Heptylundecyl Hydroxystearate

AKA: Salacos OSIS, 2-Heptylundecyl 12-hydroxystearate, 2-Heptylundecyl 12-hydroxyoctadecanoate, Octadecanoic acid, 2-heptylundecyl ester
Plant-Derived
Emollient
Skin Conditioner
Not Clean
2-Heptylundecyl 12-hydroxyoctadecanoate
Formula
C36H72O3
Mol. Weight
553.00
CAS #
74659-69-1
Form
Liquid
Functions
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
A modern synthetic ester developed in the late 20th century for use as an emollient and conditioning agent. It was formulated to provide skin-feel benefits similar to natural oils while offering improved stability and texture.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
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