Isodecylparaben

Product Description

Isodecylparaben is a specialized, long-chain paraben ester designed for formulations requiring extreme lipophilicity and high-performance antimicrobial protection in the oil phase. Due to its extended branched-chain structure, it offers the highest lipid solubility within the paraben family, making it an exceptional choice for anhydrous systems and heavy water-in-oil (W/O) emulsions. Manufactured under stringent quality controls, our Isodecylparaben effectively inhibits the growth of yeasts, molds, and bacteria in complex oil-rich environments where shorter-chain preservatives may fail to provide adequate coverage. This ingredient is a commercially vital asset for premium sunscreens, luxury night creams, and professional color cosmetics.

Product Specification

• INCI Name: Isodecylparaben
• CAS No.: 120530-57-0
• Chemical Name: Isodecyl 4-hydroxybenzoate
• Product Type: High-Lipophilic Preservative
• Appearance: Waxy solid or thick liquid (depending on temperature)
• Purity (Assay): ≥ 98.0%
• Solubility: Highly soluble in cosmetic oils, esters, and non-polar solvents; insoluble in water.
• Thermal Stability: Excellent (Stable during high-heat oil-phase processing).

Key Benefits & Applications

• Extreme Oil-Phase Affinity: Specifically partitions into the oil phase and the oil-water interface, providing targeted protection where lipid-loving microorganisms thrive.
• Enhanced Barrier Protection: Ideal for "water-resistant" and long-wear formulations, as it remains embedded in the oil film and does not easily wash away.
• Powerful Anti-Fungal Profile: Long-chain structure provides enhanced disruption of fungal cell membranes, offering superior protection against molds in high-moisture/high-oil environments.
• Non-Irritating Profile: Large molecular size reduces the potential for skin penetration, making it a suitable choice for high-end protective skincare.
• Applications: Premium anhydrous serums, waterproof sunscreens, stick foundations, heavy barrier creams, and hair waxes.

Formulation Guidelines

• Suggested Dosage: 0.05% – 0.2% (Usage level depends on total lipid content and local regional regulations).
• pH Stability: Maintains maximum efficacy across a broad pH range of 3.5 – 8.0.
• Processing: Incorporate into the oil phase during the heating stage (approx. 70°C - 80°C). Ensure complete homogenization to prevent localized concentration.
• Compatibility: Excellent compatibility with high-HLB emulsifiers and various botanical oils; does not affect the viscosity of the final emulsion.
• Synergy: Combine with Methylparaben to achieve a comprehensive preservative system that shields both the extreme lipophilic oil phase and the vital aqueous phase of complex emulsions.