Good Cosmetic Ingredient NOAEL Data SCCS/CIR Reviewed

Lauroyl Sarcosine

INCI: LAUROYL SARCOSINE

CAS Number
97-78-9
Function
Surfactant — cleansing agent, hair conditioning agent
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — CIR reviewed: safe in rinse-off products; safe in leave-on up to 5%; insufficient data to support safety in inhalable products

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
moderate
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

2 study endpoints found for Lauroyl Sarcosine. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.

Endpoint Value Route Species Study Type Source
NOAEL >=2 other oral rat oral REACH
NOEL 30 mg/kg bw/day oral rat oral REACH

Safety Opinions

Official safety assessments from the Scientific Committee on Consumer Safety (SCCS) and Cosmetic Ingredient Review (CIR).

cir
Verdict: safe
NOAEL: 0.006 mg/L (not specified)

the Panel published a safety assessment with the conclusion that 5 fatty acyl sarcosines and 5 sarcosinate salts are safe as used in rinse-off products, safe for use in leave-on products at concentrations of ≤5%, and the data are insufficient to determine the safety for use in products where the fatty acyl sarcosines and

cir
Verdict: safe
NOAEL: 0.006 mg/L (oral)

the Panel published a safety assessment with the conclusion that 5 fatty acyl sarcosines and 5 sarcosinate salts are safe as used in rinse-off products, safe for use in leave-on products at concentrations of ≤5%, and the data are insufficient to determine the safety for use in products where the fatty acyl sarcosines and

Expert Verdict

Secondary amine surfactant with risk of N-nitroso compound formation when combined with nitrosating agents; safe in rinse-off and leave-on products up to 5%, but inhalation safety not established; avoid spray/aerosol formats.

⚠️
Concern Level: Moderate

Frequently Asked Questions

Is Lauroyl Sarcosine safe in cosmetics?

Secondary amine surfactant with risk of N-nitroso compound formation when combined with nitrosating agents; safe in rinse-off and leave-on products up to 5%, but inhalation safety not established; avoid spray/aerosol formats. The EU classifies Lauroyl Sarcosine as "permitted". Safety rating: GOOD. 2 toxicological study endpoint(s) are available in our database. This ingredient has been reviewed by cir.

Is Lauroyl Sarcosine allowed in the EU?

Lauroyl Sarcosine EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Lauroyl Sarcosine do in cosmetics?

Lauroyl Sarcosine functions as: Surfactant — cleansing agent, hair conditioning agent. It is classified as a cosmetic ingredient in our database. CAS number: 97-78-9.

What is the Margin of Safety for Lauroyl Sarcosine?

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.

What is the NOAEL for Lauroyl Sarcosine?

The NOAEL (No Observed Adverse Effect Level) for Lauroyl Sarcosine is >=2 other based on a oral study via oral route in rat. A total of 2 study endpoints are available. Source: REACH.

📱

Is Lauroyl Sarcosine 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 Lauroyl Sarcosine in your formulation.