Cyclopentasiloxane

Decamethylcyclopentasiloxane (D5) is a silicone fluid commonly used in cosmetics such as deodorant

Deodorant

Deodorants are substances applied to the body to affect body odor caused by bacterial growth and the smell associated with bacterial breakdown of perspiration in armpits, feet and other areas of the body. A subgroup of deodorants, antiperspirants, affect odor as well as prevent sweating by...

s, sunblocks, hair spray

Hair spray

Hair spray is a common cosmetic product that is sprayed onto hair to keep it stiff or in a certain style...

s and skin care products. It is becoming more common in hair conditioners, as it makes the hair easier to brush without breakage. It is also used as part of silicone based personal lubricants. It can be found in other cosmetics such as sunless tanning lotion and underarm deodorants. D5 is an emollient.

D5 is contained in the mixture cyclomethicone (INCI name).