Isooctyl Palmitate (2-Ethylhexyl Palmitate) – Light Emollient Ester for Skin Conditioning
Basic Information
CAS Number: 29806-73-3
Molecular Formula: C₂₂H₄₄O₂
Molecular Weight: 340.58 g/mol
Synonyms: 2-Ethylhexyl palmitate, Octyl palmitate (common trade name)
Appearance: Clear, colorless to slightly yellowish oily liquid
Odor: Practically odorless
Density: 0.85–0.86 g/cm³ (at 20°C)
Boiling Point: ~351°C (at atmospheric pressure)
Flash Point: ~170°C
Solubility: Insoluble in water; miscible with organic solvents, oils, and esters
Storage: Store in tightly sealed containers at 5–25°C, protected from light and moisture, away from strong oxidizers.
Overview
Isooctyl palmitate (commonly known as 2-ethylhexyl palmitate) is the ester of palmitic acid and 2-ethylhexanol. It is widely used in cosmetic and personal care formulations due to its lightweight, non-greasy feel and excellent skin conditioning properties. It improves product spreadability, enhances the absorption of active ingredients, and leaves a smooth, silky after-feel. Its low comedogenic potential makes it suitable for a wide range of skin types, including sensitive and acne-prone skin.
Applications
Skin care: Creams, lotions, moisturizers, and serums – provides softness and smoothness without oiliness.
Sun care: Enhances the distribution of UV filters and improves water resistance.
Color cosmetics: Foundations, powders, and lip products – improves pigment dispersion and texture.
Hair care: Used in conditioners and styling products for a silky feel.
Pharmaceuticals: As a base and penetration enhancer in topical formulations.
Key Benefits
Light, non-oily skin feel.
Improves spreadability and texture.
Non-comedogenic – safe for sensitive and acne-prone skin.
Enhances active ingredient absorption.
Compatible with a wide range of cosmetic ingredients.
Cost-effective and widely used.
Safety and Handling
Generally regarded as safe for cosmetic use at typical concentrations.
Low irritation potential; rare allergic reactions.
Store in a cool, dry place, away from direct sunlight.
Use appropriate personal protective equipment (gloves, safety goggles) when handling.
Quality Assurance
Each batch is tested for purity, acid value, saponification value, and color to ensure consistent quality.