What products or treatments would be good for managing freckles or whitening?

Hello

Lately, my complexion seems to have gotten noticeably duller, so I get worried every time I look in the mirror...

I was just about to set up a routine to meticulously care for my blemishes and brighten my complexion. I've noticed that many of my acquaintances these days are using vitamin-infused ampoules or creams in their morning and evening routines. Seeing how satisfied they are—saying their complexions have noticeably brightened and that people around them have complimented how much better their skin looks—I'm really getting interested in this myself.

I looked it up and found that the key to whitening care is diligently applying sunscreen for UV protection, and that you must combine this with moisturizing to achieve a synergistic effect. Also, what dermatological procedures would be effective?

When my skin becomes clear and bright, my overall impression looks much kinder and neater, so I plan to take this opportunity to properly take care of it. How do you all usually manage your freckles or skin whitening? Please recommend any vitamin products you've seen results with, any great tips, or dermatological treatments you know of!