Humectant

2-Butanediol

Solvent, humectant, skin conditioning
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Solvent, humectant, skin conditioning

Purpose

Function

Solvent, humectant, skin conditioning
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
GOOD
US
Permitted
Absorptionmoderate
Sensitizationlow
MoSadequate
NOAEL100 mg/kg
ConcernLow
Verdict

No significant concerns at typical cosmetic use levels; structurally distinct from neurotoxic 2,5-hexanediol.

US Note

CIR reviewed (1,2-diols group): safe as used

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

Category
Humectant
Updated
Apr 23, 2026

No registry identifiers available for this ingredient.