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
Safe at cosmetic use levels; both arginine and PCA are endogenous NMF constituents.
Frequently Asked Questions
Is Arginine PCA safe in cosmetics?
Safe at cosmetic use levels; both arginine and PCA are endogenous NMF constituents. The EU classifies Arginine PCA as "permitted". Safety rating: EXCELLENT.
Is Arginine PCA allowed in the EU?
Arginine PCA EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Arginine PCA do in cosmetics?
Arginine PCA functions as: Humectant, Skin Conditioning, Hair Conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 56265-06-6 / 64855-91-0.
What is the Margin of Safety for Arginine PCA?
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 Arginine PCA compliance across multiple jurisdictions:
Related Ingredients
Is Arginine PCA 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 Arginine PCA in your formulation.