Dipropylene Glycol

Dipropylene Glycol 1
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Dipropylene Glycol 2
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AKA: Oxybispropanol, Dipropylenglykol, 4-Oxa-2, 6-heptandiol, EPA Pesticide Chemical Code 068604, Abelia seaweed refining mask, Abelia green tea energy mask, Abelia cucumber soothing mask, Abelia lemon brightening mask
Synthetic
Skin Conditioner
Not Clean
OriginDerived from propylene glycol, a synthetic organic compound produced from petroleum derivatives or glycerin. Synthesized through condensation polymerization of propylene oxide under controlled catalytic conditions.
Thick odorless, colorless liquid. Sinks and mixes with water. (USCG, 1999)
Solubility greater than or equal to 100 mg/mL at 75 °F (NTP, 1992)
Formula
C12H28O6
Mol. Weight
268.35
CAS #
110-98-5, 25265-71-8
State
Thick odorless, colorless liquid. Sinks and mixes with water. (USCG, 1999)
Skin Types
●all-skin-types
Best For
General
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Solvent
Viscosity Controlling
Perfuming
Dissolves other ingredients
Controls product thickness
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
3
CIR
Safe as used
Pregnancy
—
CIR Safety Findings
Not a Sensitizer (CIR report on the ingredient group)
CIR report statement covering this group of ingredients / not tested individually (CIR 193)
Not Phototoxic
Product formulation test found no phototoxicity in the CIR safety assessment (CIR 193)
Eye Irritant in Testing
2 studies / 2 irritating / reactions minimal (CIR 193)
Skin Irritant in Testing
1 study / 1 irritating / reactions mild (CIR 193)
Regulatory Status
USA✔ permitted
CANADA✔ permitted
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR