Niacinamide is a form of Vitamin B3 that does all the things. It's gentle, providing hydration and brightening your skin tone while creating an environmental barrier against damage - perfect for those with acne-prone complexions or who have had trouble healing post-acne marks! Too much can be too much if you're not careful; just know there may be some irritation in excessive amounts or high concentrations.
Here's a little-known fact: people with melanin-rich skin have lower levels of ceramides in their skin. Niacinamide boosts the production of ceramides, a natural component of the skin that help the skin barrier retain moisture to keep your skin hydrated and feeling soft. Research has shown it can sometimes lead to dry patches that result in irritation if not enough moisture gets through when skin is low in ceramides. So next time your feet are looking ashy after an afternoon on campus, you know who to blame!