Sun Exposure : Sunlight can create age spots or sun spots on your face which can lead to hyperpigmentation.
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Inflammation :These types of skin conditions cause skin inflammation and once the inflammation reduces, you may notice hyperpigmented skin.
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Melasma : Melasma is a skin disorder that occurs either due to hormonal changes or extreme sun exposure.
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Medications : Few medications can directly cause hyperpigmentation in your facial skin.
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Medical Conditions : There are many mild and serious medical conditions that can trigger hyperpigmentation issues on your facial skin.
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Harmful Cosmetic Products : Your face endures a lot when you put cosmetic make up products which contain harmful chemicals in them.
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Age : It is true that your melanin-producing cells, melanocytes, decrease with age.
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