Ingredient Directory
Low ConcernVegan

Polyquaternium-51

Phosphorylcholine-modified polymer / Lipidure

Safety Notes

Phosphorylcholine polymer mimicking cell membrane lipid; excellent biocompatibility; water retention; non-ionic; low protein adsorption; very low sensitization risk; premium Japanese innovation (Lipidure® by NOF Corporation)

Function & Common Use

Function

Skin Conditioning / Film Former / Biocompatible Polymer

Category

Conditioner

Common In

Premium serums contact lens care skin-mimicking products

Origin

Synthetic (phosphorylcholine-modified polyethylene glycol)

Concentration Limits

India (CDSCO)

No limit

EU Cosmetics Reg.

No limit

Frequently Asked Questions

Is Polyquaternium-51 safe to use in skincare?

Polyquaternium-51 has a Low concern rating from The Clean Sheet. Phosphorylcholine polymer mimicking cell membrane lipid; excellent biocompatibility; water retention; non-ionic; low protein adsorption; very low sensitization risk; premium Japanese innovation (Lipidure® by NOF Corporation)

Is Polyquaternium-51 allowed in India?

Polyquaternium-51 is currently classified as "Permitted" under Indian cosmetics regulations. No concentration limit is specified for India.

What is Polyquaternium-51 used for in cosmetics?

Polyquaternium-51 functions as: Skin Conditioning / Film Former / Biocompatible Polymer. It is commonly found in: Premium serums contact lens care skin-mimicking products.

TCS Assessment
Low Concern
Based on peer-reviewed safety data, regulatory status, and expert review by The Clean Sheet panel.

Regulatory Status

India (CDSCO)
Permitted
EU
Permitted
US FDA
Permitted
Korea (MFDS)
Permitted

Identifiers

CASN/A
ECN/A

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