Dark spots: what are they caused by?
All skin types are concerned by dark spots: fair skin, darker skin and heavily–pigmented skin.
Age is also a factor:
1- 20’s: acne scarring on the skin can create dark spots
2- 20’s to 50’s: hormonal changes lead to dark sports forming on the skin. With time, the production of melanin become “anarchic”, due to exposure to UV rays
Photo-ageing is due to skin exposure to the sun (UVA and UVB rays) leading to marking of the skin (dark spots). Photo-ageing is also accentuated by stress and external aggressions (cold, wind, pollution, etc.)