Green Condom condoms do not contain casein, a milk protein that is added to the vast majority of condoms to improve the softness of latex. They also do not use any method that contains animal cruelty. Rubber latex: Latex is the sap of the hevea tree (also called a rubber tree). Dimethicone: This type of silicon oil is used to lubricate the condom. Hydrated Silica: Once the condoms have been produced, they are removed from the condom shaped rods and placed in a tumbling machine where they are coated with hydrated silica to prevent the rubber from sticking to itself. BHT: This antioxidant is used to control free radicals in rubber to prevent oxidative degeneration. Zinc Ethylphenyl Dithiocarbamate: This compound is used as an accelerator during the vulcanization process (hardening it). Sodium polynaphthalenesulfonate: The dispersing agent is added to the mix to increase the stability of the latex solution. Ceteth-12: To guarantee a perfectly mixed latex solution, this solubilizing and emulsifying agent is added. Laurtrimonium chloride: To ensure that there is no bacterial and fungal growth on the device, this compound is added as a preservative.