10-Hydroxydecanoic Acid
molecular structure · PubChem
AKA: 1679-53-4, 10-hydroxycapric acid, 10-hydroxy-decanoic acid, CHEBI:17409, 10HDA CPD
Synthetic
Skin Conditioner
Acid
Clean
10-hydroxycapric acid is a 10-carbon, -hydroxy fatty acid, shown to be the preferred hydroxylation product (together with the 9-OH isomer) of capric acid in biosystems, and used as a standard in lipid assays; reported to have cytotoxic effects. It is an omega-hydroxy-medium-chain fatty acid and a straight-chain saturated fatty acid. It is functionally related to a decanoic acid. It is a conjugate acid of a 10-hydroxycaprate.
Formula
C10H20O3
Mol. Weight
188.26
CAS #
1679-53-4
Form
Liquid
State
Solid
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.
Locks in moisture
Traditional Use
A synthetic fatty acid derivative developed for modern cosmetics as a humectant and skin conditioning agent. Created to provide enhanced moisturizing and emollient benefits in contemporary skincare formulations.
Skin Types
●all-skin-types, gentle
Best For
Uneven Texture
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