Specific cells of the skin called melanocytes produce a brown pigment, melanin, which colours the skin evenly. Produced in excess, melanin accumulates locally and the skin takes on a darker colour. This is known as hyperpigmentation.

Pigmentation spots are generally concentrated on parts of the body exposed to the sun: face, neck, back, etc.

Repeated sun exposure, cutaneous skin ageing, hormonal diseases or drugs induced photosensitivity, involve the appearance of different types of brown spots:

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  Due to drugs or hormonal imbalances (pregnancy mask) and linked to sun exposure
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  Age spots or solar spots linked to repeated sun exposure
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  After severe sunburn during teenage period
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  After an inflammatory skin reaction due to injuries