Why Does Pigmentation Appear?
That dark spot you can see is only part of the pigmentation story.
Pigmentation is one of the most common skin concerns we discuss at Skin Review. Freckles, sun spots, uneven patches or areas of discolouration may all look different on the surface, but understanding why pigment appears in the first place is an important part of deciding how best to care for it.
And the story actually begins below the surface of your skin.
Meet your melanocytes
Within the lower layers of the epidermis are specialised cells called melanocytes.
Their job is to produce melanin, the pigment responsible for giving your skin, hair and eyes their colour. Melanin also plays an important protective role by helping the skin respond to UV exposure.
When melanocytes receive certain signals, they begin producing more melanin. That pigment is then transferred to surrounding skin cells and gradually becomes visible at the surface.
So, the pigmentation you can see today may be the result of activity that began deeper within the skin.
What can trigger pigmentation?
There isn’t one single cause of pigmentation. Different triggers can stimulate melanocyte activity, which is one reason pigmentation can be such a complex skin concern.
UV exposure
UV is one of the most significant triggers.
When skin is exposed to ultraviolet radiation, melanin production increases as part of the skin’s natural protective response.
Over time, repeated exposure can contribute to freckles, sun spots and areas of uneven pigmentation becoming more visible.
This is particularly relevant as we move into spring. With longer days and increasing UV levels, melanocyte activity can increase, potentially bringing existing pigmentation more noticeably to the surface.
Hormonal changes
Hormonal fluctuations can also influence melanin production.
One example is melasma, which commonly appears as patches of pigmentation across areas such as the forehead, cheeks and upper lip.
Because hormones can be involved, this type of pigmentation may behave differently from pigmentation caused predominantly by sun exposure.
Inflammation
Sometimes pigment appears after the skin has experienced inflammation or injury.
A breakout, irritation or other inflammatory response can leave behind an area of darker colour known as post-inflammatory pigmentation.
This is another reason why understanding what’s happening within your individual skin is so important before deciding how to treat what you see on the surface.
Why can pigmentation become more noticeable in spring?
After winter, we naturally begin spending more time outdoors. The days become longer and UV exposure increases.
That increased UV can stimulate melanocytes and encourage further melanin production.
For someone already concerned about uneven tone or existing pigmentation, this can mean areas of discolouration become darker or more noticeable.
It’s why spring isn’t only a time to think about brightening the skin. It’s also an important time to think about protecting it.
Can pigmentation be treated?
The first step is understanding that not all pigmentation is the same.
Rather than simply reaching for a product labelled “brightening”, a considered approach looks at the type and appearance of pigmentation, possible triggers, your overall skin condition and what you’re currently using at home.
Depending on your skin, an approach may include professional treatments, targeted brightening ingredients, appropriate exfoliation, hydration and consistent sun protection.
And because pigment-producing cells can continue responding to triggers, particularly UV, protecting your skin is an important part of maintaining the results you’re working towards.
Brighten, protect and maintain
When it comes to pigmentation, these three words work beautifully together.
Brighten with ingredients and treatments appropriate for your skin.
Protect against UV exposure with daily broad-spectrum sun protection.
Maintain your results with consistent homecare and professional skin advice.
Pigmentation can be complex, but your skincare routine doesn’t need to be.
At Skin Review, we can assess your skin and help you understand what’s contributing to the concerns you’re seeing, rather than simply treating every dark spot in the same way.
Because understanding your skin is the first step towards caring for it well.
More from in my skin
Curious about what happens next?
Our latest in my skin Spring Edition explores brightening, Vitamin C, professional treatments, homecare and why SPF is so important when managing pigmentation.



