Cyclomethicone

CAS:  541-02-6

INCI: Cyclotetrasiloxane, cyclopentasiloxane

Chemical Structure:

• Cyclomethicone is a type of silicone, specifically a cyclic silicone compound.
• It is typically a mixture of various cyclic dimethylsiloxane molecules.

Physical Form:

• Cyclomethicone is a clear, colorless liquid.

Properties:

1. Volatile Nature: Cyclomethicone is a volatile silicone, meaning it evaporates quickly upon application.
2. Low Viscosity: It has a low viscosity, giving it a light and silky texture.
3. Odorless: Cyclomethicone is generally odorless.
4. Non-Greasy Feel: It imparts a smooth, non-greasy feel to the skin.

Function in Formulations:

1. Carrier and Solvent: Cyclomethicone is often used as a carrier for other ingredients, helping to deliver them to the skin.
2. Emollient: It provides a silky and smooth feel, enhancing the texture of skincare and cosmetic products.
3. Spreadability: Cyclomethicone improves the spreadability of formulations, making them easy to apply.
4. Quick Evaporation: Its quick evaporation leaves a dry, non-greasy finish on the skin.

Common Applications:

• Cyclomethicone is used in a variety of personal care and cosmetic products, including skincare, hair care, and makeup formulations.

Common Products:

• Moisturizers, serums, hair conditioners, hair styling products, sunscreens, and makeup products often contain cyclomethicone.

Benefits:

1. Enhanced Texture: It imparts a luxurious and smooth texture to formulations.
2. Quick Absorption: Products containing cyclomethicone are known for their quick absorption and non-greasy feel.
3. Improved Spreadability: It helps in spreading products evenly over the skin or hair.

Considerations:

• Cyclomethicone is generally considered safe for cosmetic use, but individuals with silicone sensitivities should be cautious.

Regulatory Status:

• Cyclomethicone is widely used in the cosmetic industry and is considered safe for use in personal care products when formulated according to regulatory guidelines.

Material Safety Data Sheet