How to use them
Use them in the same routine morning or night. Apply Zinc PCA first, then Azelaic Acid, moving from thinnest to thickest texture. Finish with sunscreen in the morning.
- 1CleanseGentle cleanser, pat dry
- 2Zinc PCA1%, wait about 1 minute
- 3Azelaic Acid10% – 20%
- 4Moisturiserseal everything in
What Azelaic Acid does
A multitasker that treats acne, rosacea redness and pigmentation at the same time. It is widely considered safe in pregnancy, so it is a common swap for retinoids.
- Typical strength
- 10% – 20%
- When
- AM/PM
- Irritation
- Best for
- Sensitive, Oily, Combination And Normal skin
Everything that pairs with Azelaic Acid →
What Zinc PCA does
Zinc salts help regulate sebum and have mild anti-inflammatory and antibacterial effects. That is why zinc so often appears next to niacinamide in oil-control serums.
- Typical strength
- 1%
- When
- AM/PM
- Irritation
- Best for
- Oily And Combination skin
Everything that pairs with Zinc PCA →
Trying to choose one? Read Azelaic Acid vs Zinc PCA: which is better for your skin.
Frequently asked questions
Can I use Azelaic Acid and Zinc PCA together?
Yes, it is safe. There is no known chemical conflict between Azelaic Acid and Zinc PCA, and neither makes the other less effective. They share a goal (acne), so together they reinforce each other.
Which goes first, Azelaic Acid or Zinc PCA?
Apply Zinc PCA first, then Azelaic Acid. The general rule is thinnest to thickest texture, and lowest pH first.
Should I use Azelaic Acid in the morning or at night?
Azelaic Acid: works morning or night. Apply once or twice daily. A mild tingle in the first week is normal.
Should I use Zinc PCA in the morning or at night?
Zinc PCA: works morning or night. Use once or twice daily. It works best as part of a niacinamide or oil-control serum.