Products are inserted deep into the vagina shortly before intercourse. Chemicals immobolize sperm. Thin latex rubber sheath for penis that collects semen. More than a billion sold last year. Inserted deep into the vagina like a diaphragm.
Keeps sperm from entering vagina.
May also prevent maturation and release of egg. A small amount of hormone is released constantly. The hormone prevents the ovaries from releasing eggs. Hormone also thickens cervical mucosa. Protection for up to 5 years.