Humectant

2 Propanediol

Humectant; solvent; antimicrobial contributor; water activity reduction agent; self-preservation contributor
Limited Data
Insufficient safety data available. Consider enriching this ingredient.
Details

Description

Humectant; solvent; antimicrobial contributor; water activity reduction agent; self-preservation contributor

Purpose

Function

Humectant; solvent; antimicrobial contributor; water activity reduction agent; self-preservation contributor
Profile

Properties

Silicone
Silicone free
Compliance

Regulatory Status

EU
Permitted
Safety
EXCELLENT
US
Permitted
Absorptionnegligible
Sensitizationnone
MoSadequate
NOAEL1000 mg/kg
ConcernNone
Verdict

Propanediol (CAS 504-63-2) is permitted without restriction under EU Cosmetics Regulation 1223/2009 and holds FDA GRAS status (GRN No. 302, 2009), with a wide margin of safety for cosmetic use up to 39.9%, minimal dermal absorption (0.12% at 48h), and a clean sensitization profile.

US Note

FDA GRAS status confirmed via GRN No. 302 (September 7, 2009) for food use; no cosmetic-specific restrictions under FD&C Act. Not an OTC monograph ingredient. Fully permitted for cosmetic use without limitation.

Assessment

Ratings

Comedogenic0/5
LowHigh
Irritancy0/5
LowHigh
Reference

Identifiers

Category
Humectant
Updated
Apr 23, 2026

No registry identifiers available for this ingredient.