Niacinamid Serum 12% plus Zink 2% - XXL

Six weeks in and my skin looks noticeably smoother, and the dark spots on my cheeks have definitely faded a bit. The zinc makes it feel less sticky than other serums I've tried, which is a huge win for my oily t-zone.

The jumbo bottle is a steal for how long it lasts—I’m on month four and barely halfway through, even using it twice daily. That 12% niacinamide strength is no joke; the dark spots on my cheeks have faded enough that I skip concealer half the time now.

Three months in and my pores finally look smaller, not just less clogged but actually tighter. The jumbo bottle lasts forever, so the price per drop is a steal, and it sinks in without that sticky film I've fought with other serums.