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Salicylic acid and hexapeptide-9

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

Salicylic acid and hexapeptide-9: keep them apart

Keep them apart

Use them at different times of day, applying salicylic acid first and hexapeptide-9 later, because the acid is too strong for the peptide. Salicylic acid ruins the helpful skin-firming power of hexapeptide-9 when they touch. The shopper can use the acid in the morning and the peptide at night.

Salicylic acid products

Hexapeptide-9 products

Questions and answers

Can you use salicylic acid and hexapeptide-9 together?

No, you should keep salicylic acid and hexapeptide-9 apart because the acidic environment of salicylic acid breaks peptide bonds and reduces their bioactivity. Use them in separate steps or routines instead.

Which goes first, salicylic acid or hexapeptide-9?

Keep salicylic acid and hexapeptide-9 apart because the acidic environment of salicylic acid may break peptide bonds and reduce hexapeptide-9 activity. Use them in separate steps or routines, such as AM and PM separation.

Are salicylic acid and hexapeptide-9 good for sensitive skin?

Salicylic acid and hexapeptide-9 should be kept apart in your routine because the acidic environment of salicylic acid may break down peptide bonds and reduce their effectiveness. You can use them separately by applying them at different times of day.

Research on salicylic acid and hexapeptide-9

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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