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Polyaminopropyl biguanide

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

Polyaminopropyl biguanide

Polyaminopropyl biguanide leaves skin with no visible changes according to current study findings. This gentle ingredient suits most skin types and typically comes in soothing serums. It layers easily into any thoughtful skincare routine.

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Questions and answers

What does polyaminopropyl biguanide do for the skin?

Polyaminopropyl biguanide is a preservative and antimicrobial agent used in skincare products to prevent microbial contamination and extend shelf life. It helps protect formulations from bacteria and fungi, but is unlikely to provide direct skin benefits.

How do you use polyaminopropyl biguanide?

Polyaminopropyl biguanide is used as a preservative in cosmetics, so you simply use the finished products that contain it according to their regular instructions. Because it is a preservative, you do not apply it on its own or mix it yourself.

Should you use polyaminopropyl biguanide in the morning or at night?

Polyaminopropyl biguanide is a preservative used in cosmetics, and there is no specific time of day required for its use since it is simply part of a finished product's formula.

Can you use polyaminopropyl biguanide every day?

Polyaminopropyl biguanide may be used daily in skincare products. It helps act as a preservative to keep formulas safe for regular use.

Does polyaminopropyl biguanide cause purging or irritation?

Polyaminopropyl biguanide is unlikely to cause purging. However, it may cause skin irritation in some individuals.

Which skin types is polyaminopropyl biguanide best for?

Polyaminopropyl biguanide is used in products like La Roche-Posay Respectissime Waterproof Eye Makeup Remover.

Behind this ingredient guide

Lovi checks every ingredient 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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