works by being absorbed by a target. For brown pigment the target is melanin, but melanin at the surface, melanin in the dermis, melanin being produced by inflamed skin and a thick plaque of keratin that happens to be brown are four different problems. The table sets out which instrument is used for which at Dr Sin Yong's practice.

Two protocols cover most of the pigment work. R2 Glow is directed at the inflammation that keeps producing pigment; T2 Frax Radiance is directed at the deposit, with a thermal pass for texture. Run together they are R2T2, and which one leads depends on whether the problem is a spot or a driver.

Laser pigmentation removal Singapore in darker skin: the PIH risk by skin tone

Most patients in Singapore are Fitzpatrick III to V. That matters more for pigmentation removal than for almost any other laser treatment, because the same melanin that makes a sun spot visible is also spread through the surrounding epidermis, where it absorbs stray energy. Heat that spreads into that skin causes inflammation, and inflammation in these skin types produces more pigment. The darkening that follows an over-treated laser visit is post-inflammatory hyperpigmentation, and it is the main cosmetic risk of pigmentation removal in this region.

Picosecond delivery helps because the pulse is too short for the pigment particle to pass much heat to its surroundings, so the particle is shattered by a pressure effect rather than cooked. It is a difference in how energy is delivered, not a promise about what happens to a particular face, and the wavelength and energy still have to be chosen for the skin. The pico laser in Asian skin guide and the PIH condition page cover this in depth. Darkening that does occur is managed with the same gentle toning and topical approach used for other PIH, and sun protection decides how much of any result is kept.

“A laser removes pigment that has already been made. It does nothing about pigment that is still being made, and in melasma it can make more. So I name the pigment before I name the laser.”

Dr Sin YongOn Laser pigmentation removal

What laser pigmentation removal does not remove

Three situations are declined or redirected at assessment, because a laser would do harm or nothing.

Melasma

Melasma looks like pigment and behaves like a condition. It has hormonal, vascular and ultraviolet drivers, sits at more than one depth, and is heat-sensitive: an aggressive pigment laser triggers rebound, which is the familiar story of pigment that got worse after treatment. At Dr Sin Yong's practice melasma starts with sun protection and medical treatment, and if a laser is used it begins with R2 Glow alone, directed at inflammation rather than at the pigment. The melasma treatment page sets out that plan, and the pigmentation worse after laser guide explains what rebound looks like.

Pigment that is still being produced

A post-acne mark under active acne, a dark patch under ongoing friction or eczema, and darkening from a medicine that is still being taken will return after any laser. The driver is addressed first; the pigment is treated once it has stopped being made.

Lesions that need a diagnosis

A mole with atypical features, a dark lesion that is changing, bleeding or irregular, and a seborrhoeic keratosis that does not look typical are examined, and where indicated excised for histology or referred, rather than ablated. Fragmenting a lesion with a laser destroys the information a doctor needs. The brown patches on the face guide helps sort which brown is which before a visit.

What causes facial pigmentation

Brown marks on the face come from melanin, the pigment made by melanocytes, and several different triggers drive it. Knowing the trigger matters, because it decides whether laser is useful and whether the pigment is likely to return.

• Sun exposure. Ultraviolet light, and visible light in darker skin, stimulates melanin production. Cumulative exposure produces sun spots (solar lentigines) and darkens freckles.
• Inflammation. Acne, eczema, insect bites, burns or an over-aggressive treatment can leave post-inflammatory hyperpigmentation once the inflammation settles.
• Hormones. Pregnancy, hormonal contraception and other hormonal change are linked with melasma, which also has vascular and heat-related drivers.
• Genetics and skin type. Freckles, Hori’s naevus and a tendency to darken after injury run in families and are more common in Asian skin.
• Medicines. Some medicines can cause or deepen pigmentation, so the doctor asks for a full list of medicines and supplements.

Some brown marks are not pigmentation at all. Seborrhoeic keratoses and pigmented moles can look similar and are examined first, with a dermatoscope where needed. The types are compared on hyperpigmentation types on the face.

Why pigment can return after removal, and how maintenance is planned

Laser fragments pigment that is already in the skin. It does not change the reasons the skin made it, which is why pigmentation can return after treatment, and why the answer to “will it come back?” depends on the type.

• Sun spots and freckles: treated marks may stay lighter, but new ones can form with further sun exposure, and Singapore’s sun is strong all year.
• Post-inflammatory marks: fade as the inflammation that caused them is controlled; new acne or irritation can leave new marks.
• Melasma: a chronic tendency that is controlled rather than cleared. Heat, sun and hormonal change can bring it back.
• Hori’s naevus: deep dermal pigment that responds slowly and is reviewed over a longer interval.

