PEG 40 Hydrogenated Castor Oil

PEG-40 Hydrogenated Castor Oil is a non-ionic surfactant derived from hydrogenated castor oil and ethylene oxide, known for its excellent emulsifying, solubilizing, and dispersing properties. Widely used in cosmetic and personal care formulations, it allows oil-based ingredients (essential oils, fragrances, vitamins) to dissolve uniformly in water-based systems. Its mild nature and water solubility make it ideal for use in clear cleansers, serums, hair products, and sprays.

INCI Name: PEG-40 Hydrogenated Castor Oil

Molecular Formula: C₅₇H₁₁₀O₉ + n(C₂H₄O)

Alternate Names: Polyethylene Glycol 40 Hydrogenated Castor Oil, Cremophor RH 40, Solubilizer 40

Purity of the Ingredient: 99%

Country of Origin: India

Benefits and Uses

• Solubilizes essential oils and fragrance oils in water-based products
• Acts as an emulsifier in oil-in-water systems
• Helps stabilize formulations and prevent separation
• Used in micellar water, facial cleansers, shampoos, and perfumes
• Provides mild cleansing and conditioning without drying
• Non-comedogenic and skin-safe for most applications

How it Works

• Acts as a co-surfactant, reducing surface tension and allowing oil to disperse in water
• Forms micelles that encapsulate oil, dirt, or fragrance for even distribution
• Enhances clarity and texture in aqueous systems
• Supports emulsification by bridging oil and water phases

pH and Ideal Temperature Range for Best Use

• Optimal pH Range: 4.5 – 7.5
• Ideal Processing Temperature: 20°C – 45°C (Avoid overheating above 60°C to maintain stability)

How to Use PEG-40 Hydrogenated Castor Oil

• Use 1–5% as a solubilizer for essential/fragrance oils in sprays and toners
• Mix the oil phase and PEG-40 separately, then slowly blend them into the water with stirring
• For clear solutions, maintain correct oil-to-solubilizer ratio (typically 1:4 or 1:5)
• Compatible with glycerin, alcohol, and botanical extracts
• Commonly used in room sprays, facial mists, and water-based serums