Why is My Face Getting Darker Without Sun
One major reason why the face gets darker without sun exposure is hormonal imbalance. Hormones have a direct effect on melanocyte activity. Changes in estrogen, progesterone, cortisol, and thyroid hormones can increase melanin production even in the absence of sunlight. This is why facial darkening is commonly seen during pregnancy, menstrual irregularities, menopause, and while using hormonal contraceptives.
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