Niacinamide and Vitamin C: Can You Use Them Together?
In short: Yes, you can use niacinamide and vitamin C together. The idea that they cancel each other out comes from decades-old studies using pure, unstable ingredients under extreme conditions. In modern formulas they're compatible — and even complementary — for brightening and barrier support.
The myth: "niacinamide cancels out vitamin C"
This claim comes from old research where niacinamide and pure L-ascorbic acid were combined under high heat, forming a compound that could cause temporary redness and reduce effectiveness. Those conditions don't reflect how modern, stabilised formulas are made — or how skincare is actually used on skin.
What the science says now
At the concentrations and pH used in today's products — and especially with stabilised forms of vitamin C — niacinamide and vitamin C work together without a meaningful problem. Both are well tolerated, and each supports a different part of the same goal: more even, radiant skin.
Why they work well as a pair
| Vitamin C | Niacinamide | |
|---|---|---|
| Main role | Antioxidant, brightening | Barrier support, even tone |
| Targets | Dullness, uneven tone | Redness, pores, moisture loss |
| Tolerance | Can irritate (pure forms) | Very well tolerated |
Used together, one brightens and protects while the other supports the barrier — complementary rather than competing.
How to use them together
- Same routine — apply vitamin C first on clean skin, then niacinamide, or use a single product that contains both.
- Split AM/PM — vitamin C in the morning for antioxidant protection, niacinamide at night. Useful if your skin is very reactive.
For more on the different vitamin C forms, see ascorbyl glucoside vs vitamin C and what niacinamide actually does.
How we combine them at Clique Beauty
Our Radiance Face Cream pairs a stabilised vitamin C (ascorbyl glucoside) with 2% niacinamide in one formula — precisely because the two complement each other. It's gentle enough for daily morning use under SPF and makeup, and measured a +42% increase in hydration at 28 days of use.*
FAQ
Can I use niacinamide and vitamin C at the same time?
Yes. In modern formulas they're compatible. Apply vitamin C first, then niacinamide, or use a product that contains both.
Will they cause redness together?
Rarely, and mainly with high-strength pure vitamin C on very sensitive skin. Stabilised forms make this a non-issue for most people.
Which goes first?
Vitamin C on clean skin, then niacinamide — thinnest to thickest, as usual.
*Instrumental hydration measurement, 28 days of use. Individual results vary.
Comments