Ingredient pairing

Can you mix Niacinamide and Vitamin C (LAA)?

Same answer whichever way you searched it: Vitamin C (LAA) and Niacinamide.

Fine togetherThey're fine together.

NiacinamideVitamin C (LAA)

Good news, and a myth worth retiring: niacinamide and vitamin C are fine together. The old warning that they cancel out came from lab conditions that do not reflect how modern products are made.

Routine: You can use these together, morning or night.

NiacinamideWorth paying for
Efficacy9
Barrier9
Acne8

Skip if: very sensitive in high

Vitamin C (LAA)Worth paying for
Brightening10
Efficacy9
Anti-aging7

Skip if: very sensitive, rosacea

Ask your doctor in pregnancy

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They're fine together.

Good news, and a myth worth retiring: niacinamide and vitamin C are fine together. The old warning that they cancel out came from lab conditions that do not reflect how modern products are made.

You can use these together, morning or night.

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Which one goes first?

Apply Vitamin C (LAA) first

  1. 1Cleanse
  2. 2Vitamin C (LAA)
  3. 3Niacinamide
  4. 4Moisturize

On freshly cleansed skin, Vitamin C (LAA) goes on first, then Niacinamide over it. The rule of thumb is thinner and lower-pH first, richer last.

Niacinamide and Vitamin C (LAA): Fine together. They're fine together. Good news, and a myth worth retiring: niacinamide and vitamin C are fine together. The old warning that they cancel out came from lab conditions that do not reflect how modern products are made. Which goes first: Apply Vitamin C (LAA) first.
The short version, if you want to keep it.

Adding Niacinamide and Vitamin C (LAA) to your routine

  1. Good news first: these two get along, so there is no special order or waiting period to manage.
  2. Still add them one at a time, a week or two apart, so if your skin does react you know which one to look at.

For your skin type Sensitive skin should ease in gently: Niacinamide and Vitamin C (LAA) can be mildly irritating on their own, and more so alongside another active.

This is a myth worth retiring. See it, and nine more, in the myths post →

Choosing between them instead? Niacinamide vs Vitamin C (LAA) →

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Niacinamide and Vitamin C (LAA), answered

Can you mix Niacinamide and Vitamin C (LAA)?

They're fine together. Good news, and a myth worth retiring: niacinamide and vitamin C are fine together. The old warning that they cancel out came from lab conditions that do not reflect how modern products are made.

Should you use Niacinamide and Vitamin C (LAA) in the morning or at night?

Either. Niacinamide and Vitamin C (LAA) are fine to use together, morning or night.

How should you introduce Niacinamide and Vitamin C (LAA)?

Good news first: these two get along, so there is no special order or waiting period to manage. Still add them one at a time, a week or two apart, so if your skin does react you know which one to look at.

What else should you not mix with Niacinamide?

Nothing else clashes badly with Niacinamide. It fits into most routines, though it is always wise to introduce one new product at a time.

Sources

Plus how we reach every verdict: how we score →

General guidance, not medical advice. When in doubt, introduce one product at a time, andhere is when to see a dermatologist instead.