Why Dark Spots Get Darker in the Sun (and How to Stop It)

Many people notice that a dark spot looks darker after a day outdoors. This is not your imagination. UV light stimulates melanin production, so exposed spots can become more visible and take longer to fade.

UVA and UVB

UVB causes sunburn, while UVA penetrates deeper and contributes to pigmentation and ageing. Both are present on cloudy days and, in Nairobi, throughout the year.

Why indoors is not always safe

UVA can pass through window glass. If you sit near a window for hours, your face may still be exposed. This is why daily sunscreen matters even on indoor days.

A simple daily habit

• Apply broad-spectrum sunscreen every morning, SPF 30 or higher.
• Use about two finger lengths for the face and neck.
• Reapply if you are outdoors for long periods.
• Wear a hat and sunglasses when you can.

If you want options, see our sunscreen range, including the Derma Co Ultra Light Zinc Mineral Sunscreen and the UNCOVER Aloe Invisible Sunscreen.

Mistakes to avoid

• Thinking sunscreen is only for beach days
• Applying too little product
• Skipping the neck and ears

Consistent sun protection is one of the most useful steps for managing hyperpigmentation, but results vary. Speak to a healthcare professional about persistent or changing spots.