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Hyperpigmentation
Hyperpigmentation is a medical term for darker patches of skin caused by excess melanin production. It is one of the most common reasons patients visit our clinic, often after spending years trying over-the-counter "brightening" creams with little success. Pigment disorders can be notoriously stubborn because the "pigment factory" cells (melanocytes) are hypersensitive. At Smooth Skin Clinic, we differentiate between hormonal pigment (Melasma), sun-induced pigment (Lentigines), and trauma-induced pigment (PIH) to prescribe the correct medical-grade therapy.
Key Points
- Diagnosis is Key Treating Melasma like a sun spot (with strong laser) can actually make it worse.
- Sun Protection UV light is the "fuel" for pigment. Strict sun avoidance is mandatory for treatment success.
- Patience Pigment is slow to clear. It often takes 3-6 months of consistent treatment to see significant fading.
- Maintenance Many pigment conditions are chronic and require long-term maintenance to prevent recurrence.
- Hormones Pregnancy, the pill, and menopause are major triggers for Melasma.
What causes hyperpigmentation?
It occurs when melanocytes (pigment cells) become overactive. This can be triggered by:
UV Exposure: Sunlight is the #1 trigger.
Hormones: Estrogen stimulates melanocytes (Melasma).
Inflammation: Acne, eczema, or injury causes the skin to produce pigment as a protective response (PIH).
Heat: Even heat without sun (e.g., hot yoga, saunas) can flair Melasma.
Who gets it?
Anyone can get sun spots, but Melasma and Post-Inflammatory Hyperpigmentation (PIH) are significantly more common in women and individuals with darker skin types (Fitzpatrick III-VI), including Asian, Mediterranean, and African skin, where melanocytes are naturally more active.
Contact Smooth Skin Clinic for a specialized pigment assessment.
Clinical features
The clinical presentation varies significantly depending on the underlying cause. Melasma typically presents as symmetric, blotchy, irregular brown or grey-brown patches on the "mask" areas of the face: the forehead, cheeks, upper lip, and bridge of the nose. It is usually macular (flat) and has poorly defined borders. In contrast, Solar Lentigines (sun spots) appear as discrete, well-defined, round or oval brown macules that look like large freckles, commonly found on the hands and face. Post-Inflammatory Hyperpigmentation (PIH) presents as flat, dark spots (ranging from tan to black) that exactly match the shape and location of a previous injury, such as an acne cyst or scratch.
1. Melasma (Hormonal Pigment) Note the symmetric, "cloud-like" patches on the forehead. The pigment is often patchy and irregular, unlike a distinct freckle.
2. Post-Inflammatory Hyperpigmentation (PIH) This image shows dark marks left behind after acne. Unlike scarring (which is pitted), these are flat stains caused by inflammation.
3. Solar Lentigo (Sun Spots) Distinct, round "age spots" on the hand. These have sharp borders and are caused purely by sun damage, not hormones.
Diagnosis and differential diagnosis
We use a Wood's Lamp (black light) to determine the depth of the pigment.
Epidermal Pigment: Brown color. sits on the surface. Easier to treat.
Dermal Pigment: Blue-grey color. Sits deep in the skin. Harder to treat and requires oral medication or specialized lasers.
Impact and complications
Psychological: Pigment on the face can be distressing, leading to heavy makeup use and social anxiety. Rebound Pigment: The biggest risk in treating pigment is "post-inflammatory hyperpigmentation." If a treatment is too aggressive (e.g., a strong chemical peel), the skin may react by turning darker. This is why we treat darker skin types very conservatively.
Treatment Options
- Topical Inhibitors Prescription-strength creams containing Hydroquinone, Kojic Acid, or Azelaic Acid to stop pigment production.
- Oral Tranexamic Acid A breakthrough tablet treatment for Melasma that calms the blood vessels and pigment cells from the inside.
- Chemical Peels Lactic or Glycolic acid peels to gently lift off surface pigment.
- Laser (Q-Switch / Pico) Used cautiously to shatter pigment.
- Strict SPF Physical sunscreens (Zinc/Titanium) are preferred as they block heat as well as UV rays.
Frequently Asked Questions
Have questions about scheduling or what to expect? Here are answers to common inquiries to help you feel fully prepared.
High-heat lasers (like IPL) can irritate the melanocytes, causing them to dump more pigment as a defense mechanism. This is why we rarely use standard IPL for Melasma.
Melasma is a chronic condition, similar to diabetes or asthma. There is no permanent "cure," but it can be excellently managed so it is invisible. However, if you go out in the sun without protection, it will likely return.
They can help mild sun spots, but they are usually not strong enough for deep Melasma or stubborn PIH. Medical-grade ingredients (like 4% Hydroquinone) are significantly more potent.