To my knowledge, BCP can cause cloasma if you expose your skin to the sun. Know some women who have this kind of cloasma caused by BCP, and once you get it it's almost impossible to clear it. I'm on Qlaira BCP and my GP adviced to always use a sunscreen. Since Qlaira is very similar to HRT in many ways, if I were you I'd avoid going out in the sun without sunscreen.
By the way, I have used sunscreen daily, even in winter, even when rainy, since I was 30. I'm paler than Casper the Ghost and always get unasked advices about how much better I would look with a little tan. Thanks, but no thanks. I look ten years younger than my old school mates that fried themselves in the sun for years, almost no wrinkles and not one spot.
I'd rather get my tans from a tube and my vitamin D from a pill
![Smiley :)](https://www.menopausematters.co.uk/forum/Smileys/extended/smiley.gif)
Weird that we pale Europeans want to be brown but my Mexican and Peruvian friends who are naturally tan want to be paler. Humans are weird.