Humectant

Betaine

INCI: BETAINE
CAS 107-43-7 EC 203-490-6
Methanaminium, 1-carboxy-N,N,N-trimethyl-, hydroxide, inner salt
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Methanaminium, 1-carboxy-N,N,N-trimethyl-, hydroxide, inner salt

Purpose

Function

Humectant, skin conditioning, anti-static, viscosity controller
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
EXCELLENT
US
Permitted
EU Max Concentration8.7% (rinse-off)
Absorptionmoderate
Sensitizationnone
MoSadequate
NOAEL5771 mg/kg
ConcernLow
Flags
eu_children_restrictedepa_safer_alternativefda_food_additivejecfa_safe
Verdict

Well-tolerated even at high concentrations with no reproductive or mutagenic concerns; ensure absence of trimethylamine impurities to avoid odor issues.

US Note

Permitted; GRAS for food use (trimethylglycine)

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
107-43-7
EC Number
203-490-6
INCI
BETAINE
Category
Humectant
Updated
Apr 2, 2026