Octanediol
AKA “1, 8-Octanediol, Octane-1, 8-diol, 8-Dihydroxyoctane, UNII-806K32R50Z, ORISTAR OTD, EINECS 211-090-8, NSC-81228, .OMEGA.-OCTANEDIOL, 806K32R50Z
Ingredient
Ingredient Facts
Octanediol
AKA: 1, 8-Octanediol, Octane-1, 8-diol, 8-Dihydroxyoctane, UNII-806K32R50Z, ORISTAR OTD, EINECS 211-090-8, NSC-81228, .OMEGA.-OCTANEDIOL, 806K32R50Z
Ingredient · Plasticiser · EWG: 4
Synthetic
Not Clean
The Panel also concluded that the available data are insufficient to make a determination that ... Octanediol ... is safe under the intended conditions of usein cosmetic formulations.
Formula
C8H18O2
Mol. Weight
146.23
CAS #
629-41-4
Form
Liquid
See origin →
Functions
Plasticiser
Strengthens Barrier
Antioxidant
Moisturizing
Adds flexibility
Traditional Use
Synthetic humectant and preservative booster developed in the mid-20th century. Used in cosmetics to improve hydration and enhance the efficacy of other preservatives.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Moderate Irritant
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR