On most days of the month you do not need to use contraceptive. By monitoring changes in your personal hormone levels Persona can tell you when these days are.
Persona is made up of test sticks and a hand-held Monitor (Not supplied in this pack). Only persona test sticks should be used with the persona monitor. This pack contains: 8 persona test sticks - sufficient for one complete cycle after your first cycle for use. Pease read the user guide supplied with the monitor and the enclosed instruction leaflet in before using the test sticks.
No method of contraception can provide 100% protection against pregnancy. Based on in depended trials. Persona is 94% reliable when used according to instructions and as the only method of contraception. This means that if 100 women use Persona for one year, 6 are expected to become pregnant as a result of persona incorrectly identifying their fertile days.