NUMBUZIN Nad eye cream

NAD+ in Skincare: Is It Just Niacinamide With Better Marketing?

NAD+ sounds like the next big thing - but much of its benefit likely comes from niacinamide. An honest look at the trend ingredient.
Arencia Vitamin C Booster Shot and Anua Niacinamide 10 + TXA 4 serum side by side with yellow cream and pink serum textures.

Niacinamide and Vitamin C Together: The Myth, Briefly Explained

Using niacinamide and vitamin C together? The old myth comes from a 1960s lab experiment - it has nothing to do with your actual routine.