Good Surfactant NOAEL Data

Cetrimonium Methosulfate

INCI: CETRIMONIUM METHOSULFATE

CAS Number
65060-02-8
Function
Antimicrobial, Antistatic, Hair Conditioning, Emulsifying
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes No CIR review of methosulfate salt specifically. CIR concluded cetrimonium chloride/bromide safe in rinse-off and up to 0.25% in leave-on.

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

8 study endpoints found for Cetrimonium Methosulfate. 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
NOEL ca.100 mg/kg bw/day oral rat oral REACH
NOAEL 10 mg/kg bw/day dermal code:3484 dermal REACH
NOAEL 10 mg/kg bw/day dermal code:3484 dermal REACH
NOAEL ca.113 mg/kg bw/day oral rat oral REACH
NOAEL 113 mg/kg bw/day oral rat oral REACH
NOAEL 45 mg/kg bw/day oral rat oral REACH
NOEL 100 mg/kg bw/day oral rat oral REACH
NOAEL 45 mg/kg bw/day oral rat oral REACH

Expert Verdict

Methosulfate counterion is not explicitly restricted in EU Annexes; prudent assessors apply the same limits as the chloride form (up to 0.25% in leave-on products).

โš ๏ธ
Concern Level: Low

Frequently Asked Questions

Is Cetrimonium Methosulfate safe in cosmetics?

Methosulfate counterion is not explicitly restricted in EU Annexes; prudent assessors apply the same limits as the chloride form (up to 0.25% in leave-on products). The EU classifies Cetrimonium Methosulfate as "permitted". Safety rating: GOOD. 8 toxicological study endpoint(s) are available in our database.

Is Cetrimonium Methosulfate allowed in the EU?

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

What does Cetrimonium Methosulfate do in cosmetics?

Cetrimonium Methosulfate functions as: Antimicrobial, Antistatic, Hair Conditioning, Emulsifying. It is classified as a Surfactant in our database. CAS number: 65060-02-8.

What is the Margin of Safety for Cetrimonium Methosulfate?

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 Cetrimonium Methosulfate?

The NOAEL (No Observed Adverse Effect Level) for Cetrimonium Methosulfate is ca.100 mg/kg bw/day based on a oral study via oral route in rat. A total of 8 study endpoints are available. Source: REACH.

๐Ÿ“ฑ

Is Cetrimonium Methosulfate 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 Cetrimonium Methosulfate in your formulation.