Hair Conditioning
POLYQUATERNIUM-74
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A cationic (positively charged) conditioning polymer in the polyquaternium family. Makes hair smoother and easier to comb; well tolerated in rinse-off.
Polyquaternium-74 is one of many INCI-numbered cationic polymers used to condition hair and skin by electrostatic binding to negatively charged surfaces. Specific chemistry is proprietary per supplier. Polyquats as a class have generally favourable safety: low dermal absorption, minimal systemic exposure, and broad CIR coverage for other members of the family. Ocular irritation can occur at concentrated levels, which is why most polyquats are used in rinse-off formats. Aquatic toxicity is an environmental-end-of-life concern for the class.
Function
Skin benefits
- Cationic conditioning polymer — smoother hair feel
- Reduces static and improves wet combing
- Rinse-off friendly
Known concerns
- Quaternary ammonium polymers can irritate eyes and mucous membranes
- Limited published toxicology
- Aquatic-toxicity considerations at wastewater level
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related hair conditionings
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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.