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.
Spermicides aren't effective on their own as they must be at the cervix, not just somewhere in the vagina. TV doc's tips to find best birth control for you There is a growing interest in the search for spermicides of natural origin which can be used to coat condoms and can also be developed as gels.