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Carnosine and lactic acid

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

Carnosine and lactic acid: keep them apart

Keep them apart

Use them on alternate nights, with lactic acid first and carnosine second, because acid ruins the firming protein. Lactic acid destroys the peptide's ability to firm and smooth your skin. You can switch to a gentler acid or use them on different days.

Carnosine products

Lactic acid products

Questions and answers

Can you use carnosine and lactic acid together?

No, you should keep carnosine and lactic acid apart in your routine because the acidic environment of lactic acid may destabilize carnosine and reduce its effectiveness.

Which goes first, carnosine or lactic acid?

Keep carnosine and lactic acid apart because the low pH of lactic acid destabilizes peptides like carnosine and reduces their bioactivity. Use them in separate routines to avoid irritation and protect your skin barrier.

Are carnosine and lactic acid good for sensitive skin?

Keep carnosine and lactic acid apart in your routine because the acidic environment of lactic acid may destabilize carnosine and reduce its effectiveness. Lovi rates this combination as low compatibility for sensitive skin.

Research on carnosine 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. Sof铆a Perea P茅rez, MD, MSc

    Dr. Sof铆a Perea P茅rez, 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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