Has anyone tried cosmetics for freckle control?

I'm worried because I don't see any noticeable results even though I've been using skincare products consistently. ㅠㅠ I've tried layering various skincare products, including whitening serums, vitamin products, and tone-up creams, and my skin initially looks brighter, but after a few days, it looks dark again. I used them because they were said to be less irritating, but sometimes my skin becomes more sensitive, and I'm confused about which ingredients I should focus on in the long term. I've heard that skincare products are difficult to manage once they appear, so I'm curious to hear your experiences and see if it's possible to improve skincare products alone.