All year round, Singaporeans are exposed to warmth and sunshine due to its tropical climate. We have basically lived our lives enjoying the land’s lush greenery, vibrant beaches, and outdoor cafes. For anyone suffering from hyperpigmentation, this intense heat enveloping our environment is a relentless challenge. Hence, it is common for many patients to seek the services of a melasma doctor in Singapore (https://onefaceclinic.com/why-is-my-melasma-not-improving-in-singapore/).
Even with diligent skincare practices and the religious application of strong sunscreens, many melasma sufferers observe their pigmentation worsening rapidly. Particularly during summer, you may notice a sudden, aggressive darkening of stubborn melasma patches on your face.
The prevention and management of melasma from fully taking over your skin needs more than just basic sun protection. We must have a thorough understanding of its unique physiological triggers as influenced by Singapore’s equatorial heat.
A Deeper Look at Melasma
Melasma is more than just sun damage. It is an acquired, chronic disorder of hyperpigmentation that is identifiable by blotchy, symmetrical, brown-to-grey-brown patches on the skin. It usually develops on the cheeks, forehead, nose bridge, and upper lip. While it may often be categorised along with other facial flaws like freckles or sunspots, melasma is totally different. This condition roots from complex hormonal issues and skin inflammation that involves hyper-reactive melanocytes to produce more pigments when stimulated.
You may notice your melasma fluctuate between seasons, especially when you live in a temperate country. However, in a country that sits just one degree north of the equator, Singapore experiences high UV levels and circling heat almost all year round. During months that have higher temperatures, humidity, and scorching radiation from the sun, your melasma flare-ups may reach an unparalleled peak.
Reasons Why Melasma Darkens Quickly in Singapore’s Heat and UV Exposure
Many melasma doctors in Singapore are often asked, “Doctor, why is my melasma still spreading when I apply sunscreen daily?” The answer to this question lies in the complicated nature of triggers that exist in tropical places.
1. Infrared Radiation (IR) and Heat
It is not widely known, but ambient heat alone is one of the major triggers for melasma. The sun’s infrared radiation along with the heat generated from your activities each day like exercising outdoors, working in a warm contained space, or even just stepping out into Singapore’s humid air can raise the internal temperature of your skin. The thermal stress then triggers inflammation locally in your skin and boosts melanin synthesis, resulting in pigment flare-ups even when you have no contact with direct sunlight.
2. High UV Index and UVA Rays
The records of UV index readings in Singapore remain very high consistently. While it is generally known that Ultraviolet B (UVB) rays can cause sunburn, Ultraviolet A (UVA) rays are the actual culprits when it comes to penetrating your skin’s dermis and stimulating the excess production of melanin. It is extremely easy for UVA rays to pass through car windshields, glass windows, and lightweight cloud cover. This means that you are regularly exposed to the harmful rays even when your commute is short or when you sit by the office window.
3. High-Energy Visible (HEV) Blue Light and Visible Light
The sun is not only the source of our exposure to harmful rays. Everyday, we face digital screens indoors that emit high-energy visible (HEV) blue light to our faces. Studies done by medical experts have discovered that HEV light can penetrate deeper into the skin more than UV rays. This worsens hyperpigmentation significantly, especially in skin types III to VI, which are common in Southeast Asia.
Is Basic Sunscreen Enough to Protect Your Melasma Prone Skin?
Sunscreen remains the gold standard for preventing your skin from developing melasma, but not every formula can provide the level of protection it needs.
You may consistently use sunscreen with SPF 30 or SPF 50, but still notice your patches darkening. While this does not entirely mean that the sunscreen is totally ineffective, it can indicate that the product does not have a strong UVA protection that is sufficient to guard against harmful rays or may lack protection from visible light. It may also mean that the formula is applied infrequently or too sparingly. Your applied sunscreen loses its ability to protect your skin when you sweat, swim, wipe your face, or stay outdoors for too long.
Tips When Choosing Medical Sunscreen Formulations
Choosing the right kind of sunscreen goes beyond just looking at the SPF number indicated on the product. A melasma doctor in Singapore may recommend a high-protection, broad-spectrum sunscreen based on your skin type, pigmentation concerns, and daily activities.
Below are some factors to consider when choosing medical sunscreen formulations:
- Strong UVA Protection – Look for products that have a high UVA protection rating like PA++++.
- SPF 50 or 50+ – When applied correctly, SPF 50 or 50+ sunscreens can provide high protection against UVB..
- Wearable Texture – How the product feels on your skin matters. Choose one that feels comfortable and natural.
- Iron Oxide Pigments – Iron oxides can provide additional protection from visible light. Tinted formulations usually contain this ingredient, which is useful for melasma patients.
- Mineral Fillers – Titanium dioxide and zinc oxide add UV protection and are usually suitable for sensitive skin. However, not all mineral sunscreen may provide adequate protection from visible light.
Proper Application of Sunscreen
It is important that you follow the instructions indicated on the product when applying sunscreen. In general, you apply a generous amount of the product to your face, neck, and ears before stepping out into the sun. Reapplication is recommended every two hours, particularly when you are consistently under the intense heat of the sun and following heavy sweating, swimming, or towel-drying.
Aside from sunscreen, use other accessories for sun protection like a wide-brimmed hat, sun-protective clothing, and sunglasses. If possible, avoid sun exposure especially during peak hours.
Melasma Flare Treatment Options
When your melasma patches become darker, your first priority is to calm your skin, strengthen its photoprotection, and minimize the production of excess pigments while avoiding further inflammation.
A melasma doctor in Singapore may recommend the following treatment options:
1. Medical-grade Topical Treatments
Depending on the severity of your melasma, medical history, and skin sensitivity, your doctor may prescribe skincare products or professionally guided topical treatments. A sample of these include azelaic acid, hydroquinone, retinoids and other medications that regulate pigments.
2. Protective Recovery Peels
When needed, your doctor may recommend an aggressive chemical peel to immediately remove darkened skin pigmentation. This is often done after patients have been intensely exposed to the sun for a long period of time.
Superficial peels containing glycolic, lactic, or mandelic acid may be considered by your melasma doctor in Singapore following a thorough assessment of your skin condition. The goal is to perform controlled exfoliation instead of aggressive peeling. In addition, barrier-repair moisturisers and gentle skincare must be done to avoid irritating the skin.
When Should You Book an Appointment with a Melasma Doctor in Singapore?
Consider booking an appointment with a melasma doctor in Singapore if you see your melasma getting darker despite sunscreen use, it fails to improve even with consistent skincare, or when it spreads to new areas. A doctor can evaluate your condition and confirm if the symptoms that you exhibit accurately characterise melasma or other hyperpigmentation problem. By getting a precise diagnosis, your doctor can develop a personalised management plan for your skin.