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Tretinoin and palmitoyl pentapeptide-4

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

Tretinoin and palmitoyl pentapeptide-4: keep them apart

Keep them apart

Use them at different times of day by applying palmitoyl pentapeptide-4 in the morning and tretinoin at night to prevent skin irritation. Both ingredients work hard to firm the skin, but combining them at the same time can cause redness and irritation. To safely get the benefits of both, you can simply use them in separate routines or apply a gentler peptide product.

Tretinoin products

Palmitoyl pentapeptide-4 products

Questions and answers

Can you use tretinoin and palmitoyl pentapeptide-4 together?

It is best to keep tretinoin and palmitoyl pentapeptide-4 apart in your routine because combined stimulation may increase skin irritation. Instead, alternate their usage by applying your retinoid in the evening and peptides in the morning.

Which goes first, tretinoin or palmitoyl pentapeptide-4?

Keep tretinoin and palmitoyl pentapeptide-4 apart in your routine because combined use may increase irritation. Alternate them by applying tretinoin in the evening and palmitoyl pentapeptide-4 in the morning.

Are tretinoin and palmitoyl pentapeptide-4 good for sensitive skin?

Keep tretinoin and palmitoyl pentapeptide-4 apart in your routine, as combined stimulation may increase irritation especially on sensitive skin. Alternate your usage by applying the retinoid in the evening and peptides in the morning.

Research on tretinoin and palmitoyl pentapeptide-4

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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