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Lactic acid and copper peptide

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Lactic acid and copper peptide: keep them apart

Keep them apart

Use them at different times of day, applying the acid first and the peptide later, because mixing them together causes a clash. The acidic ingredient breaks down the peptide and stops it from working properly. You can change your routine by using the acid in the morning and the peptide at night, or by waiting longer between steps.

Lactic acid products

Copper peptide products

Questions and answers

Can you use lactic acid and copper peptide together?

Keep lactic acid and copper peptide apart in your routine because the low pH of lactic acid can destabilize copper peptide and reduce its bioactivity. Instead, use them in separate steps or different routines like AM and PM.

Which goes first, lactic acid or copper peptide?

Keep lactic acid and copper peptide apart by using them in separate steps or routines, such as applying them in the morning and evening, because the low pH of lactic acid destabilizes copper peptide. The product MEDI-PEEL Extra Super 9 contains both ingredients.

Are lactic acid and copper peptide good for sensitive skin?

No, you should keep lactic acid and copper peptide apart because the low pH of lactic acid can destabilize copper peptide and reduce its bioactivity. If you want to use both, apply them in separate routines, such as using one in the morning and the other at night.

Research on lactic acid and copper peptide

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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