POLYAMINOPROPYL BIGUANIDE
Is POLYAMINOPROPYL BIGUANIDE safe for seborrheic dermatitis?
Polyaminopropyl Biguanide is context-dependent for seborrheic dermatitis. Its role is preserving the product, and the cosmetic assessment requires formulations that avoid irritation and sensitisation.
The reviewed data do not establish suitability for inhaled exposure, and EU permitted-use conditions exclude applications that expose the lungs by inhalation. This is a scoped restriction, not a prohibition on all cosmetics containing it. No applicable human seb derm or exact-ingredient yeast study was found. Follow intended-use directions and choose a tolerable finished formula.
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What is it?
A quick identity check, separate from the seb derm guidance above.
01 / 05- Material type
- Regulated cosmetic preservative
- Cosmetic function
- Preservative
What is POLYAMINOPROPYL BIGUANIDE used for in skincare?
Polyaminopropyl Biguanide, also identified in the safety assessment as polyhexamethylene biguanide hydrochloride, is listed as a preservative. Its purpose is to help control microbial growth in a cosmetic formula. That function is separate from a treatment claim, and research on antiseptic complexes or medical hydrogels does not establish a seb derm benefit.