Choleth-24

AKA: 27321-96-6, 2-[[10, 13-dimethyl-17-(6-methylheptan-2-yl)-2, 3, 7, 8, 9, 11, 12, 14, 15, 16, 17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]ethanol, 30788-35-3, 2-(Cholest-5-en-3-yloxy)ethanol
Synthetic
Cleanser
Emulsifier
Plant Oil
Clean
(3beta)-Cholest-5-en-3-ol, ethoxylated (24 mol EO average molar ratio)
Formula
C29H50O2
Mol. Weight
430.70
CAS #
27321-96-6
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Cleansing Surfactant
Emulsifier
Brightens Skin
Removes Impurities
Mixes Oil & Water
Traditional Use
A synthetic compound created by polyethoxylating cholesterol in the mid-20th century. Developed as an emulsifier and solubilizer to improve texture and stability in skincare formulations.
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-2
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR