The watchword: PROTECTION !
Indeed, the UV rays from the sun promote the appearance of brown spots. Therefore, it is advised to limit sun exposure, avoid exposure during peak hours (between 11 a.m. and 3 p.m.), wear clothing and hats for protection, and of course apply a sunscreen daily, even on cloudy days, in both summer and winter.
When it comes to choosing sun protection, it depends on each individual's phototype. According to the FITZPATRICK classification, skin types are categorized into 6 phototypes defined by hair color, complexion, frequency of sunburn, and type of tanning. Thus, individuals with red hair, freckles, and a pale complexion (phototype I), and those with blonde hair and fair skin (phototype II), should opt for a sun protection factor (SPF) of 50. People with light brown hair and fair skin (phototype III), or brown/dark brown hair and slightly tanned skin (phototype IV), should lean towards a sun protection factor of 30 or even 50. Finally, for mixed-race skin of phototype V or black skin of phototype VI, a sun protection with a minimum SPF of 20 is sufficient for protection.
Also limit the use of treatments that may irritate your skin. The skin is already sensitive during pregnancy, so it's better to avoid scrubs or peels. The use of beauty treatments with aggressive active ingredients like retinol or glycolic acid can exacerbate the appearance of pregnancy mask.