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Excipient (pharmacologically inactive substance)

Medically reviewed by Last updated on April 7, 2020.

What is it?

Dimethicone (also called polymethylsiloxane or dimethylpolysiloxane) is a silicon-based polymer used as a lubricant and conditioning agent. It functions as an anti-foaming agent, skin conditioning agent, occlusive and skin protectant. It is found in many cosmetic and hygiene products like nail polish, conditioners, make-up, contact lens solutions, sunscreens, deodorants, and shampoo. Examples of products that contain dimethicone include Aveeno Moisturizing Lotion and Johnson's Baby Cream.

[1] [1] Dimethicone Cream. Accessed March 31, 2014.

[2] [2]Environmental Working Group. Dimethicone. Accessed March 31, 2014.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.