Permanent hair removal

Hi everyone, not sure if I am posting into the right group, appologies if not...I need some advice. I am thinking of having a treatment for my legs (full), just wondering if anyone had it and can give me some insight. Will it be removed permanently, or will it grow back after a while? I been having this problem since my childhood & it's really difficult especially at summer time, as I am shaving it grows back after 2 days 😣 Would love to get rid of completely, if there is a possibility at all..