Emollient
PROPANEDIOL DIISOSTEARATE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A diester of propanediol with isostearic acid — a soft, cushioning emollient from largely plant-derived feedstocks. Well-tolerated.
Propanediol diisostearate is the diester formed from propanediol (typically corn-derived 1,3-propanediol) and two molecules of isostearic acid. It functions as a non-volatile emollient and consistency factor in lotions, balms, and color cosmetics, providing a cushioning, low-tack feel. The component pieces (1,3-propanediol and isostearic acid esters) both have CIR safety reviews supporting cosmetic use. Non-irritating, no sensitization signals, no CMR or endocrine flags identified at typical use concentrations.
Function
Skin benefits
- Conditions and softens skin
- Improves emulsion texture
- Adds cushioning slip
Known concerns
- Limited compound-specific public data
- May feel heavy on very oily skin
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related emollients
Check your shelf
Find PROPANEDIOL DIISOSTEARATE in your products.
Scan any cosmetic product with LuxSense to see if it contains PROPANEDIOL DIISOSTEARATE and get a full ingredient breakdown with safety scores.
This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.