# Polyaminopropyl biguanide Page: https://lovi.care/skincare/sg/ingredients/polyaminopropyl-biguanide The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for Singapore. 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](https://lovi.care/skincare/sg/ingredients/serum). It layers easily into any thoughtful skincare routine. This page shows polyaminopropyl biguanide products with a Lovi page. For every product, and a routine built for your skin, use the Lovi app. ### Popular polyaminopropyl biguanide products - [La Roche-Posay Respectissime Waterproof Eye Makeup Remover](https://lovi.care/skincare/sg/p/la-roche-posay/respectissime-waterproof-eye-makeup-remover/for/dry-skin) — High fit ## 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. ## Brands with polyaminopropyl biguanide - French skincare: [La Roche-Posay](https://lovi.care/skincare/sg/brands/la-roche-posay) ## About the Lovi Fit Lovi: Unbiased, science-based skincare AI trained on real user outcomes. Lovi checks every ingredient with brand-independent rules its 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. Levels from best to worst: Superior, High, Average, Low, Caution, Warning. Behind this ingredient guide: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board). Page built Nov 8, 2026. More from Lovi: https://lovi.care/skincare/llms.txt ## This page in other countries - United States: https://lovi.care/skincare/ingredients/polyaminopropyl-biguanide - United Kingdom: https://lovi.care/skincare/uk/ingredients/polyaminopropyl-biguanide - Ireland: https://lovi.care/skincare/ie/ingredients/polyaminopropyl-biguanide - Germany: https://lovi.care/skincare/de/ingredients/polyaminopropyl-biguanide - France: https://lovi.care/skincare/fr/ingredients/polyaminopropyl-biguanide - Italy: https://lovi.care/skincare/it/ingredients/polyaminopropyl-biguanide - Netherlands: https://lovi.care/skincare/nl/ingredients/polyaminopropyl-biguanide - Spain: https://lovi.care/skincare/es/ingredients/polyaminopropyl-biguanide - Canada: https://lovi.care/skincare/ca/ingredients/polyaminopropyl-biguanide - Australia: https://lovi.care/skincare/au/ingredients/polyaminopropyl-biguanide - Singapore: https://lovi.care/skincare/sg/ingredients/polyaminopropyl-biguanide (this page) - Saudi Arabia: https://lovi.care/skincare/sa/ingredients/polyaminopropyl-biguanide - United Arab Emirates: https://lovi.care/skincare/ae/ingredients/polyaminopropyl-biguanide