Niacinamide + Vitamin C: Can You Use Them Together?

For years, the skincare community debated whether niacinamide and vitamin C could be used together. Here’s what the science actually says.

The Current Consensus: They’re Compatible

Contemporary dermatologists and cosmetic chemists agree that niacinamide and vitamin C can be used together safely. For a full breakdown of each ingredient, see our best ingredients for pigmentation guide.

How to Use Them Together

Option 1: Same routine: Apply vitamin C serum first, allow to absorb, then apply niacinamide serum. Option 2: Different times of day: Use vitamin C in the morning (with SPF) and niacinamide in the evening. Learn about the vitamin C + sunscreen morning combination. For the correct layering order, see how to layer skincare products correctly.

Expected Results from This Combination

See niacinamide before & after results and our vitamin C serum guide. For a complete brightening routine, follow our AM/PM brightening routine. Explore Hershay's brightening serum.