Polyquaternium-11
PQ-11Polyquaternium 11Polyquaternium-11
Cationic Polymer
Polyquaternium-11 is a synthetic polymer used in personal care products to help thicken and stabilize lotions and creams. It works by forming a strong network of molecules that helps to keep the product's texture and consistency.
Moderate Concern
Source: EWG Skin Deep
The safety concern with Polyquaternium-11 is related to its potential to cause skin irritation and allergic reactions in some individuals, although it is generally considered safe for use in low concentrations.
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r/laundry
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Defeating the ultimate laundry boss: How I removed "unwashable" polyquat buildup from a white polyester skirt (B&A) aka I<3 FEBU
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Last updated: May 16, 2026