Ingredient

CASTOR OIL BIS-HYDROXYPROPYL DIMETHICONE ESTERS

Substance information

Ingredient on the basis of castor oil (ricinus communis seed oil). "Hydroxypropyl" refers to 2-hydroxypropanol (1,2-propanediol) as alcoholic component or generally the 2-hydroxypropyl group as hydrocarbon residue. Ingredient on the basis of poly(di)methyl siloxane ("dimethicone"). "Ester" or "esters" refers to an esterification product (condensation product of alcohol and acid) or a trans-esterification product obtained through direct reaction of fats (mostly triglycerides) with alcohols.

Function(s) of this ingredient in cosmetic products

SKIN CONDITIONING

Maintains the skin in good condition

Origin

plant/synthetic (Information may exclusively reflect the status at initial entry of this ingredient into the relevant INCI dictionary; technological progress may have added new manufacturing options based on substances of different origin)

Background information on use in cosmetics

Castor oil (INCI: RICINUS COMMUNIS SEED OIL) is obtained from the seeds of the miracle tree. Castor oil is characterised by a very high content of a special fatty acid: ricinoleic acid, a C18 fatty acid which has at C12 a hydroxyl group and at C-9 a double bond. The oil is in many cases processed further semi-synthetically to solubilizers, surfactants, emulsifiers and consistency enhancers. Silicones, chemically more precisely poly(organo)siloxanes, is a designation for a group of synthetic polymers in which silicone atoms are connected through oxygen atoms. The volatility and viscosity are determined by the chain length. The silicones include various compounds which contain as a characteristic functional group a polyorganosiloxane. Important classes are: dimethylpolysiloxanes, phenylmethyl polysiloxanes, cyclic methylsiloxanes and siloxanes modified with alkyl groups or PEG (polyethylene glycol). Silicones are water insoluble and have a low surface tension. The low surface tension is the reason for their good spreading quality; they constitute protective films on the skin which are vapor-permeable. They have no comedogenic effect and are particularly well tolerated on skin. Because of their favourable technological and cosmetic properties they are used rather frequently in cosmetics and serve for the improvement of care properties in skin and haircare products.

Belongs to the following substance groups

Ingredients for skincare

Regulating cosmetics

Cosmetics Ingredients are subject to regulation. Please note, different regulations may apply to cosmetic ingredients outside the EU.

Understanding your cosmetics

How are cosmetics kept safe in Europe?

Strict laws make sure that cosmetics and personal care products sold in the European Union are safe for people to use. Companies, national and European regulatory authorities share the responsibility of keeping cosmetic products safe.

What should I know about endocrine disruptors?

Some ingredients used in cosmetic products have been claimed to be ‘endocrine disruptors’ because they have the potential to mimic some of the properties of our hormones. Just because something has the potential to mimic a hormone does not mean it will disrupt our endocrine system. Many substances, including natural ones, mimic hormones but very few, and these are mostly potent medicines, have ever been shown to cause disruption of the endocrine system. The rigorous product safety assessments by qualified, scientific experts that companies are legally obliged to carry out cover all potential risks, including potential endocrine disruption.

Are cosmetics tested on animals? No!

In the European Union, testing cosmetics on animals has been fully banned since 2013. Over the last 30 years, long before a ban was in place, the cosmetics and personal care industry has invested in research and development to pioneer alternatives to animal testing tools to assess the safety of cosmetics ingredients and products.

What about allergens in cosmetics?

Many substances, natural or man-made, have the potential to cause an allergic reaction. An allergic reaction occurs when a person’s immune system reacts to substances that are harmless to most people. A substance that causes an allergic reaction is called an allergen. Cosmetics and personal care products may contain ingredients that can be allergenic for some people. This does not mean that the product is not safe for others to use.

Database

Cosmetics matter to people and play an important role in our everyday life. On average European consumers use over seven different cosmetics daily. You too? It’s only natural that you want to know more about the ingredients in those products.

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