Ammonium Lauryl Sulfate

INCI: AMMONIUM LAURYL SULFATE

CAS Number
2235-54-3
Function
Surfactant, Cleansing, Foaming
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
EU Max Conc. 16%
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes No specific FDA restriction. CIR Expert Panel assessed safe in 1983 and reaffirmed in 2005 for rinse-off formulations. Not listed on FDA prohibited or restricted ingredients list.

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

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Safe, well-established anionic surfactant assessed by CIR in 1983 and reaffirmed in 2005 for rinse-off cosmetic use. Primary concern is concentration-dependent irritation: non-irritating below 1%, moderate to strong irritant above 10%. Milder ammonium salt form preferred over sodium lauryl sulfate for sensitive-skin formulations. EU permits up to 16% per SCCS guidance; limit to 1% or less in leave-on or prolonged-contact products. Not a sensitizer, not carcinogenic, and not phototoxic.

โš ๏ธ
Concern Level: Low

Regulatory Flags

rinse-off-preferred concentration-dependent-irritant avoid-high-concentration-leave-on CIR-assessed anionic-surfactant milder-than-SLS non-sensitizing epa_safer_alternative

Frequently Asked Questions

Is Ammonium Lauryl Sulfate safe in cosmetics?

Safe, well-established anionic surfactant assessed by CIR in 1983 and reaffirmed in 2005 for rinse-off cosmetic use. Primary concern is concentration-dependent irritation: non-irritating below 1%, moderate to strong irritant above 10%. Milder ammonium salt form preferred over sodium lauryl sulfate for sensitive-skin formulations. EU permits up to 16% per SCCS guidance; limit to 1% or less in leave-on or prolonged-contact products. Not a sensitizer, not carcinogenic, and not phototoxic. The EU classifies Ammonium Lauryl Sulfate as "permitted". Safety rating: GOOD.

Is Ammonium Lauryl Sulfate allowed in the EU?

Ammonium Lauryl Sulfate EU regulatory status: permitted. Maximum allowed concentration: 16%. This is based on EU Regulation 1223/2009 and its amendments.

What does Ammonium Lauryl Sulfate do in cosmetics?

Ammonium Lauryl Sulfate functions as: Surfactant, Cleansing, Foaming. It is classified as a cosmetic ingredient in our database. CAS number: 2235-54-3.

What is the Margin of Safety for Ammonium Lauryl Sulfate?

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.

๐Ÿ“ฑ

Is Ammonium Lauryl Sulfate in Your Products?

Scan any product label with Piro โ€” our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free โ†’

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Ammonium Lauryl Sulfate in your formulation.