Film Former
POLYQUATERNIUM-37
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
Polyquaternium-37 — a cationic conditioning polymer used to thicken creams and give a silky, soft after-feel. Widely used in lotions and conditioners; tolerated well at cosmetic levels with no notable safety flags.
Skin benefits
- Cationic conditioning film softens hair and skin
- Thickens and stabilises emulsions
- Detangling and anti-static action in haircare
Known concerns
- Mild eye irritation possible at higher use levels
- Limited literature on long-term skin exposure
- Cationic polymers can build up on hair
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related film formers
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.