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
Essentially nontoxic by all routes tested. Nonirritating to slightly irritating to skin at concentrations up to 100%. No mutagenic activity demonstrated. No reproductive or developmental effects.
Frequently Asked Questions
Is Hydroxypropylcellulose safe in cosmetics?
Essentially nontoxic by all routes tested. Nonirritating to slightly irritating to skin at concentrations up to 100%. No mutagenic activity demonstrated. No reproductive or developmental effects. The EU classifies Hydroxypropylcellulose as "permitted". Safety rating: EXCELLENT.
Is Hydroxypropylcellulose allowed in the EU?
Hydroxypropylcellulose EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Hydroxypropylcellulose do in cosmetics?
Hydroxypropylcellulose functions as: Binding, emulsifying, emulsion stabilising, film forming, viscosity increasing. It is classified as a cosmetic ingredient in our database. CAS number: 9004-64-2 [^1_3].
What is the Margin of Safety for Hydroxypropylcellulose?
adequate 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 Hydroxypropylcellulose compliance across multiple jurisdictions:
Related Ingredients
Is Hydroxypropylcellulose 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 Hydroxypropylcellulose in your formulation.