CYCLOHEXASILOXANE is graded F (Banned) by Expert·ING, based on COSING, FDA regulatory data. It is restricted under Sephora Clean (Prohibited).

CYCLOHEXASILOXANE

Safety grade: F

Cyclohexasiloxane (D6) is a cyclic silicone that gives products a smooth feel. The EU banned it in rinse-off cosmetics effective June 6, 2026, and will ban it in leave-on products from June 6, 2027. It is classified as persistent and bioaccumulative. Graded F because the rinse-off ban is in force. Expert Pro users can view the full product-type conditions.

This ingredient makes products feel smooth and silky while conditioning hair and skin, helping to reduce water loss and create a protective barrier that leaves surfaces soft and moisturized.

Graded using: COSING, FDA.

Last verified: June 7, 2026

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