This listing is for 2 Pack VCF Gel can be used with a diaphragm, a condom, or alone to prevent pregnancy. VCF Gel is safe and effective and contains the spermicide that doctors recommend most. VCF Vaginal Contraceptive Pre-Filled Gel Applicators - 10 Ct: 5 boxes Contains the spermicide doctors recommend most Safe and effective Easy to use Hormone Free Pre-Filled Applicators Individually Sealed. Effectiveness of any contraceptive method is directly related to the accuracy and consistency with which the method is used. Therefore, its important that you follow the directions carefully, otherwise, as with any contraceptive, reliability cannot be assured. This method of birth control must be used each and every time you have sex, regardless of the time of the month or the time of last application.