Receive a free VCF Birth Control Sample Pack in the mail. VCF Vaginal Contraceptive Film is a soft square of soluble film that dissolves with your body¡¯s natural moisture. Once VCF dissolves, it creates a gel coating that contains a highly effective spermicide that kills sperm on contact for up to 3 hours. Hormone free birth control. Safe and Effective. Click on the pink ¡°Free Sample¡± button and fill out the form to make your request.