Every time I look in the mirror, my melasma seems to be getting darker, so it’s really bothering me lately. I’ve tried various cosmetics that are supposed to be good, but haven't seen much change, so I’m currently looking into Gangnam GU Silfirm X.

Many people around me have recommended it, saying it’s good for melasma and improving skin tone. Is it really effective?

I’m especially curious if it works on darker blemishes, not just light ones.