Can You Use Niacinamide and Vitamin C Together?

Yes, they work well together

Yes. The idea that they cancel each other out comes from old lab experiments that heated the pure ingredients together. At room temperature in normal products, they are fine to layer.

How to use niacinamide and vitamin c in one routine

Morning

Cleanser, vitamin C, niacinamide, moisturizer, sunscreen

Night

Niacinamide can go here too

Why

The myth traces back to experiments that combined pure niacinamide and ascorbic acid at high temperatures. Your products sit at room temperature.

If you do notice flushing, it is easy to split them between morning and night, but you don’t need to treat them as enemies.

What to watch for

L-ascorbic acid serums can sting on their own. If the pair stings, the vitamin C is the more likely cause.

Check your whole routine

The checker below starts with this pair selected. Tap anything else you use to see every pairing and a routine that keeps them apart.

Tap the actives you use (pick two or more)

1 pairing checked

Niacinamide + Vitamin C
Fine together
The "they cancel out" claim comes from old lab work that heated the pure ingredients together. At room temperature they are fine. Read more

A routine that keeps them apart

Morning

Cleanser → Niacinamide → Vitamin C → moisturizer → sunscreen

Night

Cleanser → Niacinamide → moisturizer

On a prescription? Ask your prescriber before adding other actives. Want this checked against your actual products? Acnera scans your whole routine.

Frequently asked questions