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Tretinoin and lactic acid

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

Tretinoin and lactic acid: keep them apart

Keep them apart

Use them on alternate nights because combining them causes irritation. Both ingredients increase cell turnover, which can make skin red and peel when used together. The shopper can use a gentler strength or leave more time between applications.

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Tretinoin products

Lactic acid products

Questions and answers

Can you use tretinoin and lactic acid together?

No, you should keep tretinoin and lactic acid apart because combining them may cause irritation or barrier disruption. Instead, use lactic acid in the morning or on alternate evenings and tretinoin on your other nights.

Which goes first, tretinoin or lactic acid?

Keep tretinoin and lactic acid apart by using them on alternate evenings to help avoid irritation and barrier disruption.

Are tretinoin and lactic acid good for sensitive skin?

Tretinoin and lactic acid are not recommended for direct overlap on sensitive skin because combining them may cause irritation or barrier disruption. Instead, alternate their use by applying lactic acid in the morning or on separate evenings from tretinoin.

Research on tretinoin 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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