Since la radz is in the business of perpetually seeking better and brighter skin, we’ve known about the the glow-worthy benefits of vitamin C for a while now. And if you were to peruse any Byrdie editor’s skincare routine you’d more than likely find at least a few elixirs with said superstar ingredient. After all, science doesn’t lie: It works.  However, when a recent email came through my inbox singing a different vitamin’s skin praises, I was intrigued. Apparently, vitamin B3 (also known as niacinamide) is another dark horse when it comes to turbo-charged brightening benefits.