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CAS No. 541-02-6
Cyclomethicones are cyclic (circular) silicones of low molecular weight that possess a cyclical structure rather than a chain structure (like Dimethicone). Some cyclic silicones are volatile (they evaporate) while others are not. Cyclic silicones that are volatile include D4 (Cyclotetrasiloxane), D5 (Cyclopentasiloxane) and D6 (Cyclohexasiloxane). In general, the lower the number, the more volatile the cyclic silicone and the faster it evaporates.
In the cosmetic industry, cyclic silicones are commonly referred to as Cyclomethicone. This is a generic name for this class of cyclic silicones that comprise D 4 through D6.
The cosmetic industry has largely moved to using primarily D5 Cyclopentasiloxane in cosmetic formulations and this is the cyclic silicone we offer in our LC995 Cyclomethicone.
Its volatility, excellent spreading and lubrication qualities make it an ideal carrier for other ingredients and excellent light conditioners for hair and skin. Non-greasy, cyclomethicone leaves no oily residue or build-up and imparts a soft silky feel to skin.
Our LC995 Cyclomethicone is a minimum of 96% Cyclopentasiloxane (D5) and will contain no more than 0.0 - 0.099% (a maximum of 990 parts per million) of D4 Cycloteterasiloxane. The Technical Specifications for its purity are as follows:
|D4 (cyclotetrasiloxane)||0.000 - 0.099%|
|D5 (cyclopentasiloxane)||96.000 - 100.000%|
|D6 (cyclohexasiloxane)||0.000 - 4.000%|
INCI: Cyclopentasiloxane or Cyclomethicone
Note: While it is preferable to label your product with the INCI Cyclopentasiloxane, the more generic Cyclomethicone may be used, hence we have provided both for reference.
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California Prop 65 Statement: The following statement is made in order to comply with the California Safe Drinking Water and Toxic Enforcement Act of 1986. This product is not known to the State of California to cause cancer, birth defects or other reproductive harm. Please refer to Section 15 of the MSDS for the most current information.
Usage Rate: 3% - 95%
Try out these formulations using this ingredient: