Ethylparaben

Product Description

Ethylparaben is a highly effective, globally approved preservative used to safeguard cosmetic and personal care products from microbial contamination. Within the paraben family, Ethylparaben offers a unique balance between water solubility and lipophilicity, making it exceptionally versatile for protecting the oil-water interface in emulsions. Manufactured under strict quality standards, our Ethylparaben provides robust defense against bacteria, yeasts, and molds. It is a commercially vital component for B2B formulators seeking a stable, non-reactive, and cost-effective solution to ensure the long-term integrity and safety of premium skincare and makeup formulations.

Product Specification

• INCI Name: Ethylparaben
• CAS No.: 120-47-8
• Chemical Name: Ethyl 4-hydroxybenzoate
• Product Type: Broad-Spectrum Preservative
• Appearance: White crystalline powder
• Purity (Assay): ≥ 99.0%
• Melting Point: 115.0°C – 118.0°C
• Solubility: Soluble in ethanol and propylene glycol; slightly soluble in water.

Key Benefits & Applications

• Optimized Partitioning: Better oil-phase affinity than methylparaben, ensuring concentrated protection at the emulsified boundaries where microbes often proliferate.
• Broad-Spectrum Efficacy: Actively inhibits the growth of a wide variety of microorganisms, preventing product spoilage and odor changes.
• High Chemical Inertness: Extremely stable across different processing temperatures and compatible with most active ingredients, sunscreens, and pigments.
• Low Irritation Profile: Recognized for its long history of safe use and low sensitization potential in leave-on and rinse-off applications.
• Applications: Essential for moisturizing creams, sun care lotions, liquid foundations, anti-aging serums, and hair conditioners.

Formulation Guidelines

• Suggested Dosage: 0.1% – 0.4% (Regulatory limits apply; typically total parabens should not exceed 0.8% in finished products).
• pH Stability: Maintains maximum antimicrobial activity within a pH range of 3.0 – 8.0.
• Processing: It is recommended to dissolve Ethylparaben in the oil phase during heating or pre-dissolve it in a glycol (e.g., Propylene Glycol) before adding to the water phase.
• Compatibility: Use with caution in formulas containing high levels of non-ionic surfactants (like Polysorbate 80), as they may reduce preservative availability through micellar encapsulation.
• Synergy: Combine with Methylparaben to create a multi-layer preservative shield that provides comprehensive protection for both the water and oil phases of emulsions.