Disliked
Cyclopentasiloxane
Silicon
Silicones are a colorless substance derived from the silicon mineral used to help boost the appearance and feel of a product.
Explained
Cyclopentasiloxane, or D5, is a silicone used to improve texture of products and trap moisture.
D5 is considered lightweight and volatile. Volatile means it evaporates quickly after application. Once evaporated, D5 leaves a thin barrier that helps keep skin hydrated.
It is also an emollient. Emollients help soften the skin and prevent water loss. Silicones create a silky texture in products. D5 helps other ingredients become more spreadable.
Studies show D5 is safe to use in skincare products. We recommend speaking with a skincare professional if you have concerns.
See all 5,951 products with Cyclopentasiloxane
Users who like it
18%
Users who avoid it
82%
What it does
Emollient
Having the quality of softening or soothing the skin.
Skin Conditioning
To hydrate and soften skin
Solvent
Capable of dissolving another substance.
Alternative names
Decamethylcyclopentasiloxane
D5
Prevalence
Somewhat common
Percentage of products that contain it
7.1%
Top categories
Makeup
Moisturizers
Sunscreens
Position
Predominant list placement
Top 25%
References
Products with Cyclopentasiloxane
CosIng Data
CosIng ID
75413
INCI Name
CYCLOPENTASILOXANE
EC #
 208-764-9
All Functions
Emollient, Hair Conditioning, Skin Conditioning, Solvent
