Every time I look in the mirror, I suddenly become concerned about facial pigmentation.

Lately, when I wake up in the morning, wash my face, and look in the mirror, something has become particularly noticeable. I used to think my skin tone was clear and clean, but at some point, it started to feel dull. The pigmentation around my cheekbones in particular has taken hold. I try to cover it up with makeup, but it's frustrating because it doesn't completely hide it. I thought I was diligent about applying sunscreen when I go out, but maybe I wasn't doing enough? I don't go outdoors often, but the pigmentation suddenly appeared. Sometimes, the way I look in the mirror feels unfamiliar, and it makes me depressed. I tried using vitamin-based home care products, but I didn't see much of a difference. I don't know if it's simply fatigue or a sign that I need more serious care. I'm curious to know what you're doing to address facial pigmentation. If you have any products or lifestyle habits that have proven effective, could you recommend one?