What Is Melasma? Causes and Effective Prevention

Melasma is no longer anyone's worry alone, as this condition becomes increasingly common, especially in women after the age of 25. The dark spots that appear not only affect natural beauty but also cause a loss of confidence in communication. So, what is melasma? How can you recognize and prevent it effectively?

What is melasma?

Melasma is a condition in which dark patches appear, usually concentrated on areas of skin exposed to sunlight such as the cheeks, forehead, nose and chin. These brown spots form due to a disorder of the melanin pigment – the pigment that determines skin color. When melanin is overproduced in a specific area of skin, it forms brown spots, causing melasma.

Causes of melasma

Melasma is a common dermatological problem caused by many different factors. Understanding the causes will help you prevent and treat it more effectively.

The impact of UV rays from sunlight

Sunlight is the leading culprit behind melasma. Ultraviolet (UV) rays stimulate melanocytes (melanin-producing cells) to work excessively, causing the skin to produce more melanin to protect itself from the harmful effects of the sun. However, the uneven accumulation of melanin leads to dark spots appearing on the skin's surface, causing melasma.

Hormonal disorders

Hormonal changes are another common cause of melasma, especially in women during stages such as:

Pregnancy: During pregnancy, the hormones estrogen and progesterone rise, making melanin production stronger and leading to melasma, often called “pregnancy melasma” (or melasma).

Postpartum: Hormones continue to change after childbirth, disrupting the skin's pigment system.

Using birth control pills: The use of hormonal birth control pills can also cause hormonal imbalance, stimulating the formation of melasma.

Menopause: A decrease in estrogen levels during menopause can also affect melanin production, increasing the risk of melasma.

Genetics

Genetic factors play an important role in the formation of melasma. If your family has a history of people with melasma, you are at high risk of melasma due to genetic factors that determine your melanin-producing constitution and how your body reacts to external factors such as sunlight or hormones.

Tension and stress

Stress not only affects overall health but can also make skin more prone to melasma. When the body is stressed, more of the hormone cortisol is produced, disrupting the endocrine system and stimulating the activity of melanocytes. This leads to the overproduction of melanin in certain areas of skin, causing melasma.

Using unsuitable or poor-quality cosmetics

Using cosmetics containing harmful chemicals, such as hydroquinone or high-dose corticosteroids, can damage the skin. These ingredients can break down the skin's natural protective barrier, making the skin more sensitive to sunlight and increasing the risk of melasma. In particular, using skincare products of unknown origin can cause irritation and dermatitis, contributing to making melasma more severe.

The effect of blue light from electronic devices

Besides sunlight, blue light from phones, computers and other electronic devices can also damage the skin. Blue light can penetrate deep into the skin, causing cell oxidation and stimulating melanin production, contributing to the formation of melasma.

The aging factor

As age increases, the skin's regeneration process slows, and the skin loses elasticity and its ability to protect itself against environmental factors. This causes the skin to become thinner and more easily damaged under the impact of sunlight and other factors, thereby increasing the risk of melasma.

Inflammation and skin damage

Skin inflammation conditions such as acne, eczema, or skin damage from improper cosmetic treatments (such as chemical peels or unsuitable lasers) can lead to melasma. When the skin is damaged, the body's self-protection process stimulates melanin production in that area, causing brown spots or areas of darkened skin.

Common types of melasma

Superficial (epidermal) melasma

Superficial melasma is a type of melasma that usually appears in large patches on the skin's surface, ranging in color from light to dark. It is easy to recognize and tends to lie in the epidermis (the outermost layer of the skin).

Deep (dermal) melasma

Deep melasma is much more difficult to treat because the roots of the melasma run deep beneath the skin. Deep melasma is darker in color and often appears as small round spots.

Mixed melasma

Mixed melasma is a combination of superficial and deep melasma. It is the most common type and also the hardest to treat because it combines the characteristics of both types.

Effective melasma treatments

Treating melasma requires perseverance and must suit each type of melasma and each person's skin condition. Below are some common and effective melasma treatment methods:

Treatment with medication

Topical medications: Creams and gels containing ingredients such as hydroquinone, tretinoin, kojic acid and azelaic acid work to fade melasma and inhibit melanin production.

