What causes uneven skin tone?

Dermalogica Treatment Kit

An uneven skin tone, called hyperpigmentation, is irregular darkening of the skin. The cause: overproduction of melanin, the pigment responsible for skin and hair colour. The resulting dark patches and spots are typically perceived as “aged skin” and can make you look more than 12 years older. how is uneven skin tone caused? Sun exposure:¬†When…

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