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Azelaic acid and lactic acid

Rated by Lovi · Unbiased, science-based skincare AI trained on real user outcomes · How the Fit score works

Azelaic acid and lactic acid: keep them apart

Keep them apart

Use them on alternate nights to avoid over-exfoliating your skin. Combining these two strong acids can cause redness, irritation, and dryness. You can switch to a gentler strength or space them out by using them on different days.

Azelaic acid products

Lactic acid products

Questions and answers

Can you use azelaic acid and lactic acid together?

Keep azelaic acid and lactic acid apart in your routine, as combining them may cause over-exfoliation and inflammation. Instead, use them on alternate days.

Which goes first, azelaic acid or lactic acid?

Keep azelaic acid and lactic acid apart by alternating their use in your routine to avoid over-exfoliation and inflammation. Products such as MZ Skin Radiance & Renewal Instant Clarity Refining Mask, Farmacy Brighten Up 3% TXA, and Dr. Sebagh Deep Exfoliating Mask contain both ingredients, so they should be used separately.

Are azelaic acid and lactic acid good for sensitive skin?

Azelaic acid and lactic acid should be kept apart in your routine, as combining them may lead to over-exfoliation and inflammation, especially on sensitive skin. You can alternate their use on different days.

Research on azelaic acid and lactic acid

Behind this pairing advice

Lovi checks every pairing with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.

  • Nadia Kapleva, MS

    Nadia Kapleva, MS

    Co-founder, Medical Director

    Cosmetic chemist, cosmetologist, aesthetic products developer

  • Alexey Shagraev, PhD

    Alexey Shagraev, PhD

    Co-founder, CEO and CTO

    PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex

  • Dr. Sofía Perea Pérez, MD, MSc

    Dr. Sofía Perea Pérez, MD, MSc

    Medical Board

    Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine

  • Aishani Shah, MD

    Aishani Shah, MD

    Medical Board

    Specialist dermatologist, MBBS, MD, IFAAD

  • Asya Zubkova, MS

    Asya Zubkova, MS

    Medical Board

    Cosmetic chemist, SCS, IFSCC member

  • Hanna Kurets, MD

    Hanna Kurets, MD

    Medical Board, Medical Advisor

    Dermatology MD

  • Elina Nazarenko, MD

    Elina Nazarenko, MD

    Medical Board

    Dermatology and diagnostic consultant

  • Victoria Derkova, MS

    Victoria Derkova, MS

    Medical Board

    Cosmetic chemist, cosmetic development technologist

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