The test strips come Brand New In Box (BNIB) with 8 test sticks per box. Please note however that Persona are currently phasing in the new Persona Sticks that come in 16 per box so you may boxes of 16 sticks instead. Do not be alarmed if you receive these because the new sticks are compatible with both the old and new Persona Monitors. How does PERSONA work? PERSONA works by monitoring the hormones that directly control your cycle. The levels of these natural chemical 'messages' rise and fall as they regulate the various stages of your cycle. This makes it possible to identify the days around ovulation when you are at significant risk of becoming pregnant.* The Test Sticks collect hormones from your first urine of the day and process them into information that can be read by the Monitor. The Monitor then reads, stores and uses this information to let you know whether you are at risk of becoming pregnant ('Red' Day) or free to make love without a contraceptive* ('Green' Day). The egg usually only survives for up to a day, however it is possible for sperm to survive for several days inside your body around the time of ovulation. PERSONA takes into account both egg and sperm survival times.* During the first month of use, PERSONA will ask for 16 tests (day 6 and days 9-23) in order to build up a complete picture of your individual cycle as quickly as possible. From then on it will only ask for a test on 8 days of each cycle. *Based on independent trials, PERSONA is 94% reliable when used according to the instructions and as the only method of contraception.
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