Cosmetic Ingredient

Bis-Hydroxyethyl Tromethamine

INCI: BIS-HYDROXYETHYL TROMETHAMINE
CAS Not publicly identified in available databases EC 230-237-7
2-[bis(2-Hydroxyethyl)amino]-2-hydroxymethyl-1,3-propanediol
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

2-[bis(2-Hydroxyethyl)amino]-2-hydroxymethyl-1,3-propanediol

Purpose

Function

Buffering, pH adjustment (tromethamine/TRIS derivative)
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
GOOD
US
Permitted
Absorptionmoderate
Sensitizationlow
MoSnot established
ConcernLow
Verdict

Bis-hydroxyethyl tromethamine is a buffering and pH adjustment agent permitted for cosmetic use with a good safety profile.

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

CAS Number
Not publicly identified in available databases
EC Number
230-237-7
INCI
BIS-HYDROXYETHYL TROMETHAMINE
Category
Cosmetic Ingredient
Updated
Apr 2, 2026