Vitamin C + Niacinamide
Vitamin C + Niacinamide — a combination of an antioxidant that brightens and supports collagen with a form of vitamin B3 that strengthens the skin barrier and evens tone. Once thought to be incompatible, modern formulations show the two can be used together effectively in most routines. Both are known for helping to improve radiance and reduce the look of discoloration.
Key points
- Vitamin C is a potent antioxidant that helps neutralize free radicals and brighten the complexion.
- Niacinamide supports the moisture barrier, helps regulate oil, and can reduce the appearance of pores and redness.
- Older concerns about the two canceling each other out were based on high-heat lab conditions not typical of finished skincare products.
- Using them together can offer layered brightening and barrier benefits, though sensitive skin may prefer to space them out.
Frequently asked
Can vitamin C and niacinamide be used together?
Yes, current evidence and stable modern formulas indicate they can be combined without canceling each other out for most people.
Should I apply them in a specific order?
A common approach is to apply the thinner, more acidic vitamin C first, then niacinamide, but either order generally works in practice.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
