No. Pjur only use the highest quality, purest silicones that are not harmful to the human body. Silicone molecules are larger than skin pores. As a result, they remain on the surface of the skin and are not absorbed. They form a breathable protective film that ensures long-lasting lubrication. The body then breaks down the personal lubricant as part of the natural process to regenerate the vagina's mucous membranes.