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Vitamin C and copper complex

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

Vitamin C and copper complex: keep them apart

Keep them apart

Apply vitamin C in the morning and copper peptides at night, because mixing them makes both ingredients less effective. Copper reacts with vitamin C and causes it to break down before it can brighten the skin. You can easily fix this by using them at different times of the day.

Microneedle-Mediated Delivery of Copper Peptide Through Skin

Vitamin C products

Copper complex products

Questions and answers

Can you use vitamin C and copper complex together?

You should keep vitamin C and copper complex apart and use them in separate routines because copper acts as an oxidation catalyst that reduces peptide efficacy and oxidizes ascorbate.

Which goes first, vitamin C or copper complex?

Keep vitamin C and copper complex apart by using them in separate routines because copper causes vitamin C to oxidize and lowers peptide effectiveness.

Are vitamin C and copper complex good for sensitive skin?

Keep vitamin C and copper complex apart in your skincare routine because copper can oxidize vitamin C and reduce its effectiveness. This combination is especially important to avoid for sensitive skin types.

Research on vitamin C and copper complex

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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