Common Name(s): Isostearoyloxy ethylhexylbutyramide,branched amide-ester emollient
DESCRIPTION
What It Does: Provides a non-greasy, film-forming emollient with long-wear properties from the branched amide-ester structure.
Why It's Used: Branched isostearoyl (c18) ester plus ethylhexyl (c8 branched) butyramide group; dual branching creates an ultra-lightweight film former with non-greasy, long-wear emolliency.
How It Works: Branched isostearoyl prevents crystallization; ethylhexyl branching adds fast spreading; butyramide provides film-forming stability; combined creates long-wear non-greasy emolliency.
Typically Found In: Long-wear color cosmetics,lightweight skin serums
TECHNICAL DETAILS
Primary Category: Functional ingredient – emollient
Secondary Functions: Film forming,skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5%–5%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Synthetic specialty amide-ester.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – low
Sensitivity Concerns: Generally well tolerated.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Good safety profile. ewg score: 1.
Works Well With: Other emollients,film formers
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
The combination of isostearyl branching and ethylhexyl branching in this amide-ester creates one of the most lightweight, non-greasy emollient structures available; the amide bond provides excellent ph and hydrolytic stability.
Last Verified: 2026-03-28
Primary Sources: Cosing database,inci dictionary