Melasma is a common skin condition in adults that causes patches of skin to become darkened and brown or grey, usually on the face. It’s often more prominent in the summer months compared to the winter. Usually, it’s caused by hormonal changes such as pregnancy or the contraceptive pill. It can also run in families.
https://knowyourskin.britishskinfoundation.org.uk/condition/melasma/
Melasma is a common skin condition in adults that causes patches of skin to become darkened and brown or grey, usually on the face. If you’re concerned about what you think could be melasma, you should seek advice from a GP, and if they’re unsure, they may take a biopsy. If you want to avoid melasma, you should try to avoid direct sunlight, skin lighteners or chemical peels.
https://sussexcds.co.uk/patient-information/melasma/