Lactic Acid (AHA) + Azelaic Acid
Can you use Lactic Acid with Azelaic Acid?
Yes, with care. Lactic Acid and azelaic acid can work together, but build up slowly.
Why
Both are used for acne and uneven tone, and combining two acids can tingle or dry skin.
How to use them together
- Use them at different times of day or on alternating days.
- Moisturize and wear daily sunscreen.
Who should be careful
People with very sensitive skin, rosacea or eczema should patch test new products first.
About the ingredients
Lactic Acid (AHA): A gentler alpha hydroxy acid with a larger molecule than glycolic acid. Exfoliates and helps hydrate. Like all AHAs, it can increase sun sensitivity.
Azelaic Acid: A multitasking acid for acne, rosacea and hyperpigmentation. Usually well tolerated, though it can tingle at first.
FAQ
Can I use Lactic Acid and Azelaic Acid together?
Yes, with care. Lactic Acid and azelaic acid can work together, but build up slowly.
Should I use Lactic Acid or Azelaic Acid in the morning or at night?
Use them at different times of day or on alternating days. Moisturize and wear daily sunscreen.
Who should be careful combining Lactic Acid and Azelaic Acid?
People with very sensitive skin, rosacea or eczema should patch test new products first.
What if my skin gets irritated using Lactic Acid and Azelaic Acid?
Stop the stronger active, keep a gentle cleanser, moisturizer and sunscreen, and reintroduce one product at a time once skin calms down. See a dermatologist if irritation persists.
Sources
Studies and reviews on these ingredients and, where available, on this specific combination.
- Kornhauser A, Coelho SG, Hearing VJ. Applications of hydroxy acids: classification, mechanisms, and photoactivity. Clin Cosmet Investig Dermatol. 2010;3:135-142.
- The multiple uses of azelaic acid in dermatology: mechanism of action, preparations, and potential therapeutic applications. Postepy Dermatol Alergol. 2023.
- Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid (alpha-hydroxy acid) for acne. Cochrane Database Syst Rev. 2020;5:CD011368.
Related combinations
- Can you use Retinol with Azelaic Acid?
- Can you use Vitamin C with Azelaic Acid?
- Can you use Niacinamide with Azelaic Acid?
- Can you use Retinol with Lactic Acid?
- Can you use Tretinoin with Azelaic Acid?
- Can you use Vitamin C with Lactic Acid?
- Can you use Niacinamide with Lactic Acid?
- Can you use Salicylic Acid with Azelaic Acid?