Any recommendation for reduce dark spot ?

I use these combo. Vitamin C during my routine (it also contains alpha arbutin which is a great ingredients to brighten the skin). I use the niacinamide during my night routine, and the newest version contains tranexamic acid which makes it more powerful in reducing dark spots🙌

vitamin c, alpha arbutin, niacinamide help with skin tone.

cosrx vit c is a great one🤩

This. I always recommend this to anybody, it's gentle yet effective.

Using a combination of tyrosinase inhibitors. In the morning, using Vitamin C + Ferulic Acid and azelaic acid. Then in the evening, retinol, licorice extract, alpha arbutin or tranexamic acid.