Almost all patients require multiple sessions in order to produce optimal end result. This is because laser hair removal grows in cycles. Each and every the hairs are within the growth phase at any given time. Additional sessions are crucial to ensure that you catch all these phases.
Most laser hair removal clinics won't accept you for treatment if informed active tan on skin color. This is for your own safety. Should you want to have hair removed by laser you must avoid sun damage for 1 month before and after your treatment.
After the session, epidermis in the treated area will be red and a little infected. This should subside in a full day or two