I have light pigmentation marks on both cheeks would this cream be suitable for that?

This cream combines hydroquinone, a steroid, and tretinoin, which together are a well-established approach for stubborn pigmentation, but it's a potent combination meant for short, supervised courses rather than everyday long-term use. Using it longer than advised, especially the steroid component, can actually cause new skin problems including a different kind of discoloration. I'd really recommend having a dermatologist look at your pigmentation first, so they can confirm this is the right treatment and tell you how long to safely continue it.