Medical Dermatology

Pigmentation Treatment Singapore

Dr. Liew Hui Min

accredited consultant dermatologist

Pigmentation refers to the colouring of skin that occurs when melanin is produced in varying amounts. Changes in pigmentation can lead to patches of skin becoming darker (hyperpigmentation) or lighter (hypopigmentation) than surrounding areas. These variations may affect small sections or larger regions of the body, developing gradually or appearing suddenly depending on the underlying cause. These causes are best evaluated by a dermatologist.

Symptoms Causes Types Diagnosis Treatment Prevention FAQ

Symptoms of Pigmentation

Pigmentation changes present in various ways depending on the specific condition and individual factors. The following symptoms may indicate a pigmentation disorder.

Darker patches of skin

Areas become noticeably darker than the surrounding tissue. These patches may appear brown, grey, or black and can vary in size from small spots to large sections.
Lighter patches of skin

Areas lacking normal pigmentation appear lighter than the surrounding skin. These patches result from decreased melanin production and may be more noticeable in individuals with darker skin tones.
Uneven skin tone

The skin shows inconsistent colouration across different areas. This unevenness may present as mottled patterns or distinct borders between differently pigmented sections.
Sun-sensitive areas

Pigmentation becomes more pronounced after sun exposure. These areas may darken rapidly with minimal sun contact and remain darker for extended periods.
Age-related spots

Small, flat brown spots appear on sun-exposed areas like the face, hands, and arms. These spots develop gradually over time and increase in number with age.

Causes and Risk Factors

Several factors can affect melanin production, distribution, or the number of melanocytes in the skin. These factors contribute to pigmentation changes:

Sun exposure: Ultraviolet radiation stimulates melanin production as a protective mechanism. Prolonged exposure can cause melanin to be produced unevenly or in excess amounts.

Hormonal changes: Fluctuations in hormone levels can trigger melanin production. Pregnancy, menopause, oral contraceptives, and hormone replacement therapy may lead to pigmentation changes in susceptible individuals.

Inflammation: Skin damage from acne, eczema, or injuries can trigger post-inflammatory pigmentation. The healing process sometimes results in either excess melanin production or disruption of normal pigment distribution.

Genetics: Genetic factors influence melanin production and may determine susceptibility to conditions like melasma or vitiligo.

Medical conditions: Disorders affecting hormone levels or autoimmune function can alter pigmentation. Conditions such as Addison’s disease, hypothyroidism, or lupus may manifest with changes in skin colour.

Medications: Certain drugs can trigger pigmentation changes as a side effect. Antibiotics, chemotherapy drugs, and some antiseizure medications may affect melanin production.

Types of Pigmentation

Melasma

A condition characterised by brown or greyish-brown patches primarily on the face. Melasma commonly affects the cheeks, forehead, upper lip, and chin and tends to be symmetrical in appearance.

Post-inflammatory hyperpigmentation

Dark spots that develop after skin inflammation or injury. This occurs when inflammation triggers excess melanin production during healing and can affect any skin tone but is often more noticeable in darker skin.

Sun spots

Flat, brown spots that appear on areas frequently exposed to the sun. Sometimes called liver spots or age spots, these develop from cumulative sun exposure and are most common in older adults.

Freckles

Small, flat brown spots that typically appear on sun-exposed skin. Freckles are genetic in origin but become more pronounced with sun exposure and tend to fade in winter months.

Diagnostic Methods

Visual examination

This involves a thorough inspection of the affected areas under good lighting. This assessment evaluates the pattern, distribution, and characteristics of the pigmentation changes.
Wood’s lamp examination

A special ultraviolet light makes certain pigmentation disorders more visible. This non-invasive technique helps differentiate between various types of pigmentation abnormalities.
Dermoscopy

A handheld device provides magnified views of skin lesions. This technique allows for closer examination of pigmentation patterns and helps distinguish between benign and potentially concerning lesions.
Blood tests

Laboratory analysis checks for underlying medical conditions. Hormonal imbalances or autoimmune disorders that cause pigmentation changes can be detected through blood testing.

Treatment Options

Pigmentation disorders can be addressed through various approaches depending on the specific condition, severity, and individual factors. Treatment aims to restore normal skin appearance and prevent further changes.

Topical treatments

Creams or gels containing active ingredients applied directly to affected areas. These may include hydroquinone, retinoids, cysteamine, kojic acid, azelaic acid, or vitamin C, which inhibit melanin production or enhance cell turnover to fade dark spots.

Laser therapy

Targeted light energy breaks down excess melanin in the skin to improve pigmentation. One commonly used option is the Q-switched Nd:YAG laser, which delivers short, high-energy pulses that specifically target deeper pigmentation without damaging surrounding tissue. This laser is effective for concerns such as sun spots, freckles, post-inflammatory hyperpigmentation, and certain types of melasma. Multiple sessions may be required for optimal results.

Intense Pulsed Light (IPL)

Broad-spectrum light technology targets pigmentation in multiple skin layers. IPL can address various pigmentation concerns and often requires fewer sessions than other light-based treatments.

Prevention and Management

Maintaining good skin health practices helps prevent and manage pigmentation issues. Daily broad-spectrum sunscreen application is necessary, even on cloudy days. Supplementation with oral sunscreen that contains the tropical fern extract (Polypodium leucotomos) and glutathione commonly used for its antioxidant and photoprotective properties. It helps reduce UV-induced damage, such as sunburn and skin aging.

A gentle skincare routine prevents irritation that can trigger post-inflammatory pigmentation. Early intervention for existing concerns can prevent worsening. Regular skin checks allow for timely identification of changes, while proper hydration, nutrition, and stress management support overall skin health.

Frequently Asked Questions

Can pigmentation issues affect anyone regardless of skin tone?

Yes, pigmentation disorders can affect people of all skin tones. However, darker skin tones tend to be more prone to hyperpigmentation after inflammation, while hypopigmentation may be more noticeable on darker skin.

How long does it take to see results from pigmentation treatments?

Treatment results vary depending on the type of pigmentation, its depth in the skin, and the treatment method. It typically takes 3-6 months to see results with consistent treatment.

Will pigmentation return after treatment?

Pigmentation can recur without proper sun protection and management of underlying causes. Maintenance treatments and preventive measures, including sun protection, are often necessary for long-term results.

Dr Liew Hui Min

Dually Accredited Dermatologist In Singapore and the UK

Dr. Liew Hui Min is an accredited consultant dermatologist from the Ministry of Health and the General Medical Council UK.

Her clinical interest includes:

Paediatric Dermatology,
Women’s Dermatology,
General Adult Dermatology.

Having trained in major London Hospitals, Dr Liew returned to Singapore in 2014 as a Consultant at KK Women’s and Children’s Hospital (KKH) where she specialised in paediatric, women, obstetric and vulva dermatology. Currently, Dr Liew practices at The Skin Drs. clinic located at Gleneagles Hospital.

Read Full Bio