How to use them
Use them in the same routine at night. Apply Glycolic Acid first, then Azelaic Acid, moving from thinnest to thickest texture.
- 1CleanseGentle cleanser, pat dry
- 2Glycolic Acid5% – 10%, 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 Glycolic Acid does
The smallest alpha-hydroxy acid, so it penetrates deepest. It dissolves the bonds between dead skin cells for smoother, brighter skin and fades marks, but it is the AHA most likely to sting.
- Typical strength
- 5% – 10%
- When
- PM
- Irritation
- Best for
- Normal, Oily And Combination skin
Everything that pairs with Glycolic Acid →
Trying to choose one? Read Azelaic Acid vs Glycolic Acid: which is better for your skin.
Frequently asked questions
Can I use Azelaic Acid and Glycolic Acid together?
Yes, it is safe. There is no known chemical conflict between Azelaic Acid and Glycolic Acid, and neither makes the other less effective. They share a goal (pigmentation), so together they reinforce each other.
Which goes first, Azelaic Acid or Glycolic Acid?
Apply Glycolic Acid 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 Glycolic Acid in the morning or at night?
Glycolic Acid: best at night. Use 2–3 nights a week after cleansing. Skip it on nights you use retinoids. Sunscreen is non-negotiable because AHAs raise sun sensitivity.