Azelaic Acid (10%–15%)
Glycolic Acid (AHA)
How to Layer These Actives in Your Routine
Glycolic Acid (AHA)
Apply first to clean, dry skin. Operates at pH 3.2–3.8.
Allows cutaneous acid mantle to equilibrate before the next step.
Azelaic Acid (10%–15%)
Layer over the initial active. Operates at pH 4–5.5.
Biochemical Mechanism & Pharmacology
Azelaic Acid (10%–15%) and Glycolic Acid (AHA) operate via distinct physiological mechanisms without reactive cross-oxidation or competing receptor antagonisms. They can be safely integrated into the same routine when sequenced properly from thinnest to thickest consistency.
Apply Glycolic Acid (AHA) (pH 3.2–3.8, Viscosity Tier 1) first. Wait 1–2 minutes for absorption, then follow with Azelaic Acid (10%–15%).
Recommended 7-Day Routine Blueprint
| Morning (AM) Routine | Evening (Night A) | Evening (Night B) |
|---|---|---|
✓Gentle Cleanser ✓Glycolic Acid (AHA) ✓Broad-Spectrum SPF 50+ | •Glycolic Acid (AHA) •Azelaic Acid (10%–15%) •Barrier Cream | •Glycolic Acid (AHA) •Azelaic Acid (10%–15%) •Barrier Cream |
Obstetric & Pregnancy Safety Summary
View Full Pregnancy Directory →Azelaic Acid (10%–15%) is classified as PERMITTED during pregnancy, while Glycolic Acid (AHA) is classified as CAUTION LOW DOSE under clinical guidelines. Always cross-reference with your physician if expecting.