ETHYL LAUROYL ARGINATE HCL
Commonly Found In
Overview
ETHYL LAUROYL ARGINATE HCL is a cosmetic ingredient primarily used for ANTI-SEBORRHEIC. It is commonly found in various cosmetic formulations and serves important functions in personal care products.
Also known as: LAE, Ethyl Lauroyl Arginate, E243 (food use)
Key Benefits
Ethyl lauroyl arginate HCl functions as a broad-spectrum antimicrobial preservative in cosmetics. Studies suggest it may help control microbial growth in rinse-off and leave-on formulations at low concentrations.
Skin Compatibility Ratings
Comedogenic Rating
Non-comedogenic; cationic antimicrobial peptide with good surfactant properties at low concentrations.
Source: Rosen 2005; manufacturer safety data
Irritancy Rating
Low irritancy; derived from lauric acid and L-arginine. Generally well-tolerated at cosmetic use levels (0.01β0.2%). GRAS (Generally Recognized as Safe) status for food antimicrobial use supports safety profile.
Source: FDA GRAS status; EFSA 2011 evaluation; CIR safety summary
Typical Use Concentration
Range
0.05β0.4%
Optimal
0.1β0.4%
EU Annex V maximum concentration of 0.4% applies in EU/UK markets.
Works Well With / Avoid
Works Well With
Use With Caution
EU restricts under Annex V (preservative list, max 0.4%). UK post-Brexit restricted. US and Japan permit. Approved food preservative (E243) in EU, making it unusual β permitted in food but restricted in cosmetics.
Commonly Found In
Global Regulation Summary
Overview of current status across major international markets.
Detailed Regional Status
| Region | Status | Max Conc. | Conditions | Source |
|---|---|---|---|---|
| πͺπΊ EU | Banned | - | - | Official β |
| πΊπΈ USA | Allowed | - | - | Official β |
| π―π΅ Japan | Allowed | - | - | Official β |
| π°π· Korea | Unknown | - | - | Official β |
| π¬π§ UK | Restricted | - | Follows EU regulations (III/197 V/58) | Official β |
π Why Regulations Differ
EU Annex V limits this preservative to 0.4% in cosmetics based on safety assessments. It is simultaneously approved as a food preservative (E243) in the EU at higher levels, which is unusual β the cosmetic restriction reflects different exposure and safety considerations.
Regulation Analysis
Regional Agreement
Banned in EU but allowed in USA, Japan.
Category Comparison
There are 13 ingredients in the ANTI-SEBORRHEIC category. 100% are banned in at least one major market.
Strictness Ranking
πΏ Natural Sources
Not found in nature. A synthetic compound derived from natural building blocks: lauric acid (from coconut oil), L-arginine (an amino acid), and ethanol.
π How It's Made
Produced by a multi-step synthesis: L-arginine is esterified with ethanol, then acylated with lauroyl chloride. The resulting compound is converted to its hydrochloride salt.
π Uses in Cosmetics
Used in cosmetic products primarily for anti-seborrheic, hair conditioning, preservative, skin conditioning - miscellaneous.
π¬ Other Applications
Used as a food preservative (E243), in food packaging as an antimicrobial coating, and in pharmaceutical formulations as a broad-spectrum antimicrobial.
π‘ Fun Facts
- β’ It was designed as a 'nature-inspired' antimicrobial β using building blocks from coconut oil and amino acids to create a broad-spectrum preservative
- β’ In food it's known as LAE and approved as a food preservative in the EU (E243) and US β it's one of the few preservatives banned in cosmetics but allowed in food
- β’ It breaks down in the body into natural compounds (lauric acid, arginine, and ethanol), making it very rapidly metabolized
Related Skin Concerns
Data Sources
- β’ EU CosIng database β Annex V/58, III/197
- β’ EFSA opinion on LAE as food additive E243
- β’ FDA cosmetic ingredient database
Last data verification: 2026-04-16
Related Ingredients
BHA
SALICYLIC ACID
CATALASE
SELENIUM SULFIDE
BENZALKONIUM CHLORIDE
BENZYL ALCOHOL
CHLOROPHENE
Learn More
Frequently Asked Questions
Why is ETHYL LAUROYL ARGINATE HCL banned in the EU but allowed in the US?
The EU follows a precautionary principle, banning ETHYL LAUROYL ARGINATE HCL under III/197 V/58 due to potential safety concerns. The US FDA has not found sufficient evidence to prohibit its use, allowing it under different safety assessment standards. This reflects differing regulatory philosophies between the two regions.
Why is ETHYL LAUROYL ARGINATE HCL banned in the EU but allowed in Japan?
The EU prohibits ETHYL LAUROYL ARGINATE HCL (III/197 V/58) based on their strict safety criteria. Japan's Ministry of Health, Labour and Welfare (MHLW) has evaluated the ingredient and permits its use, potentially with different safety data or usage conditions.
What is ETHYL LAUROYL ARGINATE HCL used for in cosmetics?
ETHYL LAUROYL ARGINATE HCL is primarily used for anti-seborrheic in cosmetic products. It also serves as hair conditioning, preservative. The ingredient is commonly found in various cosmetic and personal care products.
Which countries regulate ETHYL LAUROYL ARGINATE HCL?
ETHYL LAUROYL ARGINATE HCL is banned in EU. It has concentration limits or usage restrictions in UK. The ingredient is freely allowed in JP, US.
Are there alternatives to ETHYL LAUROYL ARGINATE HCL?
Due to regulatory restrictions on ETHYL LAUROYL ARGINATE HCL, cosmetic manufacturers often use alternative ingredients with similar functions. For anti-seborrheic, alternatives may include other approved ingredients in the same category. Consult product labels for specific formulations, and look for products compliant with your region's regulations.
Disclaimer
The information on this website is for educational and informational purposes only and is not intended as medical advice. While we strive for accuracy based on official government databases, cosmetic regulations change frequently. Always consult with a qualified professional or refer to the latest official regulatory documents for compliance. We are not responsible for any actions taken based on the information provided here.