Octacosanyl Glycol

AKA: Octacosane-1, 2-diol, 1, 2-Octacosanediol, 2-dihydroxyoctacosane, CHEBI:84961
Synthetic
Emollient
Skin Conditioner
Not Clean
1,2-octacosanediol is a glycol that is octacosane bearing two hydroxy substituents located at positions 1 and 2. It is functionally related to an octacosane.
Formula
C28H58O2
Mol. Weight
426.80
CAS #
97338-11-9
Functions
Light Stabilizer
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
Synthetic humectant combining octacosane (a long-chain alkane) with glycol. Developed to provide moisture-binding and skin-conditioning benefits in modern skincare formulations.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Potential Sensitizer
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed1 review
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR