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
Skin Conditioning / Film Former / Biocompatible Polymer
Conditioner
Premium serums contact lens care skin-mimicking products
Synthetic (phosphorylcholine-modified polyethylene glycol)
Concentration Limits
No limit
No limit
No specific 21 CFR cosmetic limit identified in source checked
No specific MFDS limit identified in source checked; verify if ingredient is used in a Korean functional cosmetic category
Pregnancy: No specific restriction identified in source checked; standard cosmetic use
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.
Regulatory Status
Identifiers
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