Materials, products and services - the Green Guide Online provides details of the life cycle environmental impacts of construction materials and components, and the Green Book is a free online database of products and services.
Spermicides are used globally for birth control, with or without condoms. As the only means of birth control, spermicides are rarely effective. However, in conjunction with condoms, spermicides are somewhat effective in birth control.
How do female condoms work? Female condoms â also called internal condoms or the brand name FC2 Female CondomÂ® â are little nitrile (soft plastic) pouches that you put inside your vagina. They cover the inside of your vagina, creating a barrier that stops sperm from reaching an egg.