Maintenance is therefore planned as part of removal: daily broad-spectrum sunscreen, with visible-light protection where melasma is present; a topical plan for skin that darkens easily; and review appointments at which Dr Sin Yong decides whether anything further is needed, rather than a fixed package.

Creams and medicines used alongside laser

Laser is rarely the whole plan for pigmentation. Topical and oral treatments are used to slow new pigment production, to prepare the skin, and to lower the risk of darkening after laser, which is higher in Asian skin.

• Sunscreen: broad-spectrum and used daily; tinted formulas add protection from visible light, which matters for melasma.
• Hydroquinone: a prescription lightening agent used in supervised courses with breaks, because long continuous use carries risks.
• Azelaic acid, cysteamine and other non-hydroquinone agents: alternatives or maintenance options for sensitive or easily irritated skin.
• Retinoids: speed the turnover of pigmented surface cells; they are paused around some laser treatments.
• Oral tranexamic acid: sometimes used for melasma after screening for clotting risk, including any history of clots, smoking, hormonal contraception and pregnancy plans. It is not suitable for everyone.

Which of these suits you is decided after the pigment has been diagnosed. Tell the doctor about every medicine and supplement you take, any allergies, pregnancy or breastfeeding, and recent treatments. Topical options are compared on pigmentation treatment in Singapore.

What happens at a pigmentation removal visit

1. History. When the pigment appeared, whether it darkens with sun, pregnancy or hormonal treatment, which medicines and supplements are taken, and what has been tried, including any previous laser elsewhere.
2. Examination. The pigment is identified by its pattern, depth and distribution, with magnification where the lesion needs it. Sun spots, freckles, post-inflammatory marks, melasma, Hori's naevus and keratoses are separated at this step, because the rest of the plan depends on it.
3. Skin type and risk. Fitzpatrick type, any history of darkening after procedures, and current sun exposure are recorded, and these set the wavelength and energy.
4. The plan, including no laser. Where the pigment is melasma or is still being produced, the plan may begin with sun protection and topical treatment and no laser at all. Where a laser is suitable, the instrument, the staging and the expected recovery are explained before anything is agreed.
5. Treatment. Dr Sin Yong performs every laser treatment personally after this assessment. Eye protection is worn, a test patch is done where appropriate; the treated spots darken and the surrounding skin is left intact.
6. Review. Response is reviewed before any repeat is planned, and the interval is set individually rather than in advance.

Enquiries on WhatsApp are answered in English and Chinese.

Aftercare after laser pigmentation removal

Aftercare is simple and it decides how much of the result is kept.

• Treated spots darken and then lift away on their own; they are not picked or scrubbed.
• A bland moisturiser keeps the surface comfortable, and active skincare such as retinoids and acids is paused until the skin has settled, as advised at the visit.
• Broad-spectrum sunscreen is applied daily and reapplied outdoors, because new pigment forms with sun and the treated skin is more reactive while it heals. The sunscreen guide covers what to use in this climate.
• Heat is avoided while the skin settles where melasma is part of the picture: saunas, hot yoga and prolonged outdoor exercise can provoke it.
• Any darkening that appears after the spots have lifted, or redness that persists, is reported so that it can be managed early.

Detailed instructions by treatment are on the pico laser aftercare page.

Why this page has no before-and-after photographs

Many clinic websites show before-and-after photographs for pigmentation removal. This page does not, because Singapore’s rules on healthcare advertising do not allow licensed clinics to publish before-and-after or after-only images, or patient testimonials, to promote treatment. The images on this page are illustrative and are not patients.

A photograph of someone else’s skin also says little about yours. The type of pigment, its depth and your skin type decide how a laser behaves, and the same settings can lighten one kind of brown and darken another.

What replaces the photographs is an examination. At consultation Dr Sin Yong explains what the assessment shows, what the treatment can and cannot change for you, and records the plan in writing. Your own skin is photographed under standard light for your medical record, so that it can be compared at review.

Pigmentation treatment by type: the full guide

This page covers laser removal: which instrument is used for which pigment, and the risk in darker skin. For the condition-by-condition background, including creams, oral treatment and how each type of brown mark is told apart, the pigmentation treatment Singapore guide is the place to start. Condition pages cover sun spots and freckles, Hori's naevus and seborrhoeic keratosis, and the pigmentation hub lists every guide.