Butylene Glycol
Also known as 1,3-Butanediol
INCI: BUTYLENE GLYCOL
CAS 107-88-0 EC 203-529-7 (i), 228-532-0 (ii)
A humectant and solvent that helps ingredients penetrate the skin.
Generally Safe
This ingredient has a good safety profile based on available data.
Details
Description
A humectant and solvent that helps ingredients penetrate the skin.
Purpose
Function
Diol humectant and solvent. Attracts water into the stratum corneum. Lighter sensory profile and lower irritation potential than propylene glycol. Used in sensitive-skin formulations.HumectantSolventSkin Conditioning
Profile
Properties
Vegan
Yes
Silicone
Silicone free
Origin
Synthetic
Malassezia
Safe
Fungal Acne
Safe
Reef Safe
Yes
Compliance
Regulatory Status
EU
Permitted
Safety
GOOD
US
Permitted
Absorptionmoderate
Sensitizationlow
MoSnot established
NOAEL3200 mg/kg
ConcernLow
Flags
epa_safer_alternativeifra_fragrancefda_food_additive
Verdict
Preferred diol humectant for sensitive-skin formulations with lighter sensory profile and lower irritation potential compared to propylene glycol. Non-occlusive hygroscopic mechanism with excellent tolerability on sensitive and reactive skin.
US Note
CIR reviewed; considered safe. Preferred over propylene glycol in sensitive-skin formulations due to lower irritation profile. Not comedogenic at standard use levels.
Assessment
Ratings
Reference