Please recommend a gentle whitening product that is good for sensitive skin!

My skin tone itself isn't dark, but it looks patchy and messy because of freckles and blemishes, so it's a complex for me😢

I heard that Vitamin C is good for whitening and antioxidant effects, and it turns out that whitening products also contain a lot of Vitamin C.

I tried the COSRX Vitamin C 23% Serum before because it was popular, but perhaps because my skin is sensitive or because the concentration was too high

I remember barely managing to use it because it stung and felt sticky, and the user experience wasn't great... haha.

Since then, for some reason, I've become a bit cautious about using Vitamin C products.

Are there any effective whitening products that can be used comfortably without irritation, even on sensitive skin?

Please recommend lots of good products, regardless of whether they are ampoules, serums, creams, or face masks! 🙏🙏