PEG-40 Hydrogenated Castor Oil, Castor Oil Ethoxylate, Ethoxylated Hydrogenated Castor Oil, Cremophor EL, Polyoxyl 35 Hydrogenated Castor Oil, PEG-40 HCO, 61788-85-0, 61791-12-6

PEG-40 Hydrogenated Castor Oil, Castor Oil Ethoxylate, Ethoxylated Hydrogenated Castor Oil, Cremophor EL, Polyoxyl 35 Hydrogenated Castor Oil, PEG-40 HCO, 61788-85-0, 61791-12-6

PEG-40 HYDROGENATED CASTOR OIL

1. PRODUCT DEFINITION AND CHEMICAL IDENTITY

Note: PEG-40 Hydrogenated Castor Oil is produced by the ethoxylation of hydrogenated castor oil with an average of 40 moles of ethylene oxide (EO). The hydrogenation step saturates the double bonds of the castor oil fatty acids, significantly improving the product's oxidative stability, colour, and shelf life compared to non-hydrogenated PEG-castor oil derivatives. It is a versatile non-ionic solubilizer, emulsifier, and emollient widely used in personal care, cosmetics, and pharmaceutical formulations.

2. PHYSICAL AND CHEMICAL PROPERTIES

3. FUNCTIONAL PROPERTIES AND MECHANISM OF ACTION

• Solubilizer: The primary function of PEG-40 Hydrogenated Castor Oil is its excellent ability to solubilize lipophilic (oil-soluble) ingredients—such as fragrances, essential oils, vitamins (A, D, E, K), and other hydrophobic actives—into clear, water-based formulations. The hydrophobic castor oil moiety associates with the oil, while the long PEG chains create a hydrophilic shield, forming stable microemulsions.

• Emulsifier (O/W): With an HLB of 13-15, it is an effective oil-in-water (O/W) emulsifier. It stabilizes emulsions by reducing interfacial tension between oil and water phases and forming a robust interfacial film, preventing droplet coalescence.

• Emollient and Skin Conditioner: As a derivative of castor oil, it provides moisturizing and skin-conditioning benefits, leaving a smooth, non-greasy after-feel. It helps form a protective layer on the skin, reducing transepidermal water loss (TEWL).

• Secondary Surfactant / Viscosity Builder: In surfactant-based cleansing systems (shampoos, body washes), it can act as a thickener, foam stabilizer, and refatting agent, mitigating the harshness of primary anionic surfactants.

• Stabilizer: Its inherent antioxidant content and oxidative stability, due to hydrogenation, help protect sensitive formulation ingredients from degradation, contributing to longer product shelf life.

4. SECTORAL APPLICATIONS AND USAGE RATES

5. MARKET AND TECHNOLOGICAL DEVELOPMENTS

• Global Market: The market for PEG hydrogenated castor oil was valued at approximately USD 1,035.4 million in 2019 and is projected to reach USD 1,429.7 million by 2027, growing at a CAGR of 4.3%. Growth is driven by intense demand from the cosmetics and pharmaceutical sectors.

• Technological Advancements:

  • More efficient hydrogenation and ethoxylation processes leading to products with a narrower oligomer distribution and improved performance.

  • Development of environmentally friendly, sustainable production methods.

6. ADVANTAGES AND DISADVANTAGES

7. ALTERNATIVES AND COMPARISON

8. SAFETY, STORAGE, AND REGULATORY INFORMATION

• GHS Classification: Not classified as a hazardous substance or mixture under CLP. May cause mild eye irritation. Refer to the supplier's SDS for the specific product.

• Safety Profile: Considered safe for cosmetic and pharmaceutical use at typical concentrations. The Cosmetic Ingredient Review (CIR) panel has assessed PEG-castor oil derivatives as safe.

• Storage: Store in a cool (<30 °C), dry, and well-ventilated area in tightly sealed containers. The product may thicken or solidify at low temperatures; gentle warming to 30-40 °C will restore its liquid, pourable form without affecting quality.

• Shelf Life: Typically 24 months from the date of manufacture in unopened, original packaging.

• Personal Protection: For handling large quantities, standard industrial hygiene practices (nitrile gloves, safety goggles) are recommended.

9. QUICK REFERENCE TABLE