Oral medications: In some cases, a doctor may prescribe oral medication to treat melasma from within.

High-tech therapies

Laser: Laser technology uses high-intensity light to break down melanin pigment, effectively fading melasma.

Chemical peels: This method uses acids (such as glycolic acid, salicylic acid and lactic acid) to peel off the outermost layer of skin, promoting the regeneration of new cells. Chemical peels help brighten the skin and fade melasma in the epidermis. Peels are often used for superficial or mixed melasma.

Microneedling: Creates tiny micro-holes in the skin to increase the absorption of nutrients and stimulate the production of collagen and elastin.

Treatment with natural methods

Some natural ingredients can help fade melasma, though the results are usually slower than other treatment methods.

Note when treating melasma: Before applying any treatment, seek advice from a dermatologist to find a method suited to your specific skin condition.

Effective ways to prevent melasma

Use sunscreen daily

This is the most important measure for preventing melasma. Sunlight is the main cause of the skin producing excess melanin, leading to melasma. Therefore, protecting the skin from the sun is the top priority in preventing melasma.

Choose a sunscreen with SPF 30 or higher: A sunscreen with SPF 30 helps protect the skin from about 97% of UVB rays. For those prone to melasma or who must be exposed to the sun a lot, choose a sunscreen with a higher SPF.

Reapply sunscreen every 2 hours: Especially if you go outside or are very active and your skin sweats, you need to reapply to maintain effective protection.

Use a broad-spectrum sunscreen: A broad-spectrum sunscreen helps protect the skin from both UVA and UVB rays, thereby preventing long-term skin damage.

Use skin-protecting accessories

Besides sunscreen, you need to protect your skin by using a hat, sun-protective clothing and sunglasses when going out. Covering the skin helps minimize direct exposure to UV rays, thereby limiting the risk of melasma.

Care for your skin properly

A proper skincare routine helps keep the skin healthy and prevents the formation of melasma.

Cleanse the skin: Cleansing the skin daily helps remove dirt, sebum and harmful factors from the environment. This helps maintain healthy skin and reduces the risk of melasma caused by inflammation or skin irritation.

Moisturize the skin regularly: Skin lacking moisture becomes dry and weak and is more easily damaged by the environment. Using a suitable moisturizer helps strengthen the skin's protective barrier, keeping the skin soft, smooth and healthy.

Use an antioxidant serum: Products containing vitamin C, vitamin E or niacinamide help protect the skin from the harmful effects of UV rays and environmental pollution. These nutrients help brighten the skin and prevent the formation of melanin.

A healthy diet

Supplement vitamins: Vitamins C, E and A have antioxidant effects that protect the skin.

Drink enough water: Water helps eliminate toxins and boost the skin's moisture.

Limit spicy, heaty foods: Spicy, heaty foods can stimulate melanin production, causing melasma.

Eat plenty of green vegetables and fruit: These provide the fiber, vitamins and minerals the skin needs.

A healthy lifestyle

Keep a relaxed mind: Stress increases cortisol production, causing hormonal disruption and worsening melasma.

Get enough sleep: Sleep helps the body recover and regenerate cells.

Limit the use of stimulants: Alcohol and cigarettes reduce the ability

Treat underlying conditions

Control underlying conditions: If melasma is caused by conditions such as liver or kidney problems, the underlying condition must be treated to improve the skin.

Adjust your cosmetic-use habits

Using poor-quality cosmetics or ones unsuited to your skin type can cause melasma. Be sure to choose safe products that do not contain ingredients that irritate the skin or make it sensitive to sunlight.

See also: Sắc Ngọc Khang ++ Tablets, which help beautify the skin, limit dark spots and melasma, and contribute to preventing skin aging.

Conclusion

Melasma is a problem not to be taken lightly, as it greatly affects both appearance and confidence. Understanding the causes, signs and prevention will help you build an optimal skin-protection strategy. Care for your skin every day to preserve its youthful, radiant beauty!

We hope this article has given you the information you need about melasma. If you still have questions or need further advice on skincare products, do not hesitate to leave a comment or contact us for support!