Polyquaternium-91

  • Hair Conditioning

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About Polyquaternium-91

Polyquaternium-91 is a surface-active ingredient that works at the interface between water and oil.[1] The number 91 after Polyquaternium is only an identification number distinguishing different Polyquaterniums; it does not indicate the content or molecular size. Its positively charged portions are used to reduce static in hair and leave a thin film. In cosmetics, it is used to form a thin film on the skin, hair, and nail surfaces after application and to reduce tangling and rough texture in hair for a smoother finish.[1]

Polyquaternium-91 Details

Ingredient function
Film Forming, Hair Conditioning
Main product categories
Moisturizing/Nourishing Conditioner
INCI name
POLYQUATERNIUM-91
CosIng ID
85409

Polyquaternium-91 References

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This ingredient information is based on publicly available scientific literature, cosmetic ingredient databases, and regulatory sources from various countries. Usage restrictions, permitted concentrations, and labeling requirements may vary by country, region, and product type.

Ingredient preference is a reference metric based on user review data. It does not indicate the efficacy or safety of the ingredient itself.