Science
Mechanism of Action
This ingredient functions by creating a protective, semi-occlusive hydrophobic film on the skin's surface. This barrier effectively minimizes trans-epidermal water loss, leading to increased skin hydration and a smoother, softer feel. It also acts as a texture enhancer, providing superior spreadability and a desirable dry-touch, non-greasy finish, while research suggests it may enhance the dermal penetration of other active compounds.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Isononyl Isononanoate exhibits excellent stability under normal conditions, resisting oxidation and hydrolysis for prolonged shelf-life. It maintains a neutral odor. While generally robust, decomposition may occur under extreme heat or in the presence of highly reactive chemicals.
Conflicts
- Formulators should exercise caution when combining Isononyl Isononanoate with ingredients whose increased dermal absorption could be undesirable, as this compound may enhance skin penetration.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed Isononyl Isononanoate's safety for use in cosmetic products at current concentrations, typically ranging from 2% to 10%. Extensive studies confirm it is neither genotoxic nor a dermal irritant or sensitizer. Its derivative, nonanoic acid (Pelargonic Acid), is also recognized by the FDA as a permitted direct food additive. However, its capacity to increase the dermal penetration of other ingredients warrants careful consideration in formulation design.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Isononyl Isononanoate is a valuable emollient and texture-enhancing ingredient, offering superior skin feel, hydration, and product spreadability with an established safety profile across all skin types.
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