The Basics On Cyclomethicone
What is Cyclomethicone?
Silicone with a drier finish than dimethicone.
What are other names for Cyclomethicone?
CYCLOMETHICONE and CYCLOPENTASILOXANE, DECAMETHYL
What is Cyclomethicone used for?
The Bottom Line. Cyclomethicone is a volatile silicone that gives slip to skincare products, improves their texture, and carries active ingredients into the skin before evaporating into thin air. It’s safe to use and doesn’t clog pores.
How Cyclomethicone is classified
Emollients
Recommendations for using Cyclomethicone during pregnancy and breastfeeding
Limited data suggests no known risk
Cyclomethicone During Pregnancy
What we know about using Cyclomethicone while pregnant or breastfeeding
Limited information available.
Data on reproductive and developmental toxicity of polymerized tetramethylcyclotetrasiloxanes were not found in the published literature and no unpublished data were provided.
General safety info about Cyclomethicone from CIR
This is a safety assessment of 3 polymerized tetramethylcyclotetrasiloxanes as used in cosmetics. Industry reported that these ingredients are not used independently but are polymerized on the surface of metal oxide particles as particle surface coatings. This use does not reflect the functions listed in the International Cosmetic Ingredient Dictionary and Handbook (Dictionary) and it has not been verified that these ingredients are only used as particle surface coatings in cosmetics. The Cosmetic Ingredient Review (CIR) Expert Panel reviewed the available relevant data related to these ingredients. The Panel concluded that polysilicone-2, -4, and -5 are safe in cosmetics when used as surface modifiers (i.e., encapsulating metal oxides), and that the available data or information are insufficient to make a determination that these ingredients are safe for use independently for other functions as listed in the Dictionary (e.g., antifoaming agents, hair conditioning agents, and viscosity increasing agents – nonaqueous).
Use this, not that!
Products where you might find Cyclomethicone
ILIA Clean Line Gel Eyeliner
List of References
General sources: Drugs and Lactation Database (LactMed) [Internet]. Bethesda (MD): National Library of Medicine (US); 2006-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK501922/
N/A
Disclaimer: This material is provided for educational purposes only and is not intended for medical advice, diagnosis, or treatment. Consult your healthcare provider with any questions.
