Science
Mechanism of Action
This ingredient functions primarily as a solvent, enabling the dissolution and uniform distribution of other compounds within a product matrix. Additionally, it serves as a fragrance agent, imparting a characteristic fruity aroma to formulations.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 No irritation was observed in an 8-hour closed patch test at an 8% concentration in 25 human subjects, with no sensitization reactions noted in a maximization test.
- 02 Typical concentrations for use range from 0.003% in creams and lotions to 0.05% in soaps and perfumes.
- 03 The highest reported use concentration in a cosmetic formulation is 0.22% (2022 FDA VCRP data).
Transparency
Dusting Analysis
Isoamyl Acetate functions as a liquid solvent and fragrance, therefore it is not associated with 'dusting' in formulations.
The Formula
Formulation
Stability
As an ester, Isoamyl Acetate is prone to hydrolysis when exposed to moisture, strong acids, or strong bases, which can compromise its olfactory properties. Formulations should ideally maintain a neutral pH and minimize water exposure. It exhibits good oxidative stability under standard storage conditions but has a low flashpoint of approximately 25°C, necessitating careful handling and storage away from ignition sources.
Conflicts
- strong oxidizing agents
- strong acids
- alkaline materials
- nitrates
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded Isoamyl Acetate is safe for use in cosmetic products, a finding reaffirmed in 2022 considering its use up to 0.22%. It is approved for use in Europe and holds Generally Recognized As Safe (GRAS) status by FEMA as a flavoring agent. The FDA also approves its use as an indirect food additive, and the EPA found no toxicological concerns for its use as an inert ingredient, including for infants and children.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Isoamyl Acetate is a valuable ingredient, safely employed within its established concentration ranges (up to 0.22%) as both a fragrance and solvent in a variety of cosmetic formulations, demonstrating low risk for irritation or sensitization.
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