Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Phosphorylcholine-based polymer structurally similar to PQ-102 with no independent toxicology data.
Frequently Asked Questions
Is Polyquaternium-103 safe in cosmetics?
Phosphorylcholine-based polymer structurally similar to PQ-102 with no independent toxicology data. The EU classifies Polyquaternium-103 as "permitted". Safety rating: MODERATE.
Is Polyquaternium-103 allowed in the EU?
Polyquaternium-103 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Polyquaternium-103 do in cosmetics?
Polyquaternium-103 functions as: Emulsion stabilising, opacifying, viscosity controlling. It is classified as a cosmetic ingredient in our database. CAS number: Not publicly listed in CosIng.
What is the Margin of Safety for Polyquaternium-103?
not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
Check Polyquaternium-103 compliance across multiple jurisdictions:
Related Ingredients
Is Polyquaternium-103 in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Polyquaternium-103 in your formulation.