For most of us, summer means more time spent outdoors enjoying the sunshine. However, it can also mean an increase in one of the most common skin concerns: hyperpigmentation. This can take the form of dark patches, sun spots or post-acne marks.
Increased sun exposure can significantly worsen hyperpigmentation, making existing patches darker and encouraging new areas to develop.
Understanding why this happens can help you take the right steps to protect your skin and be aware of the possible treatments at a hyperpigmentation clinic.
What is hyperpigmentation?
Hyperpigmentation occurs when certain areas of the skin produce excess melanin, the pigment responsible for skin colour. This overproduction creates patches or spots that appear darker than the surrounding skin. Common types of hyperpigmentation include:
- Sun spots (also known as age spots or solar lentigines)
- Melasma
- Post-inflammatory hyperpigmentation (PIH) following acne or skin injury
- Pigmentation caused by hormonal changes
While hyperpigmentation is generally harmless, many people seek treatment because it can affect skin tone, confidence and overall appearance.
The role of UV exposure in hyperpigmentation
The primary reason hyperpigmentation worsens during summer is increased exposure to ultraviolet (UV) radiation. Melanin is the skin’s natural defence mechanism against UV damage.
When your skin is exposed to sunlight, specialised cells called melanocytes produce more melanin to help protect deeper skin structures. This protective response can trigger or worsen pigmentation issues.
Even short periods of sun exposure can stimulate melanin production, causing:
- Existing dark spots to become darker
- Melasma patches to spread or intensify
- Acne marks to linger for longer
- New pigmentation concerns to develop
This is why many people find their pigmentation becomes more noticeable after holidays, outdoor events or prolonged time in the sun.
Why melasma often flares up in summer
Melasma is particularly sensitive to sunlight. Often appearing as brown or grey-brown patches on the cheeks, forehead, nose and upper lip, melasma is commonly influenced by hormones and UV exposure.
Even with sunscreen, small amounts of UV and visible light can stimulate melanocytes in susceptible individuals. This makes summer one of the most challenging seasons for people living with melasma.
Post-acne marks can become more noticeable
Many people confuse acne scars with post-inflammatory hyperpigmentation. While true acne scars involve changes to skin texture, post-inflammatory hyperpigmentation appears as flat red, brown or purple marks left behind after a breakout heals.
These marks are especially vulnerable to sunlight. UV exposure can stimulate additional pigment production within healing skin, causing acne marks to remain visible for months longer than they otherwise would.
Heat can also play a part in pigmetnation
It’s not just UV rays that can worsen pigmentation. Research suggests that heat itself may contribute to increased melanin production in some individuals, particularly those with melasma.
During summer, higher temperatures can increase inflammation within the skin, which may trigger pigment-producing cells and encourage dark patches to develop or deepen.
This means that even activities such as exercising outdoors, sitting in hot environments or spending time in direct sunlight can potentially aggravate pigmentation concerns.
Why professional hyperpigmentation treatment matters
While prevention is important, existing pigmentation often requires professional intervention to achieve noticeable improvement. The most effective treatment plan depends on the type and severity of pigmentation involved.
A skin consultation can help identify the underlying cause and determine which treatments may be most suitable.
Options may include:
Advanced facials
Professional skin treatments can help improve skin cell turnover, brighten the complexion and support a more even skin tone. Many advanced facial treatments are designed to target pigmentation while improving overall skin health.
Dermalux LED Phototherapy
Dermalux LED Phototherapy can be a valuable addition to a pigmentation treatment programme. By supporting skin healing and reducing inflammation, LED light therapy can help optimise skin health and complement other pigmentation-focused treatments.
How to protect your skin this summer
While professional treatments can help address pigmentation, prevention remains essential.
To minimise the risk of worsening hyperpigmentation during summer:
- Wear a broad-spectrum SPF 30 or higher every day
- Reapply sunscreen regularly, especially when outdoors
- Wear a wide-brimmed hat when spending extended periods outside
- Seek shade during peak sunlight hours
- Avoid picking spots or irritating the skin
- Follow professional skincare advice consistently
Many people underestimate how much incidental sun exposure they receive during everyday activities such as driving, walking or sitting near windows. Consistent protection can make a significant difference to long-term results.
Take control of summer hyperpigmentation
Hyperpigmentation often becomes more noticeable during summer because UV exposure, visible light and heat can all stimulate excess melanin production.
With the right combination of skincare, sun protection and expert-led treatments, achieving a brighter, more even complexion is possible throughout the summer and beyond.
