Are products containing Vitamin C actually effective for removing freckles or blemishes?

As I got older, I usually

No matter how meticulously you protect yourself from UV rays

Dark spots and blemishes started appearing little by little around my eyes and cheekbones.

Now, it is getting noticeably worse day by day.

Every night before bed, after basic skincare, a vitamin C-containing

I have been using Missha Vita C Plus Ampoule for several months now.

I'm not sure about the significant whitening effect yet.

Products containing Vitamin C are for removing blemishes and dark spots

I heard that it is not only effective but also has a whitening effect.

Among Unpa members who use vitamin products for skincare

If you actually see whitening effects or reduce freckles or blemishes

I'm curious if anyone has experienced this firsthand.