Xylityl Sesquicaprylate
molecular structure · PubChem
AKA: Xylityl 1-caprylate, 181632-90-6, Xylitol, 1-octanoate
Synthetic
Humectant
Preservative
Cleanser
Emulsifier
Skin Conditioner
Not Clean
Xylityl Sesquicaprylate is a mixture of mono- and diesters of Caprylic Acid and the hexitol anhydrides derived from Xylitol.
Formula
C13H26O6
Mol. Weight
278.34
CAS #
181632-90-6
Functions
Antimicrobial
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Deodorant
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
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.
Locks In Moisture
Traditional Use
Developed in the late 20th century as a synthetic emollient derived from xylitol. Designed to provide lightweight hydration and smooth application in skincare and cosmetic formulations.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
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Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR