Home > News > Pigmentation spots and melasma: how to recognize and treat them?

Pigmentation spots, also called "brown spots," are areas of skin where melanin production becomes excessive. They most often appear on the face, hands, or chest due to sun exposure, skin aging, or hormonal changes. Melasma , or the "mask of pregnancy," is a specific form, often triggered by hormones and UV rays.


Recognizing these blemishes allows you to adopt the right approach: protecting your skin, preventing their appearance, and choosing the appropriate treatment. Chemical peels , laser treatments, topical medical treatments, or combined protocols can effectively correct these irregularities.


This article helps you understand the causes, distinguish between the different types of pigment spots, and discover the most effective treatments to safely reduce them.

What is a pigmented spot?

Pigmentation spots refer to a local overproduction of melanin (pigment naturally present in the epidermis), which results in a darker skin color.


There are several types of pigment spots, also called “brown spots”:


  • Sunspots or "actinic lentigines", linked to years of UV exposure.
  • Age spots , usually flat, especially on the face and the backs of the hands.
  • Melasma (“pregnancy mask”), often facial, is linked to hormonal and solar factors.
  • Post-inflammatory hyperpigmentation , resulting from injury, acne, or skin irritation.

The main causes of brown spots on the skin

Other factors
Main cause
Description
Location / Particularities
Exposure to sun
UVA and UVB rays stimulate melanocytes - melanin-producing cells - and accelerate the formation of pigment spots (Wikipedia).
Exposed areas: face, hands, décolleté; darker complexion.
Hormonal factors
Melasma is frequently seen in women during pregnancy, on contraception or hormonal treatment (Medical News Today).
Knees, forehead, upper lip; symmetrical spots linked to the combination of hormones + sun.
Skin ageing
With age, the regulation of melanin production becomes dysregulated, leading to the formation of so-called age spots.
Backs of hands, face, décolleté; flat, brown spots.
Inflammation and skin trauma
Severe acne, irritation or injury can leave areas more pigmented.
Scar sites, areas of acne or irritation; post-inflammatory spots.
Genetics, certain photosensitising drugs and lifestyle habits (sleep, nutrition, smoking) also play a part in hyperpigmentation.
Varying distribution depending on the factor involved.

Prevention – Good daily habits

To limit the appearance of brown spots on the face and skin, it is essential to adopt a rigorous prevention routine throughout the year. Daily application of a broad-spectrum sunscreen with an SPF of 50 or higher remains the primary measure to prioritize, even on cloudy days or during winter.


Choosing a suitable texture, formulated with mineral filters such as zinc or titanium, and ideally enriched with iron oxides, also helps strengthen the skin's defenses against visible light, which are often neglected. Regular use of dermatological skincare products containing brightening agents such as niacinamide, vitamin C, or azelaic acid helps even out skin tone while promoting hydration. At the same time, a balanced lifestyle (a diet rich in antioxidants, good hydration, and restful sleep) helps maintain skin quality.


Finally, in case of rapid development, change in color or doubt about the nature of a spot, it is strongly recommended to consult a healthcare professional in order to obtain an accurate diagnosis and personalized advice.

Medical and cosmetic treatments available in Geneva

At the Clinique de la Croix d'Or in Geneva, every treatment for pigmentation spots begins with a comprehensive assessment of the skin type, the nature of the spots, and the patient's expectations. This personalized approach allows for the development of a customized protocol that combines effectiveness and safety. Depending on individual needs, various treatments can be considered.

Finally, the success of the treatment depends on regular follow-up and ongoing prevention of recurrence. Strict sun protection, a suitable cosmetic routine, and periodic consultations with a dermatologist help maintain the results achieved in the long term.


To learn more about our protocols, please visit our Dermatology page. You can also book an appointment or view our Prices .

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Depigmenting peels

Depigmenting peels rely on the application of carefully dosed chemical solutions, which stimulate cell renewal and promote the gradual fading of hyperpigmentation areas.

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Laser & Pulsed Light

For well-localized sunspots or age spots, the use of laser or intense pulsed light (IPL) is an effective option , provided that the parameters are precisely adjusted by a specialist.

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Topical medications

In cases of melasma or persistent hyperpigmentation, topical medical treatments may be prescribed. These creams, often formulated with hydroquinone, azelaic acid, or specific combinations, act directly on melanin production to even out skin tone.

Results, risks and precautions after treatment

How long does it take to see results after treatment for brown spots?

Results vary depending on the nature and depth of the pigmentation spots. Generally, a visible improvement appears after two to four sessions, with gradual lightening over the following weeks. The process is gradual, as the skin needs time to regenerate and even out melanin production.


Can brown spots return after treatment?

Yes, pigment spots can reappear if the skin is exposed to the sun again without protection or if the triggering factors (hormonal, medication-related, inflammatory) persist. This is why daily sun protection, even in winter, and regular dermatological checkups are essential to prevent any recurrence.


What are the risks of an inappropriate treatment?

Inappropriate treatment, such as the use of poorly calibrated lasers or depigmenting products not medically supervised, can worsen hyperpigmentation or cause irritation. To ensure safety and effectiveness, it is essential to have a preliminary diagnosis with a specialist and to follow a protocol supervised by a qualified healthcare professional.

When should you seek diagnosis from a dermatologist or specialist physician?

Brown spots on the skin are not inevitable: with appropriate care, combining prevention, monitoring, and targeted treatments, you can achieve a more even and radiant complexion. You should make an appointment if:


  • A stain changes in appearance (shape, color, relief);
  • A stain does not respond to conventional treatments;
  • You are affected by melasma but would like a suitable treatment;
  • You want a reliable medical or aesthetic protocol.


The treatment of pigment spots and melasma requires a prior medical diagnosis.


At the Clinique de la Croix d'Or in Geneva, our team provides you with personalized support, expertise, scientific rigor and well-being.


Book an appointment today for a complete diagnosis and a customized treatment plan.

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