Peg 40 Castor Oil Ethoxylate 

PEG 40 Castor oil, also known as Castor oil ethoxylate (POE 40) is a Multifunctional Oil-in-Water Emulsifier, Surfactant, Foam Booster. It is a safe, easy to use, vegetable derived non ionic surfactant, and serves a number of useful purposes.

PEG 40 Castor oil is a multifunctional non ionic surfactant used as fragrance builder and fragrance solubilizer, emulsifier. PEG 40 can be incorporated in to a formulation to help solubilize PLUS act as a foam booster, which benefits the formulator by possibly eliminating a secondary surfactant, or lessening the use of a secondary surfactant for example. 

In some formulations it is a good replacement for polysorbates used to  incorporate fragrances and oils in to water based blends like shampoos and body washes.  Whether you are making from  creams and lotions, and floral waters, room and fabric sprays, body washes, shampoos, even bath bombs, and need a good solubilizer for colors, fragrances, give PEG 40 Castor oil a try.  

Out side of uses in the personal care formulations, thoxylated castor oil POE 40 is found in lubricants, specialty formulations that have applications in metals, textiles and other areas too. 

Non Ionic - Compatible with non-ionic, anionic, and cationic ingredients and products.

Useful as a surfactant (foam booster.) As an emulsifier, solubilizer, and foam booster.
Miscible in both oils and in water 
Use in a heated oil,  or in cool down phase at 1% to 10%, although it's safe to use up to 100% (Neat) on skin. 

HLB 15

Appearance: Tan Hazy Liquid

Cloud Point: 185°F (85.0°C) 

CAS # 61791-12-6

Also Known as: PEG-40 Hydrogenated Castor Oil, 40 Mol Castor Oil Ethoxylate, 40 Mol Ethoxylated castor Oil, Castor Oil Ethoxylate POE 40, PEG 40 Castor Oil