Sodium Methyl Isethionate

INCI: SODIUM METHYL ISETHIONATE

CAS Number
24502-04-5
Function
Surfactant, Cleansing agent
Safety Rating
EXCELLENT

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR assessed isethionate salts as safe in present practices of use when formulated to be non-irritating

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Produced via ethoxylation โ€” check for ethylene oxide residuals; not COSMOS-compliant due to ethoxylation origin

โš ๏ธ
Concern Level: None

Frequently Asked Questions

Is Sodium Methyl Isethionate safe in cosmetics?

Produced via ethoxylation โ€” check for ethylene oxide residuals; not COSMOS-compliant due to ethoxylation origin The EU classifies Sodium Methyl Isethionate as "permitted". Safety rating: EXCELLENT.

Is Sodium Methyl Isethionate allowed in the EU?

Sodium Methyl Isethionate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Sodium Methyl Isethionate do in cosmetics?

Sodium Methyl Isethionate functions as: Surfactant, Cleansing agent. It is classified as a cosmetic ingredient in our database. CAS number: 24502-04-5.

What is the Margin of Safety for Sodium Methyl Isethionate?

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 Sodium Methyl Isethionate 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 Sodium Methyl Isethionate in your formulation.