Melasmais one of the most common forms ofhyperpigmentationand appears as irregular brown patches, especially on the face. Although it does not pose a health problem, it can significantly impact the self-esteem and quality of life of those who suffer from it.
The good news is that, while it is often a difficult condition to treat, a propersun protectionstrategy, combined with targeted skincare and the support of a dermatologist when necessary, can help limit its appearance and reduce its worsening.
What ismelasma?
Melasmais a condition characterized by the appearance of brown or grey-brown patches due to excessive melanin production. It mainly appears on:
- forehead;
- cheeks;
- nose;
- upper lip;
- chin.
In some cases, it can also affect the neck and forearms, especially in areas more exposed to the sun.
Unlike commonsunspots(solarlentigines),melasmatends to have less defined borders and a more extensive and symmetrical distribution.
It is particularly common in people with medium to dark skin tones but can appear on any skin type.
Who is most likely to developmelasma?
Melasmaprimarily affects women, especially between the ages of 20 and 50.
Among the main risk factors are:
- pregnancy;
- use of birth control pills;
- hormone replacement therapy;
- genetic predisposition;
- exposure to UV rays;
- exposure to visible light.
Hormones play an important role in the development of the condition, which is whymelasmais often also referred to as the "mask of pregnancy."
Why doesmelasmaappear?
Melaninis a natural defense system for the skin against sun damage. However, when melanocytes are continuously stimulated, they can produce pigment irregularly, leading to persistent areas ofhyperpigmentation.
Among the main triggers are:
- exposure toUVA and UVB rays;
- visible light;
- hormonal changes;
- genetic predisposition;
- intense heat;
- some photosensitizing substances or medications.
Even a few minutes of sun exposure can be enough to reactivatemelasma, especially in predisposed individuals.
Why sun protection is crucial against melasma
For those suffering from melasma, photoprotection is the most important preventative treatment. Indeed, exposure to UV rays further stimulates melanin production, making spots darker, more persistent, and harder to treat.
For this reason, specialists recommend using a broad-spectrum sunscreen with SPF 50 every day, even when the sky is cloudy or you spend most of the day indoors.
Protection should include:
- filters against UVA and UVB rays;
- protection from visible light, preferably with tinted sunscreens containing zinc oxide or titanium dioxide;
- reapplication every two hours during outdoor exposure.
Sun protection, however, should not be limited to cream.
UPF clothing: additional protection against UV rays
For those suffering from melasma, supplementing sunscreen with a physical barrier is one of the most effective strategies for preventing sun damage.
UPF clothing (Ultraviolet Protection Factor) is designed to block most ultraviolet radiation before it reaches the skin. A certified UPF 50+ garment can filter approximately 98% of UVA and UVB rays.
Compared to regular clothes, UPF fabrics offer more consistent protection, especially during outdoor activities such as:
- walking;
- sports;
- beach;
- mountains;
- gardening;
- driving.
Completing protection with wide-brimmed hats, sunglasses, and covering clothing significantly helps reduce overall UV exposure.
Can melasma be eliminated?
The treatment of melasma requires patience and consistency. In most cases, there is no definitive solution, but significant improvement can be achieved by controlling the factors that promote its appearance.
The dermatologist may consider using specific treatments such as:
- depigmenting creams;
- retinoids;
- azelaic acid;
- tranexamic acid (in selected cases);
- chemical peels;
- laser, when indicated.
It is important to remember that any treatment is less effective if the skin continues to be exposed to UV rays without adequate protection.
How to prevent melasma every day
Prevention is the most effective way to limit the appearance of spots and slow down their worsening.
The main good habits are:
- apply a broad-spectrum SPF 50 sunscreen every morning;
- reapply it throughout the day if you spend time outdoors;
- use hats, sunglasses and protective clothing against UV rays;
- opt for UPF 50+ certified clothing during prolonged exposure;
- avoid the sun during the central hours of the day;
- maintain a gentle skincare routine that preserves the skin barrier.
These precautions not only help control melasma, but also contribute to preventing premature aging, sun-induced signs, and other forms of hyperpigmentation.
When should you consult a dermatologist?
It is advisable to consult a dermatologist if:
- the spots increase rapidly;
- melasma does not improve despite proper photoprotection;
- hyperpigmentation affects psychological well-being;
- you want to start a personalized treatment.
A specialist evaluation allows distinguishing melasma from other pigmentary conditions and setting up the most suitable therapy for your skin type.
Protecting skin today means preserving it over time
Melasma is a complex condition, influenced by genetic, hormonal, and environmental factors. While it cannot always be completely prevented, proper skin protection is the most effective tool to limit its progression. Daily use of SPF 50 sunscreen, reducing exposure to UVA and UVB rays, and choosing UPF clothing when possible, helps reduce the impact of UV rays, contributing to preventing the worsening of melasma, sunspots, hyperpigmentation, and the main signs of premature aging caused by the sun.
