Science
Mechanism of Action
This compound primarily functions as an efficient solvent, facilitating the dissolution of various active and inactive ingredients within cosmetic formulations. It imparts emollient benefits, providing lubricity and contributing to a softer skin texture, analogous to glycerol. With its humectant properties, Ethyl Hexanediol attracts and retains moisture, thereby improving skin hydration. Furthermore, it significantly enhances microbiological stability by inhibiting the growth of bacteria and fungi, acting as a preservative booster and allowing for a reduced load of traditional antimicrobial agents. It also serves as an effective blending and coupling agent, stabilizing otherwise immiscible oil-water systems.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Clinical studies indicate that undiluted Ethyl Hexanediol exhibits weak irritant and sensitizing properties. The CIR Expert Panel has determined its safety for use in cosmetic formulations at concentrations up to 5%.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Ethyl Hexanediol is soluble in water (4.2 wt% at 20°C), alcohol, and ether, with good compatibility with aliphatic hydrocarbons. A 4% aqueous solution has a pH of 6.1. Low temperatures can lead to increased viscosity, while elevated temperatures may impact color and odor. For optimal stability, storage under a nitrogen atmosphere is recommended, and it should be incorporated into formulations during the cool-down phase, specifically below 40°C.
Synergies
- Preservatives (enhances efficacy)
- Oil-water systems (as a blending and coupling agent)
Conflicts
- Strong oxidizing agents
Safety
Safety Profile
The CIR Expert Panel concluded that Ethyl Hexanediol is safe for cosmetic application at concentrations up to 5%. While undiluted, it was observed to be a weak irritant and sensitizer, it is absorbed through the skin, metabolized, and subsequently eliminated renally. Direct contact may induce eye irritation. It is important to note that higher concentrations of this compound are utilized as an insect repellent.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Ethyl Hexanediol is a valuable multi-functional ingredient that enhances formulation stability, improves skin hydration and texture, and boosts preservative efficacy within established safe concentrations of up to 5%.
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