Noun
unusual darkening of the skin
Source: WordNetA common skin condition caused by sun exposure is skin hyperpigmentation. Source: Internet
Acne scarring and post-inflammatory hyperpigmentation are top skin concerns. Source: Internet
In most cases, mixed melasma is diagnosed, which means the discoloration is due to pigment in the dermis and may be necessary to help exclude other causes of this local skin hyperpigmentation. Source: Internet
Hair loss, redness, crusting, oozing, pigment changes (hyperpigmentation), skin thickening (lichenification), and other visible signs can occur at itchy locations. Source: Internet
However, if you’re looking for a stronger product to assist with hyperpigmentation, PIH or acne scars I’d try finding a product with a larger percentage of glycolic acid. Source: Internet
In particular, over dryness (sometimes taking the form of dry, scaly patches), and hyperpigmentation, were tolerated much better by individuals who had previously used hydroquinone or tretinoin. Source: Internet