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PEG-40 Hydrogenated Castor Oil

What PEG-40 Hydrogenated Castor Oil is & what it does

A solubilizer and emulsifier that disperses fragrance, oils, and oil-soluble filters into water-based formulas, keeping them clear and stable.

What does PEG-40 Hydrogenated Castor Oil do in skincare?

PEG-40 Hydrogenated Castor Oil is commonly used as a solubilizer and emulsifier. It helps blend oils, fragrances, and other oil-soluble ingredients into water-based formulas, keeping the product clear and stable.

Is PEG-40 Hydrogenated Castor Oil safe?

PEG-40 Hydrogenated Castor Oil is widely used across many cosmetic products and is generally considered well tolerated at the levels used in formulas. As with any surfactant, very sensitive skin may occasionally react, so a patch test can help if you are prone to sensitivity.

Is PEG-40 Hydrogenated Castor Oil natural or synthetic?

PEG-40 Hydrogenated Castor Oil is best described as semi-synthetic. It starts from natural castor oil, which is then hydrogenated and reacted with polyethylene glycol, so it is a processed derivative of a plant oil rather than a purely natural or fully synthetic ingredient.

Sunscreens with PEG-40 Hydrogenated Castor Oil

We rate 68 sunscreens that contain it, showing the top 10 by overall score:

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