I’ve heard such great things and desperate to get one (as a white as white person with as black as black hair and lots of it). But I’m really worried about untold damage. How do we know it’s safe to zap ourselves repeatedly? We know to stay safe in the sun, avoid sun beds etc. Are there any long term studies to say users have no higher rate of cancer than others? I appreciate I sound a bit crazy 
but if I could be reassured it’s definitely safe I’d buy one tomorrow!