Common Name(s): Cosmacol emi,neopentyl glycol dicaprylate/dicaprate
CAS Number: 31007-86-0
DESCRIPTION
What It Does: Provides dry, non-greasy ester emolliency with excellent oxidative stability for elegant lightweight formulations.
Why It's Used: Premium dry-touch ester emollient for elegant moisturisers and sunscreens requiring superior skin feel with maximum formulation stability.
How It Works: Neopentyl glycol (branched diol) + heptanoic acid esters provide very dry, light skin feel from compact branched structure. excellent oxidative stability from saturated ester bonds. good uv filter compatibility. excellent skin feel from low surface tension and small molecular footprint.
Typically Found In: Sunscreens,dry-touch moisturisers,foundation
TECHNICAL DETAILS
Primary Category: Functional ingredient โ synthetic ester emollient
Secondary Functions: Barrier sealing,softening
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%โ20%
SOURCING & ETHICS
Vegan Status: Conditional - supplier confirmation required
Halal Status: Unverified - supplier confirmation required
Source Notes: Plant-derived, synthetic or animal-derived. verify source. [audit 2026-07-29 rev2: the record's own source_notes does not assert a non-animal origin, or instructs the reader to verify with the supplier; "yes" asserts knowledge the record does not hold. determination requires shariah-panel sign-off.]
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 1/5 โ low; formulation-dependent
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Neopentyl glycol diheptanoate's uniquely dry skin feel arises from the combination of the neopentyl glycol's compact, symmetric branched structure and the c7 heptanoate chain length. the neo-pentyl (2,2-dimethyl-1,3-propanediol) core's 3d branching prevents molecular alignment on the skin surface, limiting film formation and providing the minimal-residue dry feel that makes it preferred for premium sunscreen formulations.
Last Verified: 2026-03-12
Primary Sources: Cosing database,cir safety assessment