》Is Cyclohexasiloxane Safe?
The safety of the group of cyclomethicone ingredients, including cyclohexasiloxane, has been assessed by the Cosmetic Ingredient Review Expert Panel. The Panel that there is minimal absorption of the ingredient and the available research did not suggest skin irritation or sensitization. The Panel concluded that these ingredients are safe in the present applications and concentration.
One issue with cyclohexasiloxane is its potential impact on the environment. Cyclohexasiloxane doesn’t readily degrade. This may have a disrupting effect on the environment. As a precautionary measure, the European Union in 2020, limited concentrations of cyclohexasiloxane in products to 0.1%. 0.1% is generally the concentration it is used at, so this is unlikely to affect the formulation of your favorite skincare products if other countries adopt this same policy.