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Ingredient pairing

Can you mix Cysteamine and Vitamin B3?

Written by Maya FaourHow we score →

Fine togetherThey're fine together.

CysteamineVitamin B3

These two actually work well together, and are often formulated side by side.

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

CysteamineWorth paying for
Efficacy9
Brightening9
Anti-aging4

Skip if: pregnancy, breastfeeding, very sensitive, compromised barrier

Not in pregnancy
Vitamin B3Worth paying for
Efficacy9
Barrier9
Acne8

Skip if: very sensitive in high

Which one goes first?

Either order works

  1. 1Cleanse
  2. 2Cysteamine + Vitamin B3
  3. 3Moisturize

Cysteamine and Vitamin B3 sit at about the same step, so the order is not critical. As a rule of thumb, apply the thinner, more watery one first, then the richer one over it.

Adding Cysteamine and Vitamin B3 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: Cysteamine and Vitamin B3 can be mildly irritating on their own, and more so alongside another active.

Choosing between them instead? Cysteamine vs Vitamin B3 →

Using a third ingredient? Check all three →Or decode a whole product label →
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Cysteamine and Vitamin B3, answered

Can you mix Cysteamine and Vitamin B3?

They're fine together. These two actually work well together, and are often formulated side by side.

Should you use Cysteamine and Vitamin B3 in the morning or at night?

Either. Cysteamine and Vitamin B3 are fine to use together, morning or night.

How should you introduce Cysteamine and Vitamin B3?

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 Cysteamine?

Nothing else clashes badly with Cysteamine. 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.