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Genetics: there is still no research that actually proves the relationship of specific genes that could explain the appearance of melasma. However, the prevalence of spots in certain biotypes suggests a connection. What is known, for now, is that dark, black and Asian women are more predisposed than very white women, such as Europeans.

Sun exposure: Hyperpigmentation occurs on the face when any other part of the body is exposed to the sun without protection, even if the face itself has been protected. In the face of this, there is a production of the hormone that stimulates tanning, with receptors that end up reactivating melasma.

Heat: according to experts, high temperatures dilate the vessels of the face, highlighting melasma spots in predisposed skin.

Hormonal changes: use of contraceptives, fertilization treatments and pregnancy are factors identified as triggering melasma, with the female hormone estrogen being the main cause.

“Therefore, it is important to pay attention to the use of a filter with a high SPF (always above 30)”, she points out, noting that it is essential to follow up with a specialized dermatologist to identify the real cause of melasma.