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Collagen peptide and citric acid

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

Collagen peptide and citric acid: keep them apart

Keep them apart

Use them at different times of day, applying the acid first and the peptides later, because mixing them together cancels out their benefits. The acid is too sour and breaks down the peptides so they cannot firm your skin. You can easily fix this by using the acid in the morning and the peptides at night.

Collagen peptide products

Citric acid products

Questions and answers

Can you use collagen peptide and citric acid together?

No, you should keep collagen peptide and citric acid apart in your routine because the acidic environment can break down the peptide bonds and reduce their effectiveness. Use them in separate steps or alternate routines instead.

Which goes first, collagen peptide or citric acid?

Keep collagen peptide and citric acid apart in your routine because the acidic environment of citric acid destabilizes peptide bonds. Use them in separate steps or routines, such as separating them into AM and PM.

Are collagen peptide and citric acid good for sensitive skin?

Collagen peptide and citric acid should be kept apart in your routine because the acidic environment of citric acid may destabilize peptide bonds and reduce their bioactivity. Use them in separate steps or routines, such as AM and PM, to protect sensitive skin from irritation.

Research on collagen peptide and citric 